2.3.2 a.c. switching device
Switching of the a.c. side of the installation shall comply with the requirements of BS7671,
An a.c. switch or combination of switches must be provided for isolation and maintenance in the installation.
A switch for mechanical maintenance shall be provided in close proximity to the Inverter and shall fulfil the following conditions:
* switch all live and neutral conductors
* be securable in the OFF position only
* clearly show the ON and OFF positions and be labelled as ‘PV system – main a.c. isolator’
An accessible means of isolation shall be provided to isolate the a.c. circuit . MCB’s, RCD’s and main switches installed in accordance with
BS7671 and in an accessible location can be used to fulfil the requirements for an accessible mea ns of isolation.
Note: At the point of installation of any a.c. switch-disconnector, the public supply should be considered the source and the PV installation the
load.