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2.6.4
CONDUIT
Route the connections between the generator and the
junction box through approved, flexible conduit. The
following general rules apply:
• All wiring, conduit, and interconnections must
be installed in compliance with applicable codes,
standards, and regulations.
• Cut wiring to the required length, and allow extra
wire for junction box connections.
• Carefully prepare conduit ends to prevent sharp
edges from cutting through wiring insulation.
• Route conduit so it does not interfere with genera-
tor movement.
• If using metallic conduit, vapor-seal the end of the
conduit where it enters the junction box. Do this
because flexible metallic conduit is not vapor proof
along its entire length.
• All openings in the generator compartment for the
passage of wiring and conduit must be sealed and
made vapor-tight.
Use a high-quality silicone rubber base sealant or
other approved method (such as, explosion-proof
fittings) to seal such openings.
32
Section 2 – Installation
Recreational Vehicle Generator
NOTE:
Figure 2.17 – Transfer Switch Isolation Method
2.6.5
POWER SUPPLY CORD
The power supply cord must comply with all appli-
cable codes, standards, and regulations. It must be
large enough to handle the full amperage to which it
will be subjected.
2.6.6
GROUND FAULT CIRCUIT
INTERRUPTERS
The National Electrical Code (NFPA 70, 551-7)
requires that ground-fault circuit interrupters (GFCIs)
be installed on all external and some internal electri-
cal receptacles. Contact the manufacturer or dealer
for recommendations.
2.6.7
ISOLATING DIFFERENT POWER
SOURCES
Connections from the junction box must terminate in
a double-pole, double-throw transfer switch (Figure
2.17). An alternate method for isolating different
power sources includes using an isolating receptacle
(Figure 2.18). Whichever method is used, be certain
that both power sources are NOT connected at the
same time.
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