The disconnect placement as required by the NEC
- 695.6(E) and 695.14(E): Added to the list of permitted control and pump wiring methods, Type MC cable with an impervious covering.
- 695.6(H): Ground-fault protection is not permitted for fire pumps. Obviously, all of the Article 695 rules are aimed at keeping the fire pump running as long as possible, even to destruction.
- 695.6(D): Feeders and branch circuits to be protected against short circuit only, not against overload.
- 695.5(B), (C)(2) and 695.4(B)(1): Clarification that the requirement to carry locked rotor current indefinitely applies to the overcurrent devices only, but not to conductors nor to other devices.
SCHWAN is an electrical Code consultant in Hayward, Calif. He can be reached at email@example.com.