What is required on all enclosures containing conductors operating at over 1000 volts?

When dealing with enclosures that contain conductors operating at over 1000 volts, it is essential for enclosures to have suitable covers. The requirement for suitable covers hinges on safety and performance standards. Such covers prevent unauthorized access to potentially dangerous electrical components, help protect those components from environmental factors, and ensure that the enclosures maintain their integrity under various operational conditions.

Suitable covers also play a critical role in minimizing the risk of accidental contact with high-voltage conductors, which can pose significant hazards. They are designed to ensure that the internal components remain safely enclosed, in compliance with relevant electrical codes and standards. This requirement is crucial for protecting both personnel and equipment from electrical hazards, making it a vital aspect in the design and maintenance of electrical installations where high voltage is present.