What is the NETA-MTS recommended minimum insulation resistance value for a 5kV vacuum circuit breaker?

The NETA-MTS recommends a minimum insulation resistance value of 1.5 Gigohms for a 5kV vacuum circuit breaker. This standard reflects the need for adequate insulation resistance to ensure the reliable operation of electrical equipment and reduce the risk of failures that can lead to safety hazards or operational interruptions.

By setting the minimum at 1.5 Gigohms, NETA-MTS emphasizes the importance of having a robust insulation system to withstand the operational and environmental stresses that could potentially compromise the circuit breaker's insulation integrity. A higher insulation resistance value is indicative of better performance and longevity of the electrical equipment.

Therefore, 1.5 Gigohms is aligned with industry best practices and contributes to the overall safety and functionality of the equipment, promoting effective maintenance strategies and operational reliability in electrical systems.