When should a ground fault circuit interrupter be used?

A ground fault circuit interrupter (GFCI) is specifically designed to protect against electrical shock by quickly shutting off power when it detects an imbalance in the electrical current, which can occur if water is involved. The correct application for a GFCI is in locations where water and electricity may come in contact. This includes areas such as bathrooms, kitchens, laundry rooms, outdoor locations, and any other area where electrical devices could potentially come into contact with water.

This protective measure is essential in mitigating the risk of electric shock, as water conducts electricity. By installing GFCIs in these areas, it is possible to significantly enhance safety in residential and commercial electrical installations. Therefore, using a GFCI in various settings that have a high likelihood of water exposure is not just advisable but often required by electrical codes.