main isolation switch off/open
breakers/fuses in place, in on/closed position. I Don't have osg to hand so can't comment.
This is a dead test but still dangerous, certain equipment should be either removed or switches opened prior to test.
Hi both, don't have osg in house but for in service inspection/test normal method is to have main switch open(off) so board effectively disconnected from mains.
All mcb's on /fuses in place, LINK Line to Neutral on dead (busbar) side of switch and test to main earth bar in con.unit.
If greater than 2 Meg no more tests should be needed and reading is noted on PIR sheet for all circuits.
If less than 2Meg then circuits must be individually tested by disconnecting neutrals and lines from mcbs, and joining as before & testing to earth with circuit cpc still connected to earth bar.
Doing it this way will protect any electronics from harm, if all sockets empty and no electronics on lighting ccts then lights switched off, Line to Neutrals can also be tested.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!