Electrical Isolation Certificate
Electrical isolation certificate for recording a safe isolation, filled in on screen: each point of isolation with its method, lock number, who holds the keys and the caution notice; the voltage indicator and proving unit you used, proved before and after, and every conductor combination tested dead; then who isolated it, who accepted it, and who put it back on. One A4 page. Free, no sign-up. You isolate; we supply the form.
1 The work
2 Points of isolation — one card per point; each gets its own lock and caution notice
3 Proving dead — 0 of 8 steps confirmed
4 Additional precautions
5 Issue and acceptance — sign on screen, or leave blank and sign on site
6 Work complete and re-energisation
Export this isolation certificate
The A4 PDF is free to download now. Enter your email once to unlock the editable Word version and add your own logo.
- Editable Word template — reword it and reuse it
- Your own logo on the document (PDF & Word)
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Search 'electrical isolation certificate' and you get a blank form from an old certificates site, a software company's blog post, carbonless pads to buy, a Scribd upload, two safe isolation courses, a forum attachment and a lockout shop. Every form is a blank to fill by hand, and none of them records the part that matters most: which voltage indicator and proving unit were used, that the indicator was proved before and after the test, and which conductors were tested dead.
This certificate is filled in on screen and prints on one A4 page. Each point of isolation gets its own line — the method, the lock or tag number, who holds the keys and whether the caution notice is fixed. Proving dead is recorded step by step, with every conductor combination for single- or three-phase. Then the four sign-offs: isolated, accepted, work complete, and locks removed and re-energised.
Fill it in as you isolate, print it or keep it on the phone
The work
Site, client, the location and the work to be done on the isolated equipment. Choose single- or three-phase; the conductor combinations to test follow from it.
Points of isolation
One card per point: the equipment, where it is isolated, the method (circuit-breaker locked off, fuse removed and retained, isolator locked off…), the lock number, the key holder and the caution notice.
Proving dead
The voltage indicator and proving unit with their serial numbers, the eight safe isolation steps, and each conductor combination tapped as you test it.
Sign it off
Isolated by and accepted by, with the times. When the job is done: work complete, then locks removed and re-energised — the certificate is closed.
Dead working is the law's starting point — the form is not prescribed
The Electricity at Work Regulations 1989 require suitable means of cutting off and isolating the supply (regulation 12) and adequate precautions to stop equipment made dead becoming live while work is done (regulation 13); live working is allowed only where it is unreasonable for the equipment to be dead (regulation 14). HSE's guidance HSG85, Electricity at work: safe working practices, sets out the sequence — identify, isolate, secure the isolation, post a caution notice, and prove dead at the point of work with a voltage indicator proved before and after.
No particular form is required by law. A written isolation record is how many clients, principal contractors and permit-to-work systems expect it to be shown, and it is what you can point to if anyone asks what was isolated, by whom and when. The voltage indicator should meet HSE's GS38 guidance on test equipment.
Everything the isolation record holds
The steps the certificate records, in order
Identify and isolate
Find the right circuit and the right point of isolation — confirmed by test, not by the label — and switch it off there.
Secure and notice
Lock it off, or remove the fuse and keep it; keep the key; fix a caution notice at every point of isolation.
Prove, test, prove
Prove the voltage indicator on a known source, test every conductor combination at the point of work, then prove the indicator again.
Other sources
Check for anything that can back-feed or hold charge — generators, UPS, PV, batteries, capacitors — and isolate it too.
Sits with the permit to work, the certificate for the work and the RAMS
On a commercial site the isolation is often the first thing a permit to work asks for, and the RAMS for the job will already describe it. Once the work is done it is certified on an EIC or a minor works certificate. Your company, instruments, name and signature are remembered on this device, and each new isolation takes the next number.
You isolate and prove dead. We supply the form.
This tool lays the isolation record out and prints it. It does not isolate anything, it does not test anything, and ticking a box does not make a circuit dead. The person carrying out the isolation is responsible for it and for deciding whether the work can be done safely.
It is a record aid built on HSE's published guidance, not health and safety advice for your site. Where a client or principal contractor has their own isolation or permit system, theirs comes first.
Turn it into a connected job workflow
FieldHive keeps the enquiry, quote, job, invoice and payment connected — so it's built from the accepted quote instead of retyped, and the numbers carry through.
Other free tools for your trade
More FieldHive document tools — and the calculators behind the figures.
Permit to Work Template
The permit for the task — its electrical mode refers to this isolation.
issue the permit →Electrical Installation Certificate Template
Certify the new work once it is done — design, construction and test signatures.
certify the work →Electrical Risk Assessment Template
The risk assessment for the job, with the electricians' hazard library.
assess the job →Electrical isolation certificate questions
Quick answers to the questions people ask most.
The isolation is one record in the job
The isolation certificate sits in the job file with the certificate for the work and the invoice. FieldHive keeps the enquiry, quote, job, invoice and payment connected for that customer — the site paperwork is the one thing it leaves to you.
