C
Crosswire
I vaguely remember an illustration in one of my books showing 3 phases of a supply entering metal trunking seperately, and the words ' THIS ARRANGEMENT IS NOT PERMITTED' emblazoned beneath it.
However I have been going through all my books and cannot find it.....
Anyone know what I'm on about?
However I have been going through all my books and cannot find it.....
Anyone know what I'm on about?