pipework

Maybe he looks at a meter, pretends to examine the cables or pipework...

Deciding what colour to get our external pipework painted took months...]

Walking at 2mph with both feet on the ground, very different from balanced on a frame of pipework rolling at 5mph.

Like, tectonic activity breaks the pipework, or it's sabotaged, or groundwater leaks into the dump tanks?

In a proper TN-C-S system the combined PEN will be split up at the main panel, and PE will be local ground and pipework is typically connected to that.

Those tools turn their thoughts into furniture, or repaired cars, or pipework, or cabling; I'd widen the group from traditional blue collar to include people like surgeons, too.

My colleague called him and said: I left a massive piece of metal in the pipework,so the first time you'll turn on the heating,the whole system will go tits up and you won't have heating for weeks.

Indeed, but if only the outer pipework or the isolation has been damaged, then a pure fiber-optic measurement will not detect the compromise.

It's easier, especially in areas with loads of wires and pipework - the downside is you have to rely on sometimes decades-old plans which can be off as much as two meters, and ramming a steel pole is enough to rupture a water or, worse, a gas pipe.