Level 2 · Plumbing revision

Electrical Safety & Isolation revision notes

Safe isolation, bonding and earthing awareness, bathroom zones and the scope of Part P.

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C&G Unit 209: Safe Electrical Isolation & Part P

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Earthing and equipotential bonding for plumbers

Why metal pipework is bonded, what main and supplementary bonding do, and why a plumber must not remove it.

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Safe electrical isolation steps

The disciplined sequence for proving a circuit dead before working on or near it.

Calculations: Ohm’s law & power

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Choosing a plug-top fuse from appliance power (worked example)

A worked example of picking the correct plug fuse from an appliance power rating.

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Ohm’s law and power (worked example)

Finding current and resistance for an immersion heater using V, I, R and power relationships.

More plumbing modules

Every module has its own revision notes and question bank.

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