New Jersey Administrative Code
Title 13 - LAW AND PUBLIC SAFETY
Chapter 20 - ENFORCEMENT SERVICE
Subchapter 50B - BODY STANDARDS FOR SCHOOL BUSES
Section 13:20-50B.49 - Wiring
Current through Register Vol. 56, No. 6, March 18, 2024
(a) All wiring shall conform to SAE Recommended Practice J1292 (October 1981), incorporated herein by reference, as amended and supplemented. Multiplex wiring may be used.
(b) Wiring shall be arranged in circuits as required with each circuit protected by a fuse, circuit breaker, or field effect transistor. One extra fuse for each size fuse that is used on the school bus shall be conveniently located in the fuse area unless the school bus is equipped with circuit breakers or field effect transistors. A system of color and number coding shall be used.
Function | Color |
Left Rear Turn Signal Light | Yellow |
Right Rear Turn Signal Light | Dark Green |
Stoplights | Red |
Back-Up Lights | Blue |
Taillights | Brown |
Ground | White |
Iginition Feed, Primary Feed | Black |
(c) The entire electrical system of the school bus body shall be designed for the same voltage as the chassis on which the school bus body is mounted.
(d) All wiring shall have an amperage capacity exceeding the designed load by at least 25 percent. All wiring splices shall be in an accessible location and shall be noted as splices on the wiring diagram.
(e) An easily readable body wiring diagram shall be furnished with each school bus body or affixed in an area convenient to the electrical accessory control panel.
(f) The main power supply to the body shall be attached to a terminal on the chassis.
(g) Wires passing through metal openings shall be protected by a grommet.
(h) Wires not enclosed within the body shall be fastened securely at intervals of not more than 18 inches. All joints shall be soldered or joined by equally effective connectors so that no connectors are exposed.
(i) Buses manufactured in February 2012 or later shall have a heavy-duty solenoid switch or electronic control system in the main electrical power supply line to the body circuits on each Type A, B, C, and D school bus. The solenoid switch shall be energized by the school bus ignition switch. Hazard and turn signal lamp circuits shall operate independently of the ignition switch.