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A metal clad switchgear having barriers of insulating is ____________.
1. door kiosk switchgear
2. indoor kiosk switchgear
3. distribution switchgear 
4. compartmented switchgear

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Correct Answer - Option 4 : compartmented switchgear

Metal-enclosed Power Switchgear:

  • A switchgear assembly completely enclosed on all sides and top with sheet metal (except for ventilating openings and inspection windows) containing primary power circuit switching or interrupting devices, or both, with buses and connections.
  • The assembly may include control and auxiliary devices. Access to the interior of the enclosure is provided by doors or removable covers, or both. This type of electrical switchgear has essentially an earthed metallic enclosure.
  • This type of switchgear has essentially three compartments, the front compartment is for circuit breaker, the top compartment is for bus bar assembly, and the back or rear compartment is for current transformer and cable connection.
  • Generally, metal-enclosed switchgear has compartments with metal partitions that are intended to be earthed hence this is called metal-clad switchgear.
  • Although some of these electrical switchgears may have one or more nonmetallic partitions and then this switchgear is known as compartmented switchgear.

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