N.J. Admin. Code § 7:14A-23.11 - Submersible wastewater pumps

(a) In addition to the requirements specified at 7:14A-23.10, submersible wastewater pumps shall meet the following additional requirements:

1. Submersible pumps and motors shall be designed specifically for raw sewage use, including total submersion during a portion of each pumping cycle;

2. Submersible pumps shall be readily removable and replaceable without dewatering the wet well or disconnecting any piping in the wet well;

3. The motor control center shall be located outside the wet well and be protected by a conduit seal or other appropriate measures meeting the requirements of the National Electrical Code, to prevent the atmosphere of the wet well from gaining access to the control center. The seal shall be so located that the motor may be removed and electrically disconnected without disturbing the seal; and

4. Winch and guide rails shall be provided to facilitate pump removal.

(b) An effective method to detect shaft seal failure or potential seal failure shall be provided, and the motor shall be of squirrel-cage type design without brushes or other arc-producing mechanisms.

Notes

N.J. Admin. Code § 7:14A-23.11