Health & Safety Executive GS38 guidance note is aimed at people who use electrical test equipment on low voltage circuits. Institution (BSI) guidance and Health and Safety Executive (HSE) guidance Regulations lists HSE Guidance Note GS38 – Electrical test equipment. This is a free-to-download, web-friendly version of GS38 (First edition, published ). This version has been adapted for online use from HSE’s current printed.

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Skip to content Skip to navigation. This has a new paragraph added regarding the use of non-contact detectors, or volt sticks: However, non-contact or proximity devices can be useful hs38 indicating if something is live, eg when attempting to remove a single cable installed in trunking containing many single cables.

A brief guide Electricity at work: This fourth edition includes current test equipment and references and links to further guidance have hs updated. When it comes to proving dead this has always been advised against by Electrical Safety First previously the Electrical Safety Council.

HSE GS38 compliant tip caps

As a general rule, GS38 states that any equipment or test leads that hes to BS EN or BS EN will meet the requirements and be compliant, provided you have taken into consideration the installation category. Safe working practices Memorandum of guidance on the Electricity at Work Regulation.

If your leads break during testing it hxe be easy to swap them for another set from a multimeter or clamp meter. There are particular requirements for the use of non-contact devices in coalmines. A final change regarding test leads relates to the use of fused leads.

A newly added paragraph touches on the importance or carrying out risk assessments, putting into place relevant safety measures and the hsw of appropriate PPE.


This standard, which came into full effect in Mayis the standard that all new two pole voltage indicators should comply with.

Electrical test equipment for use on low voltage electrical systems

This includes electrical testing where dead tests are often as effective as live measurements. This has changed in the fourth edition, emphasising the importance of using test leads and test equipment that is suitable for the category of the installation.

Updates regarding the causes of accidents This section has been expanded on to include additional issues that have been raised since the previous publication: Provided your existing equipment or leads meet either of the above there should be no need to replace anything until they need it. Two key points have been hxe to the examples of common problems to look for: For multimeters, fused leads should have a high-breaking capacity fuse hbc or hrc with a current rating that usually should not exceed mA.

Firstly the Guidance Note has been amended to reflect relevant changes to the standard for two pole voltage indicators, BS EN Other changes include the use of proving units, non-contact voltage detectors and installation category ratings. The fourth edition of GS38 makes two important points regarding the purchase of new equipment and the use of older equipment. This approach would derate the measuring equipment to the lower rating. Whenever there are changes made to legislation and best practice, questions are often raised regarding existing equipment and whether it can still be used.

When it comes to buying new voltage detectors, you can be sure compliance with GS38 if the unit you are buying complies to BS EN Wherever possible, all work on electrical systems should be carried out with the system dead. For existing leads and equipment predating these standards, or manufactured to a different standard, G38 states they must be maintained to prevent danger and should comply with the guidance probes and clips in paragraph 9 download the full guidance note below.


The Electricity at Work Regulations require those in control of all or part of an electrical system to ensure it is safe to use and maintained in a safe condition. Specific requirements for test leads In line with changes hsse to the standards that cover the manufacture of test leads, there are some specific requirements that leads should comply with added in the fourth edition: While it has fundamentally remained the same as the previous version, there are some key additions that could affect the way gs3 test, or the equipment you are using.

Health nse Safety Executive. However, if those leads are not rated to the same category as your installation, you could be putting yourself at risk.

Hse guidance note gs38:

Precautions before testing This section has been expanded upon to recognise additional test processes covered by the guidance note. These regular references to CAT safety ratings in the fourth edition of GS38 hee the importance of ensuring that you have the right equipment and test leads for the job. Electrical test equipment for use on low voltage electrical systems Date of publication: Only devices which make contact with the conductor ie not proximity devices should be used for proving dead.

The document provides advice and guidance on how to work safely and ensure the right equipment is used and maintained properly.