See this http://bit.ly/1IOEhO link. But it has been done for years. The shutters are very good at holding wires in holes and I have seen many times where a screwdriver opened shutters then wires poked in holes and removing screwdriver released shutters holding wires in place.

I have been on the wrong side trying to argue my case when some one went into a garage in the concrete works and took an extension lead from the garage into the press shed where there is water everywhere. He had found a 13A socket provided for the PLC programmers laptop and used the lead to run a space heater. A fault on the lead gave another guy a shock so automatic as he was taken to hospital for check-up the HSE was informed.

The lead was not on the plant register the mechanic knew if I found it I would impound it. He had it hidden in his locker. However as electrical engineer it was still my fault for not educating not to use or finding the extension lead. In the end the HSE accepted some one had in fact stolen the lead since it was in a private locker and by agreeing to instigate a series of health and safety talks to educate the workers about the problems related in borrowing equipment from office or garage and moving the 13A socket to be inside the panel we avoided prosecution.

But believe me when I say it was a near thing. I had to write out my talk and issue questionnaires to prove the workers understood what I had said. Unfortunately I don't speak or write Welsh so I had to also get it translated to ensure it was understood. All the questionnaires were archived so in the future we could show any worker breaking the rules knew he was breaking rules.

At that time only English and Welsh were used on site but the boss had stated he would employ anyone willing to work even the English. One point I was picked up on was lack of signs in Welsh. The BS7671 does say "appropriate language(s)" and although we can argue that non nationals should be able to read and understand a British language we have to remember Welsh and Gaelic are British as well as English. I think there is still an ongoing case about a visitor from Patagonia who only spoke Welsh. Which of course was not a problem in Wales.

We rarely consider these problems and to be fair most Welsh do understand English but can you see the problem in selling a caravan in Wales where all the instructions should also be in Welsh! All part of inspecting and testing even though I can't read it. I could be putting on a sticker saying "A daft English speaker tested this" for all I know! I am sure you have read about the road sign saying "I am out of my office at the moment I will get back to you as soon as possible" written in Welsh as a translation. Bet that produced a few red faces?