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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Other changes include the use of proving units, non-contact voltage detectors and installation category ratings. A final change regarding test leads relates to the use of fused leads. 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.

This section has some in-depth points regarding correct equipment selection. However, if those leads are not rated to the same category as your installation, you could be putting yourself at risk. This has a new paragraph added regarding the use of non-contact detectors, or volt sticks: This includes electrical testing where dead tests are often as effective as live measurements. We look at the key changes in the fourth edition, the full version of which can be downloaded at the end of this article.

Specific requirements for test leads In line with changes made to the standards that cover ga38 manufacture of test leads, there are some specific requirements that leads should comply with added in the fourth edition: A brief guide Electricity at work: If you find hsr 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. This website uses non-intrusive cookies to improve g38 user experience.


Risky business Vehicle safety on farms Kidsafe: An important point raised in the causes of accidents is the use of multimeters. The guidance has not fundamentally changed from the previous version.

For multimeters, fused leads should have a high-breaking capacity fuse hbc or hrc with a current rating that usually should not exceed mA. HSE aims to reduce work-related death, injury and ill gs8.

For loop impedance, RCD or multifunction testers, the fuse will typically be 10A. The Regulations permit few circumstances where it is acceptable for live working activities to be carried out on electrical equipment or systems, this includes electrical testing and fault hsd. 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.

Electrical test equipment for use on low voltage electrical systems

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. Two key fs38 have been added to the examples of common problems to look for: There are gs3 requirements for the use of non-contact devices in coalmines. Firstly the Guidance Note has been amended to reflect relevant changes to the standard for two pole voltage indicators, BS EN Provided your existing equipment or leads meet either of the above there should be no need to replace anything until they need it.

Electrical test equipment for use on low voltage electrical systems Date of publication: 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.


hse guidance note gs38

Skip to content Skip to navigation. Safe working practices Memorandum of guidance on the Electricity at Work Regulation. Setting the multimeter to the wrong voltage range 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.

Wherever possible, all work on electrical systems should be carried out with the system dead.

This standard, which came into full effect in Mayis the standard that all new two pole voltage indicators should comply with. Health and Safety Executive. When it comes to proving dead this has always been advised against by Electrical Safety First previously the Electrical Safety Council. 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.

A footnote has been added to clarify that live working is defined as any testing or fault finding on live systems. This approach would derate the measuring equipment to the lower rating. This document provides advice and guidance on how to achieve this. GS38 Fourth bs38 Download a free copy. This should be done preferably on a voltage proving unit ys38 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.

There are several points highlighted here that should be considered closely when it comes to test equipment selection.