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Rear-access switchboard doors open into stored material. What is required?

NASCLA Electrical exam practice question · Equipment for General Use

Rear-access switchboard doors open into stored material. What is required?

  • ALock the rear doors
  • BUse storage as an arc barrier
  • Clear the required access and working space
  • DIncrease bus rating

Why C is correct

Rear-access equipment needs the working clearance and egress required by its exposed parts and service method. Storage obstructs maintenance and can add combustible material.

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