Making the connection with reliability & maintenance management systems

The results of electric shock and arc flash hazard/risk analysis are dependent on certain aspects of the electrical equipment to be maintained to assure designed and assumed performance. This includes the mechanical integrity of covers, doors and barriers, the mechanical and electrical integrity of bonding and grounding systems, as well as the functional performance of circuit protective devices and protection systems. In addition, the frequency of exposures associated with maintenance tasks is dependent on the effectiveness of the reliability & maintenance programs in place. This paper introduces two concepts to help differentiate maintenance strategies: electrical safety critical maintenance, and electrical safety dependent maintenance. The paper further examines the relationship between management of electrical safety and reliability & maintenance and suggests ways to enhance the synergy and integration of these two business management systems.