DC in AC RCDs Joe Robinson training on

This video is another collaboration with people from across the e5 family.

This time with Joe Robinson training, his channel covers electrical science and principals. He also teaches with Gary Hayers and is part of GSH Electrical.

Paul decided to bring in a rig that simulates the possible DC saturation aka shock/stun/feedback onto a RCD within an installation.

Given modern electrical installations contain many ways to manipulate wave forms to utilise low energy, this naturally can lead to various harmonic effects from the load and leakage from poor quality product via design or poor install or failure.

This video seeks to stir the grey matter and shine some light on the concept that DC feedback as per the 18th edition (APPENDIX 5) classification of external influences AM7. Regulations 33.1 (ix) and also regulation 113.4 are worth noting if you think this is not in the regs book.