Old and faulty wiring can be a major risk in a domestic or commercial places, 

Domestic or commercial 1-phase or 3-phase Fuse Board/ Consumer unit or distribution board replacement,

Alteration, replacement or full installation of the CCTV system.

A legal requirement to demonstrate that the electrical installation, wiring, and fuses are compliant with the BS 7671 standards.

Examination of electrical appliances and equipment for landlords, offices, etc., to ensure they are safe to use.

 If a plug-in electrical appliance isn't working  or cause tripping RCD in your consumer unit, there should be a fault in the appliance,

3-phase and 1-phase shutters, lifts, etc., electrical problem.

Most buildings require an effective fire system control panel to monitor the facility and alert occupants and firefighters to potential fires.

Cold or inconsistent hot water

RCD tripping occurs when the device switches off its own power when it detects an electrical circuit fault.