Ground Fault Circuit Interrupters

On this project the lift engineering trade contractor, are using Ground Fault Circuit Interrupters (GFCI). This equipment works as fast acting circuit breakers which sense small imbalances in the circuit caused by current leakages to ground and in a fraction of a second shuts off the electricity.

These devices are used on shaft temporary lighting, all other portable electrical tooling including extension leads for the protection of their workforce.

Despite the contractors transformers being fitted with internal RCDs, the trade contractor still uses the GFCIs rated at 6mA as standard company practice policy accordance with their world-wide job site safety standards. This shows going above and beyond with electrical safety.

Having this extra protective safety measure ensures that safe working practices are in place for the works and if replicated across the industry would improve protection of those working with electrical equipment and extension leads.

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Entry submitted by Sir Robert McAlpine

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