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14
Requirements:
NFPA 37 2010, section 4. 1. 4, Engines Located Outdoors.
Engines, and their weatherproof housings if provided, that
are installed outdoors shall be located at least 1.5m (5 ft)
from openings in walls and at least 1.5 m (5 ft) from structures
having combustible walls. A minimum separation shall not be
required where either of the following conditions exist:
1. The adjacent wall of the structure has a fire
resistance rating of at least 1 hour.
2. The weatherproof enclosure is constructed
of noncombustible materials and it has been
demonstrated that a fire within the enclosure will not
ignite combustible materials outside the enclosure. *
Annex A Explanatory Material
A.4.1.4 (2) Means of demonstrating compliance are by
means of full-scale fire tests or by calculation procedures,
such as those given in NFPA 555, Guide on Methods for
Evaluating Potential for Room Flashover.
To comply with condition 2, the weatherproof enclosure
has been constructed completely of non-combustible
materials and full-scale fire tests have been conducted to
demonstrate that a fire within the enclosure will not ignite
combustible materials outside the enclosure.
National Fire Protection Association (NFPA) Standard NFPA 37 Requirements and Testing
• Place the standby generator in a prepared location
that is flat and has provisions for water drainage.
• Install the standby generator in a location where
sump pump discharge, rain gutter down spouts, roof
run-off, landscape irrigation, or water sprinklers will
not flood the unit or spray the enclosure and enter
any air inlet or outlet openings.
• Install the standby generator where it will not
affect or obstruct any services (including covered,
concealed and underground), such as telephone,
electric, fuel (natural gas / LPG vapor), irrigation, air
conditioning, cable, septic, sewer, well and so forth.
• Install the standby generator where leaves, grass,
snow, etc will not obstruct air inlet and outlet
openings. If prevailing winds will cause blowing or
drifting, you may need to construct a windbreak to
protect the unit.
Other Location Requirements
Not for
Reproduction
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