Maximum Demand and Diversity Calculation Explained - BS 7671 On-Site Guide Appendix A In this video we go through step by step the calculation for working out maximum demand and diversity for a single phase installation. For this version of the calculation we take 100% of the largest circuit fuse rating and 40% of the sun of all the other fuse ratings and add these numbers together to find the maximum demand for the installation. Videos are training aids for City and Guilds (C and G) and EAL cou

Wet Room Zones Explained In this video Marcus looks at how BS7671 breakers down wet rooms into 2 zones. The most dangerous of these is zone 0 which is the floor area that contains the water up to 1.2 meters from the fixed outlet . Marcus then states what zones is missing as well as explaining the equipment likely to be found in each of the zones and the required IP ratings of such equipment. Marcus also answers the questions can I have a BS1363 13 amp socket outlet in a wet room… 🔵 Bathroom Zon

The 2nd Amendment to BS 7671: 2018 will be published on 28th March 2022 and we will be running virtual and face to face events to support you through the upcoming changes. And the best part? They are all free to access for NICEIC & ELECSA contractors. Check out what's on offer and register now - visit https://e-certsure.com/p/WCP-UH7/18th-live | NICEIC

How to Test an RCCB Changes to BS 7671 under Amendment 2 of the 18th Edition of the Wiring Regulation requires RCD’s to only be tested on the AC setting regardless of the Type of RCD and at the rated residual operating current of the device. This simplifies the testing process so even if you have an A, F or B Type RCD you only need to test it on the AC setting of you MFT tester and at 1x its mA current rating with a maximum disconnection time of 300 ms. #GSHElectrical #Electricaltrainingvideos #