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Electrical Supply and Earth Continuity

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Wires and Cables

Cable Protection

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Electrical tests

Testing Equipment

Types of Electrical Tests

Central Heating Wiring Diagrams

Central Heating Diagrams

Electrical Current

Types of Electrical Systems


Fuse Types

Safety Requirements

Wires and Cables

Cable Protection

Cable Sizing

Cable Types

Electrical Circuits

Electrical Bathroom Zones

Electrical Components

Electrical Fittings

Switches and Sockets


Earth Bonding

Earth Bonding

PVC Conduit

  • protects cables in dry lining walls
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Flexible Conduit

  • waterproof, will not de-laminate
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  • protects surface mounted cables
    • Steel trunking
    • PVC tranking
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  • protects buried cable
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Concealed Cables Route

  • 150mm from the ceiling level or corners
  • Horizontal or vertical inside the wall
  • If embedded at less than 50mm – protected with earthed metal conduit or ducting [Regulation 522-06-06]
  • Cables should not run in the cavity (may become wet)
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