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Electrical Supply and Earth Continuity

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

Create an Article

Electrical Circuits

Electrical Fittings

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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

Junction Box

  • for spur and lighting circuits
  • Box with individual screw or pillar terminals
  • Square box with a terminal strip connector
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Strip Connector

  • safe joint of wires
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Pillar Terminal

  • secure connection by bolt
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Screw Terminal

  • secure connection by screwing it down, found in Junction Boxes
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Claw Washer

  • goes on top of the end of a wire
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Rubber Grommet

  • used when cables run through holes in metal structures (Gung Flush Boxes)
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