Monday, 18 July 2022

Key changes in Edition 5 of the Code of Practice for In-service Inspection and Testing of Electrical Equipment

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  Edition   5 of the Code of   Practice has been updated significantly. Below is a summary of the major ones that have been taken into accou...
Friday, 6 May 2022

Risk Based Frequency of Portable Appliance Testing

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Edition 5 of the IET  Code Of Practice (The official guide to PAT Testing) encourages the duty holder to carry out a risk assessment and giv...
Tuesday, 17 March 2020

500 V Insulation Resistance test and the IET Code of Practice (4th Edition)

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The IET code of Practice says (section 15.5) that the 500 V Insulation Resistance test is a "hard test" and that it can "dam...
Wednesday, 15 April 2015

Carrying out an Earth Continuity Test

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This test is carried out on all Class I appliances. The purpose of the test is to check that there is a good connection between the Earth ...
Thursday, 13 November 2014

Do consumers really understand test instruments?

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As an experiment, I recently posted a question on Amazon against a 'Microwave Leakage Detector' that sold for £10 compared to other...
Friday, 17 October 2014

Avoiding serious injury from an electric shock

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We get an electric shock when current passes through our body due to a voltage difference. For example, if we touch a live wire at 230...
Thursday, 4 September 2014

When is a PAT tester not a PAT tester?

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On our various Portable Appliance Testing courses I sometimes get asked whether one could use a £20 multimeter for PAT testing. I usually ...
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