Unextinguished arc faults and arc flashes are unprecedented issues that result due to irregular or no maintenance of circuit breakers causing impairment to assets and injure personnel.
Visual inspection and Mechanical inspection – Inspect switchgear and all components for any physical damage/defects. Perform mechanical check and visual inspection for breaker / contractor as per section, instrument transformers as per section, on all disconnect / grounding switches as per section.
Insulation Resistance Test – The insulation resistance testing determines the quality of the insulation and its effectiveness in resisting the flow of electrical current
Contact Resistance Test – The resistance of electrical connection such as joints and connectors can be measured by contact resistance test. The resistance of terminations, conductors, cables and bus bar sections can also be tested. Ductor testing is used to verify that electrical connections are made properly and it has been designed to detect problems such as: