Updated Guidance on Testing Hager Type ‘A’ RCCB’s (What to do if they Fail 5x 30mA (150mA) Test. When testing an A type Hager RCCB for additional protection you may have to test at 5x 50mA (250mA) if when testing at 5x 30mA (150mA) the disconnection time exceeds 40mS. The link below is the how to guidance from Hager. Remember updates from manufacturers can change or be updated at anytime so always look for the latest information. https://www.hager.co.uk/news-exhibitions-case-studies/18th-edition

How to Test the Protective Bonding Conductor - Testing and Fault Finding Hints and Tips - AM2 & AM2S This video should help you understand why you must disconnect both end of the protective bonding conductor during your end point assessment AM2, AM2S or AM2E for apprentice electricians when doing the fault finding element of the assessment. Often at college you only have 2 short pieces of copper pipe to simulate the gas and water. In reality the water and gas pipes are connected together by othe