Execute plans of electrical wiring for well functioning lighting, intercom and other electrical systems Install electrical apparatus, fixtures and equipment for alarm and other systems Install safety and distribution components (e.g. switches, resistors, circuit-breaker panels etc.) Connect wiring in electrical circuits and networks ensuring compatibility of components Prepare and assemble conduits and connect wiring through them Prevent breakdown of systems by routinely inspecting and replacing old wiring and insulated cables, cleaning circuits etc. Perform effective troubleshooting to identify hazards or malfunctions and repair or substitute damaged units