shall be provided. Permanently attached power supply cable(s) shall be provided with a means to de-energize the cable conductors and power service delivery device upon exposure to strain that could result in either cable

damage or separation from the power service delivery device and exposure of live parts.

626.24 Electrified Truck Parking Space Supply Equip ment Connection Means.

(A) General. Each truck shall be supplied from electrified truck parking space supply equipment through suitable extra-hard service cables or cords. Each connection to the equipment shall be by a single separable power supply cable assembly.

(B) Receptacle. All receptacles shall be listed and of the grounding type. Every truck parking space with electrical supply shall be equipped with (B)(1) and (B)(2).

(1) Two single receptacles, each 2-pole, 3-wire grounding type, rated 20 amperes, 125 volts, and connected to an individual branch circuit.
FPN: For the nonlocking-type and grounding-type 20- ampere receptacle configuration, see ANSI/NEMA WD6- 2002, Standard for Dimensions of Attachment Plugs

and Receptacles, Figure 5-20.

(2) One single receptacle, 3-pole, 4-wire grounding- type, single-phase rated either 30 amperes
208Y/120 volts or 125/250 volts. The 125/250-volt receptacle shall be permitted to be used on a
208Y/120-volt, single-phase circuit.
FPN: For various configurations of 30-ampere pin and sleeve receptacles, see ANSI/UL1686, Standard for Pin and Sleeve Configurations, Figure C2.9 or Part C3.

Exception: Where electrified truck parking space supply equipment provides the air-conditioning and comfort cooling function without requiring a direct electrical connection at the truck, only the two receptacles identified in 626.24(B)(1) shall be required.

(C) Disconnecting Means, Parking Space. The electrified truck parking space supply equipment shall be provided with a switch or circuit breaker for disconnecting the power supply to the electrified truck parking space. A disconnecting means shall be provided and installed in a readily accessible location and shall be capable of being locked in the open position. Portable means for adding a lock to the switch or circuit breaker shall not be permitted as the means required to be installed at and remain with the equipment.

(D) Ground-Fault Circuit-Interrupter Protection for Personnel. The electrified truck parking space equipment shall be designed and constructed such that all receptacle outlets in 626.24 are provided with ground-fault circuit-interrupter protection for personnel.

626.25 Separable Power-Supply Cable Assembly. A separable power-supply cable assembly, consisting of a power-supply cord, a cord connector, and an attachment plug intended for connection with a truck flanged surface inlet, shall be of a listed type. The power-supply cable assembly or assemblies shall be identified and be one of the types and ratings specified in 626.25(A) and (B). Cords with adapters and pigtail ends, extension cords, and similar items shall not be used.

(A) Rating(s).

(1) Twenty-Ampere Power-Supply Cable Assembly.

Equipment with a 20-ampere, 125-volt receptacle, in accordance with 626.24(B)(1), shall use a listed 20- ampere power-supply cable assembly.

Exception: It shall be permitted to use a listed separable power-supply cable assembly, either hard service or extra-hard service and rated 15 amperes, 125 volts for connection to an engine block heater for existing vehicles.

(2) Thirty-Ampere Power-Supply Cable Assembly.

Equipment