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Minor Electrical Installation Works Certificate (3 Circuit)

A 3-Circuit Minor Electrical Installation Works Certificate extends the standard minor works certificate for jobs involving up to 3 circuits. It records circuit details, protective devices, cable specifications, and test results for each circuit including continuity, insulation resistance, earth fault loop impedance, and RCD testing.

BS 7671:2018+A2:2022Valid: One-off (for the specific work)

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Sample Minor Works (3 Circuit) certificate

Sample Minor Electrical Installation Works Certificate (3 Circuit) certificate created with CertBox, showing the professional PDF layout with circuit details for up to 3 circuits, protective device type and rating per circuit, cable type and size per circuit

Sample Minor Works (3 Circuit) with fictional data. All personal details shown are fake.

What it covers

  • Circuit details for up to 3 circuits
  • Protective device type and rating per circuit
  • Cable type and size per circuit
  • Test results: R1+R2, IR, Zs, RCD per circuit
  • Earthing arrangements

Who needs a Minor Works (3 Circuit)?

Electricians
Domestic installers
Part P registered contractors

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Frequently asked questions about Minor Works (3 Circuit)

When should I use a 3-circuit minor works instead of a standard minor works?
Use the 3-circuit version when the job involves work on 2 or 3 circuits. The standard minor works certificate (EL-02) is designed for single-circuit work. For work on more than 3 circuits, a full Electrical Installation Certificate (EIC) is required.
What test results are needed per circuit?
For each circuit: continuity of protective conductors (R1+R2), insulation resistance (minimum 1 MOhm), earth fault loop impedance (Zs, must be within values for the protective device), and RCD operation time if applicable.

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