S8 - Donnie or Kam Ala?

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Across
  1. 5. zero potential wire
  2. 6. "_______ insulation" - some household appliances make use of this to protect users
Down
  1. 1. connecting too many electrical appliances into the same power outlet through the use of multi-way adaptors
  2. 2. opposite of electrical conductor
  3. 3. suitable fuse rating in amps to be used with a toaster of 1200 W connected to a 160 V power supply
  4. 4. the acronym for the main switch that can switch off all the circuits in the house in a short time if an earth leakage current occurs from the live to the earth wire