I've got a 3 phase DB with individual RCBO's supplying various equipment, Fire Alarm Controller/Water Heaters/Office Sockets/Office Lighting/Air Conditioning Controller.
GN3 suggests "Any load or appliances should be disconnected prior to testing", would it be ok remove the supply at the RCBO for this and is it necessary to remove the load?
GN3 suggests "Any load or appliances should be disconnected prior to testing", would it be ok remove the supply at the RCBO for this and is it necessary to remove the load?