N.H. Admin. Code § Puc 905.01

Current through Register No. 50, December 12, 2024
Section Puc 905.01 - Requirements for Disconnect Switches
(a) No facility which connects to the electric distribution system by means of a single-phase or 3-phase inverter that complies with Puc 906.01 shall be required to install and maintain a manual disconnect switch for utility use, unless:
(1) The customer-generator's revenue meter is not routinely accessible to the utility;
(2) The facility uses multiple inverters connected in series; or
(3) The utility connection is through a transformer rated meter.
(b) For purposes of this section, a "transformer rated meter" means a meter panel or switchboard employing the use of potential and current transformers.
(c) If the distribution utility finds it necessary for scheduled maintenance of which the customer-generator has received reasonable notice, or in an emergency situation, to disconnect from the electric distribution system a customer-generator that does not maintain a manual disconnect switch for utility use, the utility may do so by:
(1) Pulling the customer-generator's meter;
(2) Disconnecting the customer-generator's service at the site transformer; or
(3) Executing any other reasonable method of disconnection.
(d) If the customer-generator has been notified of a scheduled maintenance or other event requiring disruption of service, as an alternative to having service disconnected, and upon agreement of the distribution utility, the customer-generator or its representative may be present at the scheduled time of disruption of service and demonstrate to the utility representative that generation has been isolated from the utility distribution system and remains isolated for the duration of the required period.
(e) If the customer-generator schedules a meeting with the distribution utility for disconnection of the facility, as described in (d) above, and the customer-generator does not meet at the scheduled time, the distribution utility may disconnect the service as provided in (c) above.
(f) If the customer-generator does not install a manual disconnect device accessible to the utility, the customer-generator:
(1) Shall assume all risks and consequences associated with the loss of power to the customer-generator's premises during any period when the distribution utility is required to disconnect the customer-generator's electric service; and
(2) Acknowledges that the service disconnection shall interrupt all electric service to the customer-generator's facility site.
(g) Any customer-generator may agree to install a manual disconnect device accessible to the distribution utility.
(h) If the customer-generator elects not to install a disconnect switch for use by the distribution utility, the customer-generator shall install a warning label, to be provided by the distribution utility, on or near the service meter location.

N.H. Admin. Code § Puc 905.01

INTERIM #5921, eff 11-7-94, EXPIRED 3-7-95

New. #7424, eff 1-12-01; ss by #9353, INTERIM, eff 1-12-09, EXPIRED: 7-11-09

New. #9515, eff 7-18-09; ss by #9998, eff 9-20-11

Amended by Volume XL Number 33, Filed August 13, 2020, Proposed by #13080, Effective 9/14/2020, Expires 9/14/2030