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HSE GS38 PDF

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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The document provides advice and guidance on how to work safely and ensure the right equipment is used and maintained properly. While it has fundamentally remained the same as the previous version, there are some key additions that could affect the way you test, or the ga38 you are using.

We look at the key changes in the fourth edition, the full version of which can be downloaded at the end of this article. General changes The guidance note has been amended to reflect the wide range of people who work on electrical systems, particularly those where electrical testing is not a primary activity such as gas installers and alarm installers. A footnote has been added to clarify that live working is defined as any testing or fault finding on live systems.

This section has some in-depth points regarding correct equipment selection. Other changes include the use of proving units, non-contact voltage detectors and installation category ratings. Updates regarding the causes of accidents This section has been expanded on to include additional issues that hs been raised since the previous publication: There are several points highlighted here that should be considered closely when it comes to test equipment selection.

Firstly the Guidance Note has been amended to reflect relevant changes to the standard for two pole voltage indicators, BS EN This standard, which came into full effect in Mayis the standard that all new two pole voltage indicators should comply with.

HSE GS38 Fourth Edition – What you need to know to stay compliant

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 An important point raised in the causes of accidents is the use of multimeters. When it comes to proving dead gs8 has always been advised against by Electrical Safety First previously the Electrical Safety Council.

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Setting the multimeter to the wrong voltage hde will lead to a false reading, but having it set to measure current or resistance can result in excessive current being drawn through the test probes, leads and multimeter. Such devices should be proved before and after use. This should be done preferably on ys38 voltage proving unit some devices have built-in proving units or otherwise on a known live source of similar voltage to the circuit under test providing precautions are taken to prevent danger arising.

HSE GS38 compliant tip caps

This has a new paragraph added regarding the use of non-contact detectors, or volt sticks: There are particular requirements for the use of non-contact devices in coalmines. Only devices which make contact with the conductor ie not proximity devices should be used for proving dead. However, non-contact or proximity devices can be useful in indicating if something is live, eg when attempting to remove a single cable installed in trunking containing many single cables.

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.

This is an important safety issue as using equipment that is not correctly rated for the installation category can and has resulted in serious injury and death. This approach would derate the measuring equipment to the lower rating. These regular references to CAT safety ratings in the fourth edition of GS38 highlight 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

Clarification of the different installation categories BS EN CAT ratings is included in the guidance note as a reference and a visual guide is available to download at the end of this article. Specific requirements for test leads In line with changes made 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: If your leads break during testing it can be easy to swap them for another set from a multimeter or clamp meter.

However, if those leads are not rated to the same category as your installation, you could be putting yourself at risk. A final change regarding test hes relates to the use of fused leads. For multimeters, fused leads should have a high-breaking capacity fuse hbc or hrc with a current rating that usually should not exceed mA. For loop impedance, RCD or multifunction testers, the fuse will typically be 10A.

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If you are unsure as to what test leads you need to use, speak to our technical team on Precautions before testing This gd38 has been expanded upon to recognise additional test processes covered by the guidance note. A newly added paragraph touches on the importance or carrying out risk hae, putting into place relevant safety measures and the use of appropriate PPE.

Throughout this section, revisions have been made to include the need for ongoing risk assessments to ensure safety is maintained as well as re-emphasis of the need for selecting the right CAT safety rating for the installation hae test. Examination of equipment The changes here are mainly with the wording, however this section does highlight the need to maintain regular checks of test equipment and that these should be carried out by a competent person.

Two key points have been added to the examples of common problems to look for: Whenever there are changes made to legislation and best practice, questions are often raised regarding existing equipment and whether it can still be used.

The fourth edition of GS38 makes two important points regarding the he of new equipment and the use of older equipment. As a general rule, GS38 states that any equipment or test leads that conform to BS EN or BS EN will meet the requirements and be compliant, provided you have taken into consideration the installation category. For existing leads and equipment predating these standards, or manufactured to a different standard, GS38 states they must be use to prevent danger and should comply with the guidance probes and clips in paragraph 9 download the full guidance note below.

Provided your existing equipment or leads meet either of the above there should be no need to replace anything until they need it. If you find you have leads or test equipment that no longer meet these requirements, or have been damaged, it would be advisable to replace them to ensure your ongoing safety. Trusted by Professionals Search: