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Minor works certificate template
A site record for electrical minor works: an extra socket or light, or moving a switch, on an existing circuit. Record the work, the board and circuit, earthing, Zdb and bonding, the protective device and RCD, then continuity, insulation resistance, polarity, Zs, RCD time and test buttons, with warnings on readings that fail. The form also asks whether the work is notifiable under Part P. Every question is listed below, and you can fill the live form in on this page.
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When is a minor works certificate used?
A minor electrical installation works certificate is for additions or alterations to an existing installation that do not extend to a new circuit, such as adding a socket outlet or a lighting point, or moving a light switch. The IET model form says it is not for replacing a consumer unit or distribution board; more extensive work gets an Electrical Installation Certificate. Inspection and testing still apply whatever the size of the job.
Last updated . Facts checked by the SiteSurvey team on 17 October 2026 against IET: BS 7671:2018+A4:2026 Minor Electrical Installation Works Certificate (model form), Approved Document P: notifiable electrical work in dwellings (England) and IET Wiring Matters, July 2022: RCD operating times.
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Every question in the minor works certificate template
An electrical minor works site record: the work done, the circuit it was on, earthing and protection, continuity, insulation resistance, polarity, Zs and RCD tests, departures and Part P notification. 3 sections and 42 questions. Follow-up questions and guidance appear only when an answer calls for them, so the person on site never sees the ones that do not apply.
Make it your own: every question is editable
This is a starting point, not a fixed form. Once it is in your SiteSurvey account you can reword any question, add or remove questions, sections and answer options, and add your own logo, so it fits the way your team works and the jobs you do.
Details you only enter once
Add this form to a project in SiteSurvey and it fills in what the project already knows, so nobody on site retypes it and every form on the job uses the same names. Anything filled in can still be changed.
- Project: the project name
- Client: the project's customer
- Site: the site, when the form is opened for a space or a product
- Site address: the site address, from the space or the project
Work done
- ProjectShort answerFills in from the project name
- ClientShort answerFills in from the project's customer
- Site*Short answerFills in from the site, when the form is opened for a space or a product
- Site addressShort answerFills in from the site address, from the space or the project
- Date the work was completed*Date
- TimeTime
- Electrician*Short answer
- Registration scheme and numberShort answer
- Description of the minor works*Notes
- Location of the workShort answer
- Photos of the work and the boardPhotos
Before and after, and the circuit at the board.
- CheckA minor works certificate is for additions or alterations to an existing circuit that do not add a new circuit, such as an extra socket or light, or moving a switch. A new circuit or a consumer unit replacement needs an Electrical Installation Certificate.
- CheckThis is a site record of the readings and checks. It is not the BS 7671 certificate or schedule itself: issue that from your registration scheme's or your certification software.
Circuit and protection
- Distribution board and circuit number*Short answer
- Earthing arrangementChoose one
- TN-C-S (PME)
- TN-S
- TT
- Other
- Earth fault loop impedance at the distribution board, Zdb (Ω)Number
- Earthing conductor and main protective bonding present and adequate?Yes or No
- Protective deviceChoose one
- MCB type B
- MCB type C
- MCB type D
- RCBO type B
- RCBO type C
- BS 88 fuse
- BS 1361 fuse
- BS 3036 rewireable fuse
- Other
- Rating (A)Number
- RCD typeChoose one
- Type AC
- Type A
- Type F
- Type B
- No RCD
- RCD rated residual current (mA)Number
- Arc fault detection device fitted?Yes or No
- Departures from BS 7671, if anyNotes
Tests
- Protective conductor continuity R1 + R2 or R2 (Ω)Number
- Insulation resistance test voltageChoose one
- 250 V
- 500 V
- 1000 V
- Insulation resistance, live to live (MΩ)Number
- Insulation resistance, live to earth (MΩ)Number
- Minimum for this test voltage (MΩ)Worked out by the form
BS 7671 Table 64: 0.5 MΩ for SELV and PELV circuits tested at 250 V, and 1 MΩ for circuits tested at 500 V (up to 500 V) or 1000 V (above 500 V).
Shown when “Insulation resistance test voltage” is answered - Insulation resistance against the minimumWorked out by the formShown only when the answers above make it relevant
- WarningBelow the minimum insulation resistance in BS 7671 Table 64 (1 MΩ at a 500 V or 1000 V test, 0.5 MΩ for SELV and PELV at 250 V). Investigate before the circuit is put into service.Shown when “Insulation resistance against the minimum” is “Below the minimum”
- PolarityChoose one
- Correct
- Fault
- Earth fault loop impedance Zs, measured (Ω)Number
- Maximum permitted Zs for this device (Ω)Number
From the BS 7671 tables or the device manufacturer. The form compares the measured value with what you enter here.
- Measured Zs as a share of the maximum (%)Worked out by the formShown only when the answers above make it relevant
- Zs against the maximumWorked out by the formShown only when the answers above make it relevant
- WarningMeasured Zs is above the maximum permitted for this protective device. The device may not disconnect in time.Shown only when the answers above make it relevant
- RCD operating time at rated residual current (ms)Number
- RCD time against 300 msWorked out by the formShown only when the answers above make it relevant
- WarningOver 300 ms at the rated residual current. IET guidance gives 300 ms as the maximum for a general non-delay RCD (an S type time-delayed RCD may take up to 500 ms). Check or replace the RCD.Shown only when the answers above make it relevant
- RCD test button operatesChoose one
- Yes
- No
- No RCD
- AFDD test button operatesChoose one
- Yes
- No
- Not fitted
- Tests recordedWorked out by the form
- Results outside a limit or failedWorked out by the form
- CheckOne or more results above are outside a limit or failed. Record what was found and done, and retest, before the circuit is put back into service.Shown only when the answers above make it relevant
- Comments on the existing installationNotes
- Is the work notifiable under Part P of the Building Regulations (England)?Yes or No
Notifiable: a new circuit, a consumer unit replacement, or any addition or alteration to an existing circuit in a special location (the space around a bath or shower, or a room with a swimming pool or sauna heater).
- CheckNotifiable work must be self-certified by a registered competent person, certified by a registered third-party certifier appointed before work starts, or notified to a building control body before work starts (Approved Document P).Shown when “Is the work notifiable under Part P of the Building Regulations (England)?” is Yes
- Name*Short answer
- SignatureSignature
See it filled in
A completed minor works certificate report, made by SiteSurvey from a fictional site visit: every answer, the photos, the guidance that applied and the sign-off, ready to send as a PDF.
Minor works certificate FAQs
What tests does a minor works certificate record?
Protective conductor continuity (R1 + R2 or R2), insulation resistance live to live and live to earth with the test voltage, polarity, earth fault loop impedance Zs, RCD disconnection time and the RCD and AFDD test buttons. The form warns on insulation resistance under 1 MΩ at 500 V, Zs over the maximum and an RCD slower than 300 ms, the IET maximum for a general non-delay RCD.
Is minor works notifiable under Part P?
In England, notifiable work is a new circuit, a consumer unit replacement, or any addition or alteration to an existing circuit in a special location, such as the space around a bath or shower. Other additions to existing circuits are not notifiable. Notifiable work is self-certified by a registered competent person, certified by a registered third-party certifier, or notified to building control before work starts. The form asks and shows a reminder.
Is this the BS 7671 certificate?
No. It is a site record of the work and test readings. Issue the formal certificate from your registration scheme's or your certification software, using the readings recorded here.
What else does it record?
The description and location of the work, the distribution board and circuit, the earthing arrangement, Zdb, whether earthing and main bonding are present and adequate, the protective device type and rating, the RCD type and rating, any departures from BS 7671 and comments on the existing installation.
Can the customer see it?
Yes. The record goes out as a PDF report or a share link from the SiteSurvey app, with the electrician's signature.
Who uses this?
Domestic and commercial electricians recording small jobs on site, and maintenance teams keeping a record of alterations to each circuit.
Related
Related templates
Templates that go with the minor works certificate form
A site record for new electrical work that needs an Electrical Installation Certificate: scope, supply and earthing, bonding, each new circuit with its tests, inspection items, departures and the three sign-offs.
An electrical test results schedule for a distribution board: every circuit with its device, cables, continuity, insulation resistance, polarity, Zs and RCD times, with warnings on readings that fail.
Site record for a periodic inspection: installation details, extent and limitations, supply and earthing, boards, schedule of circuits and test results, coded observations with photos, and the overall assessment.
Customer acceptance at handover: work completed, outstanding items, customer name and signature.
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