N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 8-1.58

Current through Register Vol. 46, No. 45, November 2, 2024

Section 8-1.58 - Electric wiring

(a) All conductors in the hoistway or on the car connected with interlocks or electric contacts shall be run in approved metallic rigid conduits terminating in drilled or tapped fittings rigidly secured and provided with approved terminal bushings. Conduits shall be not less than one-half inch internal diameter. All conduits shall be permanently and effectively grounded by the use of approved ground clamps. All conductors shall be rubber-covered and braided National Electric Code standard. Wiring in all systems shall be installed after the manner prescribed under National Electric Code rules as applying to conduit installation.

(b) All electric parts of interlocking equipment shall be governed by the following standards for breaking distances, voltage, etc.:

(1) Breaking distances shall be not less than three-eighths inch for 110 volts or less, not less than one-half inch for 220 volts or less, and not less than three-fourths inch for 440 to 550 volts or less.

(2) Contacts shall carry current of an intensity of not more than 100 amperes per square inch.

(3) Dielectric strength of insulating material shall not be less than one megohm, and the inside of all contact switch boxes where metal is used shall be thoroughly protected by a suitable noncombustible and non-absorptive insulation wherever it would be possible, through a loose connection to ground the system.

N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 8-1.58