New Jersey Administrative Code
Title 12 - LABOR AND WORKFORCE DEVELOPMENT
Chapter 185 - PITS AND QUARRIES (SAFETY REGULATION NUMBER 12)
Subchapter 23 - ELECTRICAL EQUIPMENT
Section 12:185-23.2 - Transformers

(a) Unless transformers are placed on poles or platforms at least 15 feet above ground level, they shall be enclosed in a transformer house or surrounded by a suitable wire fence at least six feet high which shall be effectively grounded.

(b) Transformers shall be so located and arranged as to minimize possible life and fire hazards. Oil transformers located indoors shall be installed in a vault of fireproof construction, ventilated and well lighted.

(c) When oil transformers are installed outdoors, they shall be located in an area free from combustible material, and shall be provided with a positive means to confine transformer oil in case of fire or explosion.

(d) Circuits leaving the transformers shall be protected by a switch and an automatic overload circuit breaker. Fuses may be substituted for the circuit breakers in lighting circuits.

(e) Casings of all transformers that are within 15 feet of the ground shall be effectively grounded.

(f) All transformer stations shall be kept locked against unauthorized entry.

(g) "Danger--High Voltage" signs shall be posted conspicuously on all transformer enclosures.

(h) Material shall not be stored in the transformer area or vault.

(i) All transformer stations shall be equipped with a dry, insulated stick or equally safe method of operating disconnecting switches.