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12.5 kV or 12.5 kVA? Well the 6 bread and butter HPU we intent to use here require 400V and 30kVA each. The ones where the 125A CEE plug imposes the limit we leave for the offshore jobs. Offshore is where you need to tripple the personnel because HSE requirements reduce productivity to less...

Well it takes 50mA or more through the heart reagion (one conductor each arm) for an otherwise healthy person. I'd say it improves your chances significantly.

Sorry I've really been making up numbers. It is the square root of 2. It really doesn't matter. 55VAC are not regarded as safe, just almost.

You WILL feel it, but it won't kill you.

Well I'm not an electrician isn't it the factor sqare route of 3?

The 50VAC maximum has to be insulated. Safe to touch is 25VAC. Nice to hear that it is ok to push the limits (break the rules) if it is only by a bit. So there is no consistancy. So I got a point to refuse the 110V annoyance and ask for a safe 230V supply which is fused at 16A and RCDed at...

Yes it matters. Actually it is the only value that matters regarding your heart. We stopped using 48VAC as controls current some 30 years ago, because it became illegal. Nowadays it is 24VDC Europe or 12VDC US. So I'd recommend a state of the art power supply at 230V single phase or 400V...

So it is a compromise. 55VAC effective is 95V peak. Completely illegal without RCD elsewhere in the first world. To me it looks like fixing one evil with another. And yes, never pass underneath scaffolders at work unless you want to commit cuicide. Don't think I'm against hard hats where they...

I don't get the logic. Everything above 50V without RCD is potentially lethal. Why don't you go to 24VDC. That is even safer. You don't even need a RCD. Simple circuit breakers are sufficient. Safe to touch. The HSE industry is a giant job and money machine. Good for those who couldn't get a...

Looks like I won the golden spade. I just rely on workmates who had been there before and asked why I put angle grinders on the materials list. I wouldn't be able to use them. No 230V permit, no hot work permit, no permission to change the disk once it is used. Hidden portable distribution box...

Got a similar problem. Being a specialist company working all over the world, we were surprised to hear that 110V exist in England. So for tools with high power demand we would have to swop to 400V which interestingly is allowed, just 230V are prohibited by some smart HSE regualtions. Since we...