The panels of switchboards must be made of?

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Multiple Choice

The panels of switchboards must be made of?

Explanation:
Panels for switchboards must use a material that both resists moisture and is noncombustible. The environment around electrical equipment can expose panels to humidity, condensation, and heat from the equipment itself; a moisture-resistant enclosure helps prevent insulation degradation and electrical faults, while a noncombustible construction reduces the risk of fire spreading if internal faults occur. Waterproof or raintight claims aren’t necessary for typical indoor switchboards, and while impact resistance is useful, it doesn’t address the essential safety concerns of moisture control and fire resistance.

Panels for switchboards must use a material that both resists moisture and is noncombustible. The environment around electrical equipment can expose panels to humidity, condensation, and heat from the equipment itself; a moisture-resistant enclosure helps prevent insulation degradation and electrical faults, while a noncombustible construction reduces the risk of fire spreading if internal faults occur. Waterproof or raintight claims aren’t necessary for typical indoor switchboards, and while impact resistance is useful, it doesn’t address the essential safety concerns of moisture control and fire resistance.

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