Electrical Connections.

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Across
  1. 3. Colour of line conductor (5).
  2. 6. Colour of insulated crimps used for 4.0-6.0mm cable (6).
  3. 7. Common type of cable used for wiring inside panels (3.5).
  4. 9. Lead type solder contains these two metals (3.3.4).
  5. 11. Colour of insulated crimps used for 1.5mm-2.5mm cable (4).
  6. 12. Abbreviation for circuit protective conductor (1.1.1).
Down
  1. 1. A good soldered joint is this (5).
  2. 2. A bad soldered joint is sometimes called this (3.5).
  3. 4. This is inside solder used for electrical/electronic work (5.4).
  4. 5. Colour of neutral conductor (4).
  5. 7. Lead free solder contains these tow metals (3.3.6).
  6. 8. Colour of insulated crimps used for 0.25-1.5mm cable (3).
  7. 10. A bad soldered joint is this (4).