Ive always just marked the switch wire with a nick. Dont see the need to mark the feeds up, and as for the sharpie, its a complete waste of time. After the pill head painters slapped a full bucket of matt white on yer cables yer F****D.
 
Everyone I've met who uses a system of notches swears blind that their system is the industry standard.
It is not.
It may have been what they were taught but it wasn't what anyone else was taught.
There is no system of notches made reference to in any official documentation and it isn't taught in colleges, it's down to personal preference and only works if everyone working on the job knows the system.

I'm one of the ones who writes on the sheath what it does - if you've got cables with 'feed', 'S/L', 'strappers' etc on them then it's clear to anyone what the cables are for. Sure the decorators could paint over them, or the wood butchers could drill into them, or the spreads could butter over the boxes, but you could go on forever like that.
 
What about the plasterers that like to fold your wires (if you don't) right into the sockets and than completely skim over them leaving you to try find them or even forget one. :)
Bit like this;
IMG_0892.JPG IMG_0895.JPG
In was plastered over circa 1966, and I discovered it still live in 2015!
 
I would leave the loop blank and mark sw with one line/mark across the cable, sw 2 with 2 lines and so on.. Intermediates marked with a cross and strappers 2 lines along the cable.
That was all in the olden days before I started with knx, now it's a doddle :sunglasses:
 
Does that mean the ring final was open then? Daz
I was doing a kitchen refurb'. The property had had a new dual rcd CU installed year or so before, and I noted that there were two socket radials, which I thought unusual for such a property. This concealed socket was the end of both radials (and would of been the 'missing link' for the RCF). Found the cable drop while I was planning the kitchen alterations. In the end I decided to stick with the two radials, and disconnected one of the legs, and made safe the other.
 
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Nice one. Daz
 
Strange, we use a nick in the side for a cable to a switch, split down the middle for a cable to a load, no marking for main in/out, if there are several sets of cables such as at a 2gang switch, a horizontal mark note which cables go together. Thermostat and smoke alarm cables get an X. I don't use a pen as the messy painters paint all over the cables.
 

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Has wire marking changed - or what do you use.
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SteveG,
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