Section 575 IAC 1-2.5-57 - WiringAuthority: IC 20-27-3-4
Affected: IC 20-27-9
Sec. 57.
(a) All wiring must conform to current SAE standards.(b) Wiring must be arranged in at least eight (8) regular circuits using the following combinations: (1) Head, tail, brake, and instrument panel lights.(2) Clearance and step-well lamps. The step-well lamp must turn on when the service door is opened.(4) Emergency door signal.(6) Alternately flashing signal lamps. Any of the above combination circuits may be subdivided into additional independent circuits.
(c) At least one (1) additional circuit must be installed if a heater and defrosters are used. All other electrical functions, such as optional equipment, must have independent and properly protected circuits. Each circuit, except the starter motor and ignition circuits, must have a separate fuse or circuit breaker.(d) Each body circuit must be coded by number, letter, or color. A diagram of the circuits must be attached to the body in an accessible location.(e) All wires within the body must be insulated with a covering of fibrous loom or its equivalent that will protect them from external damage and minimize the danger of short circuiting. Whenever wires pass through body members, an insert must provide additional protection. Wires not enclosed within the body shell must be fastened securely at intervals of not more than 24 inches. All joints must be soldered or joined by connectors. State School Bus Committee; 575 IAC 1-2.5-57; filed Jun 20, 1988, 8:50 am: 11 IR 3855; readopted filed Oct 10, 2001, 3:37 p.m.: 25 IR 938; readopted filed Jun 19, 2007, 10:10 a.m.: 20070704-IR-575070225RFA; readopted filed Nov 12, 2013, 11:21 a.m.: 20131211-IR-575130420RFA