In large warehouses battery chargers are tested normally at 6 months intervals.

One warehouse I tested recently had approximately 30 battery chargers for their forklift fleet in their battery bay - predominately high current three phase chargers. During visual inspection one of the leads was found to be rubbing against the steel bracket.

A closer inspection showed a cut into the lead and exposed copper from one of the internal cables. Had anyone touch the area of the cut lead, the potential for an electric shock was extremely high.

This lead was replaced, the charger tested and tagged. Following the visit, detailed photos and recommendations as to how to rectify this problem and prevent further damage and potential for electric shock were communicated to the client.