N.Y.C. Admin. Code § 230.96: Section 230.96

Section 230.96 – Add a new Section 230.96 to Part VII to read as follows:

230.96 Electrical System Coordination. For systems 1,000 volts and below where the service overcurrent protective device (OCPD) rating or setting is 1200 amperes and above, limited level coordination at 0.1 seconds and above on the time-current curve shall be required between the service OCPD and the next downstream OCPD. For systems exceeding 1,000 volts, full selective coordination shall be required.

Informational Note: See definitions for Coordination, Selective and Coordination, Limited Level.

Exception No. 1: Coordination shall not be required between 2 OCPDs in series with 1 another when no loads are connected in parallel with the downstream device.

Exception No. 2: When the second level OCPD is a single main device having the same ampere rating or setting as the service OCPD, coordination shall be required between the third level devices and the 2 upstream devices.

Exception No. 3: When only 1 OCPD is provided on the transformer secondary, limited level coordination shall be required between the transformer primary and secondary OCPD’s and the third level devices.