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In case of ICDP main switch, the meaning of ICDP is ______.

  • A.Iron Clad Double Pole
  • B.Insulated Core Double Pole
  • C.Insulated Cable Double Pole
  • D.Instant Cutoff Double Pole

Answer: A

ICDP stands for Iron Clad Double Pole. An ICDP main switch is a double pole switch (one pole for the phase and one for the neutral) enclosed in an iron case for safety, and is fitted at the start of a domestic wiring installation to cut off the supply.

The other expansions, 'Insulated Core', 'Insulated Cable' and 'Instant Cutoff', are not the meaning of the letters. So the first option is correct.

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