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Are there any electrical protection systems in my installation?

Safety switches are in built with most of the solar systems

Typically solar array cabling is terminated into a roof mounted junction box fitted with an isolator which allows the solar array to be disconnected at the roof. These housings are typically plastic and should be very high quality as they can degrade quickly and cause problems or danger if they fail, have water enter them or are of a cheap made.

Particular attention should be paid to the location and quality of water proofing of this box, which is a common failure mode in low quality systems.

From the junction box, it is common for one of two pairs of cable to be routed in conduits to the central inverter which is usually mounted near your switchboard. Particular attention should be paid to the way these cables have been installed and terminate at the circuit breakers. All these elements provide electrical protection to you and your system.