Specifications

SVI Trucks
Freightliner 4-Door Demo
SVI #917 01/05/15
73
Bonding
The neutral conductor of the power source shall be bonded to the vehicle frame. The neutral bonding connection
shall occur only at the power source. In addition to the bonding required for the low voltage return current, each
body and each driving or crew compartment enclosure shall be bonded to the vehicle frame by a copper
conductor.
The conductor shall have a minimum amperage rating, as defined in 310.15, “Ampacities for Conductors Rated
0–2000 Volts,” of NFPA 70, of 115 percent of the rated amperage on the power source specification label.
A single conductor that is sized to meet the low voltage and line voltage requirements shall be permitted to be
used.
Ground Fault Circuit Interrupters
In special service vehicles incorporating a lavatory, sink, toilet, shower, or tub, 120 V, 15 or 20 A receptacles
within 6 ft (1.8 m) of these fixtures shall have ground fault circuit interrupter (GFCI) protection. GFCIs integrated
into outlets or circuit breakers or as stand-alone devices shall be permitted to be used in situations.
Power Source General Requirements
All power source system mechanical and electrical components shall be sized to support the continuous duty
nameplate rating of the power source.
The power source shall be shielded from contamination that would prevent the power source from operating
within its design specifications.
Power Source Rating
For power sources of 8 kW or larger, the power source manufacturer shall declare the continuous duty rating that
the power source can provide when installed on fire apparatus according to the manufacturer’s instructions and
run at 120°F (49°C) air intake temperature at 2000 ft (600 m) above sea level.
The rating on the power source specification label shall not exceed the declared rating from the power source
manufacturer.
Access shall be provided to permit both routine maintenance and removal of the power source for major servicing.
The power source shall be located such that neither it nor its mounting brackets interfere with the routine
maintenance of the fire apparatus.