I Like expressions. I think they are a fun way of communicating. I’m sure you will here them from me from time to time. However, there are two in particular I have come to dislike more and more over time; “It ain’t broke don’t fix it”, and “Testing is money for old rope”.
Both of these have cropped up while either repairing an electrical installation, or testing an installation. Usually accompanied, by “it was working before”, or “been that way for years”. I agree I’m sure it has been, but that does not mean it is either right, or more importantly, SAFE. Customers that I have worked for many times know how fussy I can be about getting to the cause of a problem. Sometimes it can be quite tedious, occasionally it can be very obvious. But my patience usually pays off, and I discover why even though the rope might not look broke, I find that it might be far from safe.
Electrical installations are all based on specifications and standards. Unfortunately, the electricity, or electrical energy, likes to whizz around quite fast to turn on that light or electric shower. It doesn’t give two hoots about these specifications or standards. It will happily use speaker cable to switch that light on, or damaged cable to get the shower hot. Neither of which will be to the correct specification, or standard.
So, are you sure your old rope ain’t broke? Why don’t I test it to find out? After all. Its your safety that I am thinking of.