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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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Electrical tests

Types of Electrical Tests

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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


Earth continuity test
  • to ensure integrity of the live, neutral and earth conductors
  • Earth continuity test
< Go Back2013-05-07

Insulation Resistance

Insulation resistance test
  • at least 0.5MΩ resistance between the live and neutral conductors
  • Insulation resistance test
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Polarity Test

Polarity test
  • to check that live and neutral have not been crossed over
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