REVIEW COMMENTS
The City of Boynto
DEVELOPMENl
PLANNING AND;
100 E. Boynton
P.O. B
Boynton Beach, F
TEL: 561.
FAX: 561
www.boyntc
September 7, 2007
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Ms. Roberta Farley, Pre~~Qent
Los Mangos Property Association
570 SE 28th Avenue
Boynton Beach, Florida 33435
Re: Los Mangos
MMSP 07-059 (revised)
Dear Ms. Farley:
In response to your request dated June 25, 2007 for the
administrative review and approval of the modifications proposed to
the above-referenced approved site plan, depicting the following:
· Modification of existing screen enclosures and construction of
new screen and non-screen enclosures (as depicted on the
attached plan) .
Please be informed that the proposed changes on the revised
date stamped 7/5/07 are "minor" as defined within the
Development Regulations, Chapter 4 Si te Plan Review.
project may continue to be processed by the Building Division
permit application, subject to the following conditions:
plan
Land
This
as a
1. All new enclosures shall be set back a minimum of three (3) feet
from the common property line with their neighbor. In addition, the
roof overhang may not extend more than one (1) foot from the wall
face. Any roof overhang beyond the face of the wall would be
required to be one-hour fire rated. These conditions reflect the
requirements of the Building Code, which are intended to prevent
the spread of fire from one residence to another.
2. A minimum clearance of thirty (30) inches must be maintained around
any electrical equipment attached to the wall, per FP&L regulations
and National Electrical Code (NEC). This thirty (30) inch
measurement must be wholly on one's own property, as the neighbor's
property may not be counted towards meeting this requirement. When
more than one electrical component is mounted on the wall (i.e.
electric meter and electrical disconnect), clearance of a minimum
of thirty (30) inches must be maintained from the outer edges of
the equipment combined. This clearance regulation pertains to any
type of structure, including fences and building/screen additions.
. Page 2
September 12, 2007
3. Those existing, legally permitted, screen enclosures may be fully
enclosed through the use of a one-hour rated firewall if the
enclosure is within three (3) feet of the common property line with
a neighbor, including a one-hour fire rating of any roof overhang.
However, if the adjoining property already has a non-fire rated
improvement within three (3) feet of the common property line, the
proposed enclosing of the screen room must be set back a minimum of
six (6) feet from the non-fire rated improvement on the adjacent
property, unless the non-rated improvement is simultaneously
upgraded to a one-hour rating. Lastly, as noted in Condition #2
above, a minimum clearance of thirty (30) inches must be maintained
around any electrical equipment attached to the wall, per FP&L
regulations and National Electrical Code (NEC).
4. Those structures legally permitted at the time of this approval,
which do not comply with these provisions, will be considered
legally non-conforming, and allowed to remain unless damaged by 50%
or more of it's assessed value, in which instance they shall be
made to conform with these regulations or removed.
Please note that, in addition to the above conditions, additional
comments may be generated at time of permit review.
Lastly, also be advised that the proposed changes may require a
modification to the building permit. Please contact me at (561)
742-6260 if you have additional questions.
Sincerely,
Ed Breese, Principal Planner
Cc: Karen Main, Plan Review Analyst
Mike Rumpf, Planning & Zoning Director
Tim Large, Building Codes Administrator
Don Johnson, Sr. Structural Plans Review Analyst
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BUILDING PLANNING
ONE-HOUR FIRE-RESISTANCE-RATED
CONSTRUCTION ON UNDERSIDE OF
PROJECTION
ONE-HOUR FIRE-RESISTANCE
RATING WITH EXPOSURE
FROM BOTH SIDES -.1'"
I
I
/ONE-HOUR FIRE-RESISTANCE RATING WITH
< 6 FT .r EXPOSURE FROM BOTH SIDES
Q PROJECTION
4 FT I
MIN.
EXTERIOR WALL
-
NO OPENINGS
PERMITTED
EXTERIOR WALL
NO OPENINGS
PERMITTED
;:; 6FT
For 51: 1 foot = 304.8 mm.
ONE-HOUR FIRE
RESISTANCE OF WALL
AND PROJECTION
NOT REQUIRED
EXTERIOR WALL
Figure R302.1 (1)
EXTERIOR WALLS AND PROJECTIONS
vided capable of producing an average illumination of
6 footcandles (6.46 lux) over the area of the room at a
height of 30 inches (762 mm) above the floor level.
All habitable rooms are to be provided with an aggre-
gate glazing area of 8 percent of the floor area, with a
minimal open able area of 4 percent of the floor area
being ventilated. The purpose of the glazing and the
portion that is openable is to provide both natural light
and ventilation. The requirement for adequate light
and ventilation dates back to at least 1619 when King
James 1 issued a proclamation known as the Birth of
Building Act.
For example, in Figure R303.1, the room dimen-
sions are 15 feet times 20 feet (4572 mm times 6096
NIl
mm), or 300 square feet (27.9 m2) of area. If
Band C are double hung, with a combined gl
of 24 square feet (2.23 m2), they provide the
area required of 8 percent of the floor area (3
feet x .08 = 24 square feet). In this example,
unit A is not required for natural light.
The minimum 8% glazed area applies stri
glazed area. The perimeter frame, horizontal
cal mullions could not be used for this calcula ..
Additionally, in Figure R303.1, the combined
able area (the net-free area of a door, window,
vent or skylight, etc., when fully open) of dou
windows Band C is equal to 4 percent of the
[(300 sqare feet) x 0.04] = 12 square feet (1
open able area of window A is not required for
2004 FLORIDA BUILDING CODE, RESIDENTIAL COM
~?L
vO rV'd v G j--O fl--S
ARTICLE 230 - SERVICES
230.24
(4) Where installed in conduit and under not less than
450 mm (18 in.) of earth beneath a building or other
structure
230.7 Other Conductors in Raceway or Cable. Conduc-
tors other than service conductors shall not be installed in
the same service raceway or service cable.
Exception No.1: Growuling conductors and bonding jumpers.
Exception No.2: Load management control conductors
having overcurrent protection.
(B) Minimum Size. The conductors shall not be smaller
than 8 AWG copper or 6 AWG aluminum or copper-clad
aluminum.
Exception: Conductors supplying only limited loads of a
single branch circuit - such as small polyphase power,
controlled water heaters, and similar loads - shall not be
smaller than 12 A WG hard-drawn copper or equivalent.
(C) Grounded Conductors. The grounded conductor shall
not be less than the minimum size as required by 250.24(C).
230.8 Raceway Seal. Where a service raceway enters a ~30.24 Clearances. Service-drop conductors shall not be
building or structure from an underground distribution sys- /' ;eadily accessible and shall comply with 230.24(A) through
tern, it shall be sealed in accordance with 300.5(G). Spare (D) for services not over 600 volts, nominal.
or unused raceways shall also be sealed. Sealants shall be
identified for use with the cable insulation, shield, or other
components.
230.9 Clearances on Buildings. Service conductors and
final spans shall comply with 230.9(A), (B), and (C).
(A) Clearances. Service conductors installed as open con-
ductors or multiconductor cable without an overall outer
jacket shall have a clearance of not less than 900 mm (3 ft)
from windows that are designed to be opened, doors, porches,
balconies, ladders, stairs, fire escapes, or similar locations.
Exception: Conductors run above the top level of a win-
dow shall be permitted to be less than the 900-mm (3-ft)
requirement.
(B) Vertical Clearance. The vertical clearance of final
spans above, or within 900 mm (3 ft) measured horizontally
of, platforms, projections, or surfaces from which they might
be reached shall be maintained in accordance with 230.24(B).
(C) Building Openings. Overhead service conductors
shall not be installed beneath openings through which ma-
terials may be moved, such as openings in farm and com-
mercial buildings, and shall not be installed where they
obstruct entrance to these building openings.
230.10 Vegetation as Support. Vegetation such as trees
shall not be used for support of overhead service conductors.
II. Overhead Service-Drop Conductors
230.22 Insulation or Covering. Individual conductors
shall be insulated or covered.
Exception: The grounded conductor of a multiconductor
cable shall be permitted to be bare.
230.23 Size and Rating.
(A) General. Conductors shall have sufficient ampacity to
carry the current for the load as calculated in accordance with
Article 220 and shall have adequate mechanical strength.
2005 Edition
NATIONAL ELECTRICAL CODE
f- (A) Above Roofs. Conductors shall have a vertical clear-
ance of not less than 2.5 m (8 ft) above the roof surface.
The vertical clearance above the roof level shall be main-
tained for a distance of not less than 900 mm (3 ft) in all
directions from the edge of the roof.
oil
Exception No.1: The area above a roof surface subject to
pedestrian or vehicular traffic shall have a vertical clear-
ance from the roof surface in accordance with the clear-
ance requirements of 230.24(B).
Exception No.2: Where the voltage between conductors
does not exceed 300 and the roof has a slope of 100 mm in
300 mm (4 in. in 12 in.) or greater, a reduction in clearance
to 900 mm (3 ft) shall be permitted.
Exception No.3: Where the voltage between conductors
does not exceed 300, a reduction in clearance above only
the overhanging portion of the roof to not less than 450 mm
(18 in.) shall be permitted if(l) not more than 1.8 m (6ft)
of service-drop conductors, 1.2 m (4 ft) horizontally, pass
above the roof overhang, and (2) they are terminated at a
through-the-roof raceway or approved support.
FPN: See 230.28 for mast supports.
Exception: The requirement for maintaining the vertical
clearance 900 mm (3 ft) from the edge of the roof shall not
apply to the final conductor span where the service drop is
attached to the side of a building.
(B) Vertical Clearance from Ground. Service-drop con-
ductors, where not in excess of 600 volts, nominal, shall
have the following minimum clearance from final grade:
(1) 3.0 m (10 ft) - at the electric service entrance to
buildings, also at the lowest point of the drip loop of
the building electric entrance, and above areas or side-
walks accessible only to pedestrians, measured from
final grade or other accessible surface only for service-
drop cables supported on and cabled together with a
grounded bare messenger where the voltage does not
exceed 150 volts to ground
70-73
230.26
--4
ARTICLE 230 - SERVICES
"
(2) 3.7 m (12 ft) - over residential property and driveways,
and those commercial areas not subject to truck traffic
where the voltage does not exceed 300 volts to ground
(3) 4.5 m (15 ft) - for those areas listed in the 3.7-m (12-ft)
classification where the voltage exceeds 300 volts to
ground
(4) 5.5 m (18 ft) - over public streets, alleys, roads, park-
ing areas subject to truck traffic, driveways on other
than residential property, and other land such as culti-
vated, grazing, forest, and orchard
(C) Clearance from Building Openings. See 230.9.
(D) Clearance from Swimming Pools. See 680.8.
230.26 Point of Attachment. The point of attachment of
the service-drop conductors to a building or other structure
shall provide the minimum clearances as specified in 230.9
and 230.24. In no case shall this point of attachment be less
than 3.0 m (10 ft) above finished grade.
230.27 Means of Attachment. Multiconductor cables used
for service drops shall be attached to buildings or other
structures by fittings identified for use with service conduc-
tors. Open conductors shall be attached to fittings identified
for use with service conductors or to noncombustible, non-
absorbent insulators securely attached to the building or
other structure.
230.28 Service Masts as Supports. Where a service mast
is used for the support of service-drop conductors, it shall
be of adequate strength or be supported by braces or guys
to withstand safely the strain imposed by the service drop.
Where raceway-type service masts are used, all raceway
fittings shall be identified for use with service masts. Only
power service-drop conductors shall be permitted to be at-
tached to a service mast
230.29 Supports over Buildings. Service-drop conductors
passing over a roof shall be securely supported by substan-
tial structures. Where practicable, such supports shall be
independent of the building.
III. Underground Service-Lateral Conductors
230.30 Insulation. Service-lateral conductors shall be in-
sulated for the applied voltage.
Exception: A grounded conductor shall be permitted to be
uninsulated as follows:
( 1) Bare copper used in a raceway.
(2) Bare copper for direct burial where bare copper is
judged to be suitable for the soil conditions.
70-74
(3) Bare copper for direct burial without regard to soil
conditions where part of a cable assembly identified for
underground use.
(4) Aluminum or copper-clad aluminum without individual
insulation or covering where part of a cable assembly
identified for underground use in a raceway or for direct
buriaL
230.31 Size and Rating.
(A) General. Service-lateral conductors shall have suffi-
cient ampacity to carry the current for the load as calculated
in accordance with Article 220 and shall have adequate
mechanical strength.
(B) Minimum Size. The conductors shall not be smaller
than 8 AWG copper or 6 AWG aluminum or copper-clad
aluminum.
Exception: Conductors supplying only limited loads of a
single branch circuit - such as small polyphase power;
controlled water heaters. and similar loads - shall not be
smaller than 12 A we copper or 10 A we aluminum or
copper-clad aluminum.
(C) Grounded Conductors. The grounded conductor shall
not be less than the minimum size required by 250.24(C).
230.32 Protection Against Damage. Underground service-
lateral conductors shall be protected against damage in ac-
cordance with 300.5. Service-lateral conductors entering a
building shall be installed in accordance with 230.6 or pro-
tected by a raceway wiring method identified in 230.43.
230.33 Spliced Conductors. Service-lateral conductors
shall be permitted to be spliced or tapped in accordance
with 110.14, 300.5(E), 300.13, and 300.15.
IV. Service-Entrance Conductors
230.40 Number of Service-Entrance Conductor Sets.
Each service drop or lateral shall supply only one set of
service-entrance conductors.
Exception No.1: A building slwll be permitted to Iwve one
set of service-entrance conductors for each service, as defined
in 230.2, run to each occupancy or group of occupancies.
Exception No.2: Where two to six service disconnecting
means in separate enclosures are grouped at one location
and supply separate loads from one service drop or lateral,
one set of service-entrance conductors shall be permitted to
supply each or several such service equipment enclosures.
Exception No.3: A single-family dwelling unit and a sepa-
rate structure shall be permitted to have one set of service-
entrance conductors run to each from a single service drop
or lateraL
NATIONAL ELECTRICAL CODE 2005 Edition
110.18
ARTICLE' - REQUIREMENTS FOR ELECTRICAL INSTALLA
\IS
FPN No.1: NFPA 70E-2004, Standard for Electrical
Safety in the Workplace, provides assistance in determining
severity of potential exposure, planning safe work prac-
tices, and selecting personal protective equipment
FPN No.2: ANSI Z535A-1998, Product Safety Signs and
Labels, provides guidelines for the design of safety signs
and labels for application to products.
110.18 Arcing Parts. Parts of electric equipment that in or-
dinary operation produce arcs, sparks, flames, or molten metal
shall be enclosed or separated and isolated from all combus-
tible material.
FPN: For hazardous (classified) locations, see Articles 500
through 517. For motors, see 430.14.
110.19 Light and Power from Railway Conductors. Cir-
cuits for lighting and power shall not be connected to any
system that contains trolley wires with a ground return.
Exception: Such circuit connections shall be permitted in
car houses, power houses, or passenger and freight stations
operated in connection with electric railways.
110.21 Marking. The manufacturer's name, trademark, or
other descriptive marking by which the organization re-
sponsible for the product can be identified shall be placed
on all electric equipment. Other markings that indicate volt-
age, current, wattage, or other ratings shall be provided as
specified elsewhere in this Code. The marking shall be of
sufficient durability to withstand the environment involved.
110.22 Identification of Disconnecting Means. Each dis-
connecting means shall be legibly marked to indicate its
purpose unless located and arranged so the purpose is evi-
dent. The marking shall be of sufficient durability to with-
stand the environment involved.
Where circuit breakers or fuses are applied in compliance
with the series combination ratings marked on the equipment
by the manufacturer, the equipment enclosure(s) shall be leg-
ibly marked in the field to indicate the equipment has been
applied with a series combination rating. The marking shall be
readily visible and state the following:
CAUTION - SERIES COMBINATION SYSTEM
RATED AMPERES. IDENTIFIED
REPLACEMENT COMPONENTS REQUIRED.
FPN: See 240.86(B) for interrupting rating marking for
end-use equipment
110.23 Current Transformers. Unused current transform-
ers associated with potentially energized circuits shall be
short-circuited.
70-36
II. 600 Volts, Nominal, or Less
~110.26 Spaces About Electrical Equipment. Sufficient
~ access and working space shall be provided and maintained
about all electric equipment to permit ready and safe opera-
tion and maintenance of such equipment. Enclosures hous-
ing electrical apparatus that are controlled by a lock(s) shall
be considered accessible to qualified persons.
(A) Working Space. Working space for equipment operat-
ing at 600 volts, nominal, or less to ground and likely to
require examination, adjustment, servicing, or maintenance
while energized shall comply with the dimensions of
1l0.26(A)(I), (A)(2), and (A)(3) or as required or permitted
elsewhere in this Code.
(1) Depth of Working Space. The depth of the working
space in the direction of live parts shall not be less than that
specified in Table 1l0.26(A)(1)(1) unless the requirements
of 1l0.26(A)(I)(a), (A)(1)(b), or (A)(l)(c) are met. Dis-
tances shall be measured from the exposed live parts or
from the enclosure or opening if the live parts are enclosed.
Table 110.26(A)(I) Working Spaces
Nominal
Voltage to
Ground
Minimum Clear Distance
Condition 1 Condition 2
~ i~ 900 mm (3 ft)
900 rnm (3 ft) 1.1 m (31/2 ft)
Condition 3
0-150
151-600
900 mm (3 ft)
1.2 m (4 ft)
Note: Where the conditions are as follows:
Condition 1 - Exposed live parts on one side of the working space
and no live or grounded parts on the other side of the working space,
or exposed live parts on both sides of the working space that are
effectively guarded by insulating materials.
Condition 2 - Exposed live parts on one side of the working space
and grounded parts on the other side of the working space. Concrete,
brick, or tile walls shall be considered as grounded.
Condition 3 - Exposed live parts on both sides of the working
space.
(a) Dead-Front Assemblies. Working space shall not
be required in the back or sides of assemblies, such as
dead-front switchboards or motor control centers, where all
connections and all renewable or adjustable parts, such as
fuses or switches, are accessible from locations other than
the back or sides. Where rear access is required to work on
nonelectrical parts on the back of enclosed equipment, a
minimum horizontal working space of 762 mm (30 in.)
shall be provided.
(b) Low Voltage. By special permission, smaller working
spaces shall be permitted where all exposed live parts operate
at not greater than 30 volts rms, 42 volts peak, or 60 volts dc.
(c) Existing Buildings. In existing buildings where
electrical equipment is being replaced, Condition 2 working
clearance shall be permitted between dead-front switch-
NATIONAL ELECTRICAL CODE 2005 Edition
ARTICLE 110 - REQUIREMENTS FOR ELECTRICAL INST ALLA TIONS
110.26
boards, panelboards, or motor control centers located
across the aisle from each other where conditions of main-
tenance and supervision ensure that written procedures
have been adopted to prohibit equipment on both sides of
the aisle from being open at the same time and qualified
persons who are authorized will service the installation.
~
(2) Width of Working Space. The width of the working
space in front of the electric ui ment shall be the width
of the equipment or 750 m (30 in.) whichever is greater.
In all cases, the work space sila permit at least a 90 degree
opening of equipment doors or hinged panels.
(3) Height of Working Space. The work space shall be
clear and extend from the grade, floor, or platform to the
height required by llO.26(E). Within the height require-
ments of this section, other equipment that is associated
with the electrical installation and is located above or be-
low the electrical equipment shall be permitted to extend
not more than 150 mm (6 in.) beyond the front of the
electrical equipment.
(B) Clear Spaces. Working space required by this section
shall not be used for storage. When normally enclosed live
parts are exposed for inspection or servicing, the working
space, if in a passageway or general open space, shall be
suitably guarded.
(C) Entrance to Working Space.
(1) Minimum Required. At least one entrance of suffi-
cient area shall be provided to give access to working space
about electrical equipment.
(2) Large Equipment. For equipment rated 1200 amperes
or more that contains overcurrent devices, switching de-
vices, or control devices, there shall be one entrance to the
required working space not less than 610 mm (24 in.) wide
and 2.0 m (61J2 ft) high at each end of the working space.
Where the entrance has a personnel door(s), the door(s)
shall open in the direction of egress and be equipped with
panic bars, pressure plates, or other devices that are nor-
mally latched but open under simple pressure.
A single entrance to the required working space shall be
permitted where either of the conditions in 1l0.26(C)(2)(a)
or (C)(2)(b) is met.
(a) Unobstructed Exit. Where the location permits a
continuous and unobstructed way of exit travel, a single
entrance to the working space shall be permitted.
(b) Extra Working Space. Where the depth of the
working space is twice that required by 1l0.26(A)(I), a
single entrance shall be permitted. It shall be located so that
the distance from the equipment to the nearest edge of the
entrance is not less than the minimum clear distance speci-
fied in Table 1l0.26(A)(1) for equipment operating at that
voltage and in that condition.
2005 Edition NATIONAL ELECTRICAL CODE
(D) Illumination. Illumination shall be provided for all
working spaces about service equipment, switchboards,
panelboards, or motor control centers installed indoors. Ad-
ditional lighting outlets shall not be required where the
work space is illuminated by an adjacent light source or as
permitted by 21O.70(A)(1), Exception No.1, for switched
receptacles. In electrical equipment rooms, the illumination
shall not be controlled by automatic means only.
'"
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(E) Headroom. The minimum headroom of working
spaces about service equipment, switchboards, panelboards,
or motor control centers shall be 2.0 m (61/2 ft). Where the
electrical equipment exceeds 2.0 m (61/2 ft) in height, the
minimum headroom shall not be less than the height of the
equipment.
Exception: In existing dwelling units, service equipment
or panelboards that do not exceed 200 amperes shall be
permitted in spaces where the headroom is less than 2.0 m
(61/2 ft).
(F) Dedicated Equipment Space. All switchboards, panel-
boards, distribution boards, and motor control centers shall be
located in dedicated spaces and protected from damage.
Exception: Control equipment that by its very nature or
because of other rules of the Code must be adjacent to or
within sight of its operating machinery shall be permitted
in those locations.
(1) Indoor. Indoor installations shall comply with
1l0.26(F)(1)(a) through (F)(1)(d).
(a) Dedicated Electrical Space. The space equal to the
width and depth of the equipment and extending from the
floor to a height of 1.8 m (6 ft) above the equipment or to
the structural ceiling, whichever is lower, shall be dedicated
to the electrical installation. No piping, ducts, leak protec-
tion apparatus, or other equipment foreign to the electrical
installation shall be located in this zone.
Exception: Suspended ceilings with removable panels shall
be permitted within the 1.S-m (6-ft) zone.
(b) Foreign Systems. The area above the dedicated
space required by 1l0.26(F)(1)(a) shall be permitted to con-
tain foreign systems, provided protection is installed to
avoid damage to the electrical equipment from condensa-
tion, leaks, or breaks in such foreign systems.
(c) Sprinkler Protection. Sprinkler protection shall be
permitted for the dedicated space where the piping com-
plies with this section.
(d) Suspended Ceilings. A dropped, suspended, or simi-
lar ceiling that does not add strength to the building structure
shall not be considered a structural ceiling.
70-37
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Electric Service Standards
SUBJECT
DATE
02-27 -06
~ARED BY
SECTION: PAGE
DIstribution Construction
Processes
IV. SERVICE and METER CONNECTIONS
IV: 30f21
Where for any reason, a main disconnecting switch is required in multi-metered service
installations, it will be on the line side of the meters. The door of this switch box shall be
sealable. No socket or current transformer cabinet will be required ahead of this switch.
d. Service Equipment Rated Over 600 Volts
When the Customer takes service at primary voltage, he shall provide service equipment
rated for the voltage supplied. The service equipment will normally be on the load side of
FPL's instrument transformer metering installation.
The service equipment shall satisfy all the requirements of the NEC, the building code, and
the inspecting authority.
FPL shall be consulted so that the Customer's primary service equipment may be
coordinated with FPL's feeder protection circuit breakers and fuses.
B. Overhead Service
For residential overhead service, the attachment will normally be within ten feet of the corner, on the
side of the building nearest FPL's secondary facilities (Fig. IV-4). The Customer's service entrance
should be installed in such fashion that service drop wires will not cross over buildings, swimming
pools, or adjacent property not owned by the Customer. FPL may provide the Customer with two
copies of an "Electric Service and Meter Location" sketch (FPL form 1453) confirming the service
location (Fig. IV-3).
1. Vertical Clearance to Ground
The point of attachment for service drops not exceeding 150 volts from any conductor to ground
shall allow ten feet of ground clearance to lowest point of sag in the service drop.
Service drops exceeding 150 volts but less than 300 volts from any conductor to ground shall
allow ten & one-half feet of ground clearance to lowest point of sag.
Where the service drop must pass over immediately adjacent driveways or parking areas subject
to truck traffic or if it is within 25 feet of a swimming pool or if the voltage to ground is over 300
volts, additional clearance shall be provided. In these cases a greater attachment height shall be
provided.
The required attachment height will be shown on the "Electric Service & Meter Location" sketch.
It is important the Customer furnish this information to the building contractor and electrician.
2. Clearance from Building Openings
Service conductors shall have a clearance of not less than three feet from windows, doors,
porches, fire escapes or similar openings.
3. Clearance from Swimming Pools
FPL prefers a minimum horizontal clearance of 10 feet from its facilities to swimming ,pool edges
or pool enclosures. However if certain conditions are met, including minimum vertical clearances,
the National Electrical Safety Code (NESC) provides for less than 10 feet of horizontal separation.
Costly relocations of existing services may become necessary if the Customer builds a pool too
near FPL's electric facilities. Should there be any question of conflict between the location of a
new swimming pool or pool enclosure and FPL's facilities, the Customer is to contact FPL before
construction of the pool facilities to ensure required NESC clearances are met.
~ 2006, Florida Power & Light Company
Page 30t 21
.
I=PL
PREPARED BY
Electric Service Standards
SUBJECT
Distribution Construction
Processes
IV. SERVICE and METER CONNECTIONS
IV: 8 of21
FIGURE IV-4
Guide for Locating Point of Delivery on Outside of Building
Overhead Electric Supply
utility - ~ - - - - - - - - - - - - - - - - - - - - - - - - -
E~st.m~nL ::::-... _ _ _ _ ./'_ _ I ~ _U.!ld~rg,rQ.UlJ..d.f:l.~c!ri~~l2P~ _ _ _
~ . \ ,
Property / \ ,
Line I \ ,
1\,
\ OR uq'
~ Fence /
A ,
,
,
Preferred Point of'
Delivery Location "
(outside of fence) ,
,
------------"-
Utility ~ '"
Easement ,
Customer's B~g or
Residence
\
\
\
\
\
\
\
----------------~
Underground Secondary (URD)
\
\
\
---------------------
Street
NOTES:
1. Customer arranges for approval of Point of delivery by FPL.
2. Customer provides, without cost to FPL, suitable space on his premises for"
installation of FPL's metering and service facilities.
3. Customer provides easements for FPL's conductors and equipment at no COlt.
4. Any FPL-approved change from originally approved Point of Delivery wiI be in
accordance with a customer contribution based on any added cost to l"88Ch ..
new point of delivery.
5 ~~ pA-?t 3
@ 2004, Florida Power & Light Company
DATE
01-02-04
SECTION: PAGE
,~~
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:4
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I
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ARTICLE 11 r REQUIREMENTS FOR ELECTRICAL INST ALLA TI
II. 600 Volts, Nominal, or Less
~/ 110.26 Spaces About Electrical Equipment. Sufficient
If'- access and working space shall be provided and maintained
about all electric equipment to permit ready and safe opera-
tion and maintenance of such equipment. Enclosures hous-
ing electrical apparatus that are controlled by a lock(s) shall
be considered accessible to qualified persons.
1~0.18 Arci~g Parts. Parts of electric equipment that in or- $ (A) Working Space. Working space for equipment operat-
dinary operation produce arcs, sparks, flames, or molten metal I ing at 600 volts, nominal, or less to ground and likely to
shall be enclosed or separated and isolated from all combus- require examination, adjustment, servicing, or maintenance
tible material. while energized shall comply with the dimensions of
llO.26(A)(l), (A)(2), and (A)(3) or as required or permitted
elsewhere in this Code.
FPN No.1: NFPA 70E-2004, Standard for Electrical
Safety in the Workplace, provides assistance in determining
severity of potential exposure, planning safe work prac-
tices, and selecting personal protective equipment.
FPN No.2: ANSI Z535.4-1998, Product Safety Signs and
Labels, provides guidelines for the design of safety signs
and labels for application to products.
FPN: For hazardous (classified) locations, see Articles 500
through 517. For motors, see 430.14. .
110.19 Light and Power from Railway Conductors. Cir- t
cuits for lighting and power shall not be connected to any
system that contains trolley wires with a ground return.
Exception: Such circuit connections shall be permitted in
car houses, power houses, or passenger and freight stations
operated in connection with electric railways.
110.21 Marking. The manufacturer's name, trademark, or
other descriptive marking by which the organization re-
sponsible for the product can be identified shall be placed
on all electric equipment. Other markings that indicate volt-
age, current, wattage, or other ratings shall be provided as
specified elsewhere in this Code. The marking shall be of
sufficient durability to withstand the environment involved.
110.22 Identification of Disconnecting Means. Each dis-
connecting means shall be legibly marked to indicate its
purpose unless located and arranged so the purpose is evi-
dent. The marking shall be of sufficient durability to with-
stand the environment involved.
Where circuit breakers or fuses are applied in compliance
with the series combination ratings marked on the equipment
by the manufacturer, the equipment enc1osure(s) shall be leg-
ibly marked in the field to indicate the equipment has been
applied with a series combination rating. The marking shall be
readily visible and state the following:
CAUTION - SERIES COMBINATION SYSTEM
RATED AMPERES. IDENTIFIED
REPLACEMENT COMPONENTS REQUIRED.
FPN: See 240.86(B) for interrupting rating marking for
end-use equipment.
110.23 Current Transformers. Unused current transform-
ers associated with potentially energized circuits shall be
short-circuited.
70-36
i
(1) Depth of Working Space. The depth of the working
space in the direction of live parts shall not be less than that
specified in Table llO.26(A)(1)(1) unless the requirements
of 1l0.26(A)(l)(a), (A)(l)(b), or (A)(l)(c) are met. Dis-
tances shall be measured from the exposed live parts or
from the enclosure or opening if the live parts are enclosed.
Table llO.26(A)(1) Working Spaces
Nominal
Voltage to
Ground
Minimum Clear Distance
Condition 1
Condition 2
Condition 3
0-150
151-600
900 nun (3 ft) 900 nun (3 ft)
1.1 m (3V2 ft) 1.2 m (4 ft)
Note: Where the conditions are as follows:
Con itJon - Exposed live parts on one side of the working space
an no live or grounded parts on the other side of the working space,
or exposed live parts on both sides of the working space that are
effectively guarded by insulating materials.
Condition 2 - Exposed live parts on one side of the working space
and grounded parts on the other side of the working space. Concrete,
brick, or tile walls shall be considered as grounded.
Condition 3 - Exposed live parts on both sides of the working
space.
(a) Dead-Front Assemblies. Working space shall not
be required in the back or sides of assemblies, such as
dead-front switchboards or motor control centers, where all
connections and all renewable or adjustable parts, such as
fuses or switches, are accessible from locations other than
the back or sides. Where rear access is required to work on
nonelectrical parts on the back of enclosed equipment, a
minimum horizontal working space of 762 nun (30 in.)
shall be provided.
(b) Low Voltage. By special permission, smaller working
spaces shall be permitted where all exposed live parts operate
at not greater than 30 volts rms, 42 volts peak, or 60 volts de.
(c) Existing Buildings. In existing buildings where
electrical equipment is being replaced, Condition 2 working
clearance shall be permitted between dead-front switch-
"_../
NATIONAL ELECTRICAL CODE 2005 Edition
A~..--:LE !lO-REQUlREMENTS FOR ELECTRICAL INS'l~LLATIONS
110.26
-*:
boards, panelboards, or motor control centers located
across the aisle from each other where conditions of main-
tenance and supervision ensure that written procedures
have been adopted to prohibit equipment on both sides of
the aisle from being open at the same time and qualified
persons who are authorized will service the installation.
(2) Width of Working Space. The width of the working
space in front of the electric e u' ent shall be the width
of the equipment or 750 (30 in.) whichever is greater.
In all cases, the work space sha permit at least a 90 degree
opening of equipment doors or hinged panels.
(3) Height of Working Space. The work space shall be
clear and extend from the grade, floor, or platform to the
height required by 110.26(E). Within the height require-
ments of this section, other equipment that is associated
with the electrical installation and is located above or be-
low the electrical equipment shall be permitted to extend
not more than 150 mm (6 in.) beyond the front of the
electrical equipment.
(B) Clear Spaces. Working space required by this section
shall not be used for storage. When normally enclosed live
parts are exposed for inspection or servicing, the working
space, if in a passageway or general open space, shall be
suitably guarded.
(C) Entrance to Working Space.
(1) Minimum Required. At least one entrance of suffi-
cient area shall be provided to give access to working space
about electrical equipment.
(2) Large Equipment. For equipment rated 1200 amperes
or more that contains overcurrent devices, switching de-
vices, or control devices, there shall be one entrance to the
required working space not less than 610 mm (24 in.) wide
and 2.0 m (6V2 ft) high at each end of the working space.
Where the entrance has a personnel door(s), the door(s)
shall open in the direction of egress and be equipped with
panic bars, pressure plates, or other devices that are nor-
mally latched but open under simple pressure.
A single entrance to the required working space shall be
permitted where either of the conditions in 1l0.26(C)(2)(a)
or (C)(2)(b) is met.
(a) Unobstructed Exit. Where the location permits a
continuous and unobstructed way of exit travel, a single
entrance to the working space shall be permitted.
(b) Extra Working Space. Where the depth of the
working space is twice that required by 1l0.26(A)(1), a
single entrance shall be permitted. It shall be located so that
the distance from the equipment to the nearest edge of the
entrance is not less than the minimum clear distance speci-
fied in Table 1l0.26(A)(1) for equipment operating at that
voltage and in that condition.
2005 Edition NATIONAL ELECTRICAL CODE
(D) TIlumination. Illumination shall be provided for all
working spaces about service' equipment, switchboards,
panelboards, or motor control centers installed indoors. Ad-
ditional lighting outlets shall not be required where the
work space is illuminated by an adjacent light source or as
permitted by 21O.70(A)(1), Exception No.1, for switched
receptacles. In electrical equipment rooms, the illumination __.__
shall not be controlled by automatic means only.
"
(E) Headroom. The minimum headroom of working
spaces about service equipment, switchboards, panelboards,
or motor control centers shall be 2.0 m (6V2 ft). Where the
electrical equipment exceeds 2.0 m (61/2 ft) in height, the
minimum headroom shall not be less than the height of the
equipment.
Exception: In existing dwelling units, service equipment
or panelboards that do not exceed 200 amperes shall be
permitted in spaces where the headroom is less than 2.0 m
(61/2 ft).
(F) Dedicated Equipment Space. All switchboards, panel-
boards, distribution boards, and motor control centers shall be
located in dedicated spaces and protected from damage.
Exception: Control equipment that by its very nature or
because of other rules of the Code must be adjacent to or
within sight of its operating machinery shall be permitted
in those locations.
(1) Indoor. Indoor installations shall comply with
11O.26(F)(I)(a) through (F)(1)(d).
(a) Dedicated Electrical Space. The space equal to the
width and depth of the equipment and extending from the
floor to a height of 1.8 m (6 ft) above the equipment or to
the structural ceiling, whichever is lower, shall be dedicated
to the electrical installation. No piping, ducts, leak protec-
tion apparatus, or other equipment foreign to the electrical
installation shall be located in this zone.
Exception: Suspended ceilings with removable panels shall
be permitted within the I.8-m (6-ft) zone.
(b) Foreign Systems. The area above the dedicated
space required by 11O.26(F)(1)(a) shall be permitted to con-
tain foreign systems, provided protection is installed to
avoid damage to the electrical equipment from condensa-
tion, leaks, or breaks in such foreign systems.
(c) Sprinkler Protection. Sprinkler protection shall be
permitted for the dedicated space where the piping com-
plies with this section.
(d) Suspended Ceilings. A dropped, suspended, or simi-
lar ceiling that does not add strength to the building structure
shall not be considered a structural ceiling.
70-37
110..27
"""~
ARTICLE 111., - REQUIREMENTS FOR ELECTRICAL INSTALLATIONS
/ ~~ Ouldoo, elecrrical "'luipment ,hall be in-
':--:lled in suitable enclosures and shall be protected from
accidental contact by unauthorized personnel, or by vehicu-
lar traffic, or by accidental spillage or leakage from piping
systems. The working clearance space shall include the
zone described in 110.26(A). No architectural appurtenance
or other eq~ipment shall be located in this zone.
110.27 Guarding of Live 'Parts.
(A) Live Parts Guarded Against Accidental Contact.
Except as elsewhere required or permitted by this Code,
live parts of electrical equipment operating at 50 volts or
more shall be guarded against accidental contact by ap-
proved enclosures or by any of the following means:
(1) By location in a room, vault, or similar enclosure that is
accessible only to qualified persons.
(2) By suitable permanent, substantial partitions or screens
arranged so that only qualified persons have access to
the space within reach of the live parts. Any openings
in such partitions or screens shall be sized and located
so that persons are not likely to come into accidental
contact with the live parts or to bring conducting ob-
jects into contact with them.
(3) By location on a suitable balcony, gallery, or platform
elevated and arranged so as to exclude unqualified per-
sons.
(4) By elevation of 2.5 m (8 ft) or more above the floor or
other working surface.
(B) Prevent Physical Damage. In locations where electric
equipment is likely to be exposed to physical damage, en-
closures or guards shall be so arranged and of such strength
as to prevent such damage.
(C) Warning Signs. Entrances to rooms and other guarded
locations that contain exposed live parts shall be marked
with conspicuous warning signs forbidding unqualified per-
sons to enter.
FPN: For motors, see 430.232 and 430.233. For over
600 volts, see 110.34.
III. Over 600 Volts, Nominal
110.30 General. Conductors and equipment used on cir-
cuits over 600 volts, nominal, shall comply with Part I of
this article and with the following sections, which supple-
ment or modify Part I. In no case shall the provisions of
this part apply to equipment on the supply side of the ser-
vice point.
110.31 Enclosure for Electrical Installations. Electrical in-
stallations in a vault, room, or closet or in an area surrounded
by a wall, screen, or fence, access to which is controlled by a
70-38
lock(s) or other approved means, shall be considered to be
accessible to qualified persons only. The type of enclosure
used in a given case shall be designed and constructed accord-
ing to the nature and degree of the hazard(s) associated with
the installation.
For installations other than equipment as described in
110.31(D), a wall, screen, or fence shall be used to enclose
an outdoor electrical installation to deter access by persons
who are not qualified. A fence shall not be less than 2.1 m
(7 ft) in height or a combination of 1.8 m (6 ft) or more of
fence fabric and a 300-mm (I-ft) or more extension utiliz-
ing three or more strands of barbed wire or equivalent. The
distance from the fence to live parts shall be not less than
given in Table 110.31.
Table 110.31 Minimum Distance from Fence to Live Parts
Minimum Distance to Live Parts
Nominal Voltage
m
ft
601 - 13,799
13,800 - 230,000
Over 230,000
3.05
4.57
5.49
10
15
18
Note: For clearances of conductors for specific system voltages and typi-
cal BIL ratings, see ANSI C2-2002, National Electrical Safety Code.
FPN: See Article 450 for construction requirements for
transformer vaults.
(A) Fire Resistivity of Electrical Vaults. The walls, roof,
floors, and doorways of vaults containing conductors and
equipment over 600 volts, nominal, shall be constructed of
materials that have adequate structural strength for the con-
ditions, with a minimum fire rating of 3 hours. The floors of
vaults in contact with the earth shall be of concrete that is
not less than 4 in. (I02 mm) thick, but where the vault is
constructed with a vacant space or other stories below it,
the floor shall have adequate structural strength for the load
imposed on it and a minimum fire resistance of 3 hours. For
the purpose of this section, studs and wallboards shall not
be considered acceptable.
'-.
(B) Indoor Installations.
(1) In Places Accessible to Unqualified Persons. Indoor
electrical installations that are accessible to unqualified per-
sons shall be made with metal-enclosed equipment. Metal-
enclosed switchgear, unit substations, transformers, pull
boxes, connection boxes, and other similar associated
equipment shall be marked with appropriate caution signs.
Openings in ventilated dry-type transformers or similar
openings in other equipment shall be designed so that for-
eign objects inserted through these openings are deflected
from energized parts.
"---"
NATIONAL ELECTRICAL CODE 2005 Edition
Nee
ARTICLE 230 - SERVICES
230.24
~
(4) Where installed in conduit and under not less than
450 mm (18 in.) of earth beneath a building or other
structure
230.7 Other Conductors in Raceway or Cable. Conduc-
tors other than service conductors shall not be installed in
the same service raceway or service cable.
Exception No.1: Growuling conductors and bonding jumpers.
Exception No.2: Load management control conductors
having overcurrent protection.
230.8 Raceway Seal. Where a service raceway enters a
building or structure from an underground distribution sys-
tem, it shall be sealed in accordance with 300.5(G). Spare
or unused raceways shall also be sealed. Sealants shall be
identified for use with the cable insulation, shield, or other
components.
230.9 Clearances on Buildings. Service conductors and
final spans shall comply with 230.9(A), (B), and (C).
(A) Clearances. Service conductors installed as open con-
ductors or multiconductor cable without an overall outer
jacket shall have a clearance of not less than 900 mm (3 ft)
from windows that are designed to be opened, doors, porches,
balconies, ladders, stairs, fire escapes, or similar locations.
Exception: Conductors run above the top level of a win-
dow shall be permitted to be less than the 900-mm (3-ft)
requirement.
(B) Vertical Clearance. The vertical clearance of final
spans above, or within 900 mm (3 ft) measured horizontally
of, platforms, projections, or surfaces from which they might
be reached shall be maintained in accordance with 230.24(B).
(C) Building Openings. Overhead service conductors
shall not be installed beneath openings through which ma-
terials may be moved, such as openings in farm and com-
mercial buildings, and shall not be installed where they
obstruct entrance to these building openings.
230.10 Vegetation as Support. Vegetation such as trees
shall not be used for support of overhead service conductors.
II. Overhead Service-Drop Conductors
230.22 Insulation or Covering. Individual conductors
shall be insulated or covered.
Exception: The grounded conductor of a multiconductor
cable shall be permitted to be bare.
230.23 Size and Rating.
(A) General. Conductors shall have sufficient ampacity to
carry the current for the load as calculated in accordance with
Article 220 and shall have adequate mechanical strength.
2005 Edition NATIONAL ELECTRICAL CODE
(B) Minimum Size. The conductors shall not be smaller
than 8 AWG copper or 6 AWG aluminum or copper-clad
aluminum.
Exception: Conductors supplying only limited loads of a
single branch circuit - such as small polyphase power,
controlled water heaters, and similar loads - shall not be
smaller than 12 A WG hard-drawn copper or equivalent.
(C) Grounded Conductors. The grounded conductor shall
not be less than the minimum size as required by 250.24(C).
230.24 Clearances. Service-drop conductors shall not be
readily accessible and shall comply with 230.24(A) through
(D) for services not over 600 volts, nominal.
(A) Above Roofs. Conductors shall have a vertical clear-
ance of not less than 2.5 m (8 ft) above the roof surface.
The vertical clearance above the roof level shall be main-
tained for a distance of not less than 900 mm (3 ft) in all
directions from the edge of the roof.
Exception No.1: The area above a roof surface subject to
pedestrian or vehicular traffic shall have a vertical clear-
ance from the roof surface in accordance with the clear-
ance requirements of 230. 24(B).
Exception No.2: Where the voltage between conductors
does not exceed 300 and the roof has a slope of 100 mm in
300 mm (4 in. in 12 in.) or greater, a reduction in clearance
to 900 mm (3 ft) shall be permitted.
Exception No.3: Where the voltage between conductors
does not exceed 300, a reduction in clearance above only
the overhanging portion of the roof to not less than 450 mm
(18 in.) shall be permitted if(l) not more than 1.8 m (6ft)
of service-drop conductors, 1.2 m (4 ft) horizontally, pass
above the roof overhang, and (2) they are terminated at a
through-the-roof raceway or approved support.
~
FPN: See 230.28 for mast supports.
Exception: The requirement for maintaining the vertical
clearance 900 mm (3 ft) from the edge of the roof shall not
apply to the final conductor span where the service drop is
attached to the side of a building.
(B) Vertical Clearance from Ground. Service-drop con-
ductors, where not in excess of 600 volts, nominal, shall
have the following minimum clearance from final grade:
(1) 3.0 m (10 ft) - at the electric service entrance to
buildings, also at the lowest point of the drip loop of
the building electric entrance, and above areas or side-
walks accessible only to pedestrians, measured from
final grade or other accessible surface only for service-
drop cables supported on and cabled together with a
grounded bare messenger where the voltage does not
exceed 150 volts to ground
70-73
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BUII..DING PLANNING
TABLE R301.5
MINIMUM UNIFORMLY DISTRIBUTED LIVE LOADS
(In pounds per square foot)
USE LIVE LOAD
Attics with storageb 20
Attics without storageb 10
Decks. 40
Exterior balconies 60
Fire escapes 40
Guardrails and handrailsd 200
Guardrails in-fill componentsf 50
Passenger vehicle garages' 50'
Rooms other than sleeping rooms 40
Sleeping rooms 30
Stairs 40.
For SI: 1 pound per square foot = 0.0479 kN/m2, 1 square inch = 645 mm2,
1 pound = 4,45 N.
a. Elevated garage floors shall be capable of supporting a 2,OOO-pound load
applied over a 20-square-inch area.
b. No storage with roof slope not over 3 units in 12 units.
c. Individual stair treads shall be designed for the uniformly distributed live
load or a 300-pound concentrated load acting over an area of 4 square
inches, whichever produces the greater stresses.
d. A single concentrated load applied in any direction at any point along the
top.
e. See Section R502.2.1 for decks attached to exterior walls.
f. Guard in-fill components (all those except the handrail), balusters and panel
fillers shall be designed to withstand a horizontally applied normal load of
50 pounds on an area equal to I square foot. This load need not be assumed to
act concurrently with any other live load requirement.
R301.6 Roof load. Roof shall be designed for the live load in-
II dicated in Table R30l.6.
TABLE R301.6
MINIMUM ROOF LIVE LOADS IN POUNDS-FORCE
PER SQUARE FOOT OF HORIZONTAL PROJECTION
TRIBUTARY LOADED AREA IN
SQUARE FEET FOR. ANY
STRUCTURAL MEMBER
ROOF SLOPE o to 200 201 to 600 Over 600
Flat or rise less than 4 inches per 20 16 12
foot (1 :3)
Rise 4 inches per foot (1 :3) to 16 14 12
less than 12 inches ner foot (1 : 1 )
Rise 12 inches per foot (1: 1) 12 12 12
and greater
For SI: 1 square foot = 0.0929 m2, 1 pound per square foot = 0,0479 kN/m2,
1 inch per foot = 0.0833 mm1m.
R301.7 Deflection. The allowable deflection of any structural
member under the live load listed in Sections R301.5 and
R301.6 shall not exceed the values in Table R301.7.
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TABLE R301.7
ALLOWABLE DEFLECTION OF STRUCTURAL MEMBERSl,b,c
ALLOWABLE
STRUCTURAL MEMBER DEFLECTION
Rafters having slopes greater than 3/12 with no U180
finished ceiling attached to rafters
Interior walls and partitions H/180
Roors and nlastered ceilings U360
All other structural members U240
Exterior walls with plaster or stucco finish H/360
Exterior walls-wind loads' with brittle finishes U240
Exterior walls-wind loads' with flexible finishes U120
Note: L = span length, H = span height.
a. The wind load shall be permitted to be tak:en as 0.7 times the Component and
Cladding loads for the purpose of the determining deflection limits herein.
b. For cantilever members, L shall be taken as twice the length of the cantilever.
c, For aluminum structural members or panels used in roofs or walls of sun-
room additions or patio covers, not supporting edge of glass or sandwich
panels, the total load deflection shall not exceed L /60. For sandwich panels
used in roofs or walls of sunroom additions or patio covers, the total load de-
flection shall not exceed U120.
R301.8 Nominal sizes. For the purposes of this code, where di-
mensions of lumber are specified, they shall be deemed to be
nominal dimensions unless specifically designated as actual di-
mensions.
SECTION R302
LOCATION ON LOT
R302.1 Exterior walls. Exterior walls separated by less than 6
feet (1828 mm) shall have not less than a one-hour fire-resistive
rating with exposure from both sides. Projections shall not ex-
tend to a point closer than 4 feet (1220 mm) from an adjacent
projection or wall.
Exception: Detached garages accessory to a dwelling lo-
cated within 2 feet (610 mm) of a lot line shall be permitted
to have roof eave projections not exceeding 4 inches (102
mm).
Projections extending into the 6-foot (1829 mm) separation
distance shall have not less than I-hour fire-resistive construc-
tion on the underside. The above provisions shall not apply to
walls which are perpendicular to a line extending from the
point from which the separation distance has been measured
running and parallel to the property line.
Exception: Tool and storage sheds, playhouses and similar
structures are not required to provide wall protection based
on location on the lot.
R302.2 Openings. Openings shall not be permitted in the exte-
rior wall of a dwelling or accessory building that is separated
from an adjacent building by a distance ofless than 6 feet (1828
FLORIDA BUILDING CODE RESIDENTIAL
mm). This distance shall be measured perpendicular to the line
used to determine the separation distance.
Exceptions:
1. Openings shall be permitted in walls that are perpen-
dicular to a line extending from the point from which
the separation distance has been measured running
. and parallel to the property line.
2. Foundation vents installed in compliance with this
code are permitted.
R302.3 Penetrations. Penetrations located in the exterior wall
of a dwelling separated by less than 6 feet (1828 mm) shall be
protected in accordance with Section R317.3.
Exception: Penetrations shall be permitted in walls that are
perpendicular to a line extending from the point which the
separation distance distance has been measured running and
parallel to the property line.
SECTION R303
LIGHT, VENTILATION AND HEATING
R303.1 Habitable rooms. All habitable rooms shall be
provided with aggregate glazing area of not less than 8 percent
of the floor area of such rooms. Natural ventilation shall be
through windows, doors, louvers or other approved openings to
the outdoor air. Such openings shall be provided with ready ac-
cess or shall otherwise be readily controllable by the building
occupants. The minimum openable area to the outdoors shall
be 4 percent of the floor area being ventilated.
Exceptions:
1. The glazed areas need not be openable where the
opening is not required by Section R310 and an ap-
proved mechanical ventilation system is provided ca-
pable of producing 0.35 air change per hour in the
room or a whole-house mechanical ventilation system
is installed capable of supplying outdoor ventilation
air of 15 cubic feet per minute (cfm) (7.08 Us) per oc-
cupant computed on the basis of two occupants for the
first bedroom and one occupant for each additional
bedroom.
2. The glazed areas need not be provided in rooms where
Exception 1 above is satisfied and artificial light is
provided capable of producing an average illumina-
tion of 6 footcandles (6.46 lux) over the area of the
room at a height of 30 inches (762 mm) above the
floor level.
R303.2 Adjoining rooms. For the purpose of determining
light and ventilation requirements, any room shall be consid-
ered as a portion of an adjoining room when at least one-half of
the area of the common wall is open and unobstructed and pro-
vides an opening of not less than one-tenth of the floor area of
the interior room but not less than 25 square feet (2.32 m2).
Exception: Openings required for light and/or ventilation
shall be permitted to open into a thermally isolated sunroom
addition or patio cover, provided that there is an openable
area between the adjoining room and the sunroom addition
or patio cover of not less than one-tenth of the floor area of
the interior room but not less than 20 square feet (1.86 m2).
FLORIDA BUILDING CODE - RESIDENTIAL
BUILDING PLANNING
The minimum openable area to the outdoors shall be based
upon the total floor area being ventilated.
R303.3 Bathrooms. Bathrooms, water closet compartments
and other similar rooms shall be provided with aggregate glaz-
ing area in windows of not less than 3 square feet (0.279 m2),
one-half of which must be openable.
Exception: The glazed areas shall not be required where ar-
tificiallight and a mechanical ventilation system are pro-
vided. The minimum ventilation rates shall be 50 cfm (23.6
Us) for intermittent ventilation or 20 cfm (9.4 Us) for con-
tinuous ventilation. Ventilation air from the space shall be
exhausted directly to the outside.
R303.4 Opening location. Outdoor intake and exhaust open-
ings shall be located in accordance with Sections R303.4.1 and
R303.4.2.
R303.4.1 Intake openings. Mechanical and gravity out-
door air intake openings shall be located a minimum of 10
feet (3048 mm) from any hazardous or noxious contami-
nant, such as vents, chimneys, plumbing vents, streets, al-
leys, parking lots and loading docks, except as otherwise
specified in this code. Where a source of contaminant is lo-
cated within 10 feet (3048 mm) of an intake opening, such
opening shall be located a minimum of 2 feet (610 mm) be-
low the contaminant source.
For the purpose of this section, the exhaust from dwelling
unit toilet rooms, bathrooms and kitchens shall not be con-
sidered as hazardous or noxious.
R303.4.2 Exhaust openings. Outside exhaust openings
shall be located so as not to create a nuisance. Exhaust air
shall not be directed onto walkways.
R303.5 Outside opening protection. Air exhaust and intake
openings that terminate outdoors shall be protected with
corrosion-resistant screens, louvers or grilles having a mini-
mum opening size of 1/4 inch (6.4 mm) and a maximum open-
ing size ofl/2 inch (12.7 mm), in any dimension. Openings shall
be protected against local weather conditions. Outdoor air ex-
haust and intake openings shall meet the provisions for exterior
wall opening protectives in accordance with this code.
R303.6 Stairway illumination. All interior and exterior stair-
ways shall be provided with a means to illuminate the stairs, in-
cluding the landings and treads. Interior stairways shall be
provided with an artificial light source located in the immediate
vicinity of each landing of the stairway. For interior stairs the ar-
tificiallight sources shall be capable of illuminating treads and
landings to levels not less than 1 foot-candles (11 lux) measured
at the center of treads and landings. Exterior stairways shall be
provided with an artificial light source located in the immediate
vicinity of the top landing of the stairway. Exterior stairways
providing access to a basement from the outside grade level shall
be provided with an artificial light source located in the immedi-
ate vicinity of the bottom landing of the stairway.
Exception: An artificial light source is not required at the
top and bottom landing, provided an artificial light source is
located directly over each stairway section.
R303.6.1 Light activation. The control for activation of the
required interior stairway lighting shall be accessible at the
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