Windsor-Severence Fire Protection District
Heavy Rescue
Production Specification
SVI #774 Page 122 of 126 April 19, 2010
Where the power source is 120/240 V and 120 V loads are connected, the apparatus manufacturer or line voltage system
installer shall consider load balancing to the extent that it is possible.
Wiring Methods
Fixed wiring systems shall be limited to the following:
1. Metallic or nonmetallic liquid tight flexible conduit rated at temperatures not less than 194°F (90°C) with stranded
copper wire rated for wet locations and temperatures not less than 194°F (90°C)
2. Type SOW, SOOW, SEOW, or SEOOW flexible cord rated at 600 V and at temperatures not less than 194°F
(90°C)
Electrical cord or conduit shall not be attached to chassis suspension components, water or fuel lines, air or air brake
lines, fire pump piping, hydraulic lines, exhaust system components, or low voltage wiring and shall be arranged as
follows:
1. Separated by a minimum distance of 12 in. (300 mm) from exhaust piping or shielded from such piping
2. Separated from fuel lines by a minimum distance of 6 in. (150 mm)
A means shall be provided to allow “flexing” between the driving and crew compartment, the body, and other areas or
equipment whose movement would stress the wiring.
Electrical cord or conduit shall be supported within 6 in. (150 mm) of any junction box and at a minimum of every 24 in.
(600 mm) of run.
Supports shall be made of nonmetallic materials or of corrosion-resistant or corrosion-protected metal. All supports shall
be of a design that does not cut or abrade the conduit or cord and shall be mechanically fastened to the apparatus.
Only fittings and components listed for the type of cord or conduit being installed shall be used.
Splices shall be made only in a listed junction box.
Additional Requirements for Flexible Cord Installations
Where flexible cord is used in any location where it could be damaged, it shall be protected by installation in conduit,
enclosures, or guards.
Where flexible cord penetrates a metal surface, rubber or plastic grommets or bushings shall be installed.
Wiring Identification
Each line voltage circuit originating from the main panelboard shall be identified.
The wire or circuit identification either shall reference a wiring diagram or wire list or shall indicate the final termination
point of the circuit.
Where pre-wiring for future power sources or devices exists, the un-terminated ends shall be marked with a label showing
their wire size and intended function.
(112 paginas)
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