AC Disconnect Switch Clause Samples
The AC Disconnect Switch clause requires the installation of a device that can safely disconnect the alternating current (AC) power supply from a system, typically for maintenance or emergency purposes. This switch is usually placed between the power source, such as a solar inverter, and the main electrical panel, allowing technicians or emergency responders to quickly and safely isolate the system from the grid. Its core practical function is to enhance safety by providing a clear and accessible means to cut off AC power, thereby reducing the risk of electrical hazards during servicing or in emergency situations.
AC Disconnect Switch. PG&E recommends that a customer installing an inverter-based generator consider also installing an AC Disconnect Switch to facilitate maintenance of the Customer’s equipment (i.e. inverter, PV arrays, etc.). If an AC Disconnect Switch is not installed, the revenue meter may be temporarily removed by PG&E due to an emergency or maintenance on PG&E’s system to isolate the Customer’s generator from the electric distribution system. Removal of the revenue meter will result in loss of electrical service to the Customer’s facility or residence. AC Disconnect Switch requirements are available in PG&E’s Greenbook ▇▇▇.▇▇▇.▇▇▇/▇▇▇▇▇▇▇▇▇.
AC Disconnect Switch. 14.01. Customer shall install, at customer’s sole expense, a AC disconnect switch of the visible load break type to provide a separation point between the AC power output of the customer-owned distributed renewable generation system and any Customer wiring connected to JEA’s electric system such that back feed from the customer-owned distributed renewable generation system to JEA’s electric system cannot occur when the switch is in the open position. The AC disconnect switch shall be mounted separate from the meter socket on an exterior surface adjacent to the meter. The switch must be readily accessible to JEA at all time and capable of being locked in the open position with a JEA padlock. When locked and tagged in the open position by JEA, this switch will be under the control of JEA. The switch shall meet all applicable local and national electrical codes for the installed distributed renewable generation systems. The switch shall be permanently labeled with three inch high letters clearly stating “JEA (name of distributed renewable generation) DISCONNECT”. If the switch is mounted out of sight of the meter, permanently mounted instructions must be posted at the meter clearly stating the location of the disconnect switch.
14.02. JEA may open the switch and lock it, isolating the customer-owned distributed renewable generation system, without prior notice to Customer. To the extent practical, however, prior notice shall be given. If prior notice is not given, JEA shall at the time of disconnec- tion leave a door hanger notifying the Customer that the distributed renewable generation has been disconnected, including an expla- nation of the condition necessitating such action. The switch will be unlocked by JEA as soon as practical once the conditions causing the disconnection cease to exist. Customer may have to close the switch to re-energize the distributed renewable generation. Typical conditions which may require the switch to be opened include, but are not limited to:
(a) JEA electric system emergencies or maintenance requirements.
(b) Hazardous conditions existing on JEA’s electric system due to the operation of the Customer’s distributed renewable generation or protective equipment as determined by JEA.
(c) Adverse electrical effects (such as power quality problems) on the electrical equipment of JEA’s other electric consumers caused by the distributed renewable generation system as determined by JEA.
14.03. On termination of services pursuant to t...
AC Disconnect Switch. List the disconnect switch that will be used at this Generating Facility, if any (Enter “N/A” if not applicable).