Power Supply for a Foam Cutter?

I don't know if you are the one I replied to or not. However, my warning was not to you but to anyone trying to imitate you. I have watched utilities workers handle 7200 volts live but that doesn't mean I would do it. They are trained and equiped for the job.

We had a club member who shocked his wife everytime she helped him cut foam. After talking to him I found out that he was using line voltage directly. Duh!!!!!! He didn't know any better, he was a mechanical engineer!

Any time you have live line voltage connected as you say, there is a chance of a fault causing a problem, no matter how well you have made the connections. Wires do break.

Your suggestion of an isolation transformer is appropriate and a safer solution.

Dan Thompson (AMA 32873, EAA 60974, WB4GUK, GROL) remove POST in address for email

Reply to
Dan Thompson
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In that case, I have given you the best advice possible. You have every right to ignore it. How could I possibly argue with someone who intentionally grabbed hot wires hundreds of times. Is the rest of your family equally versed in the finer points of grabbing hot wires? How about the dog or cat?

I just pray that I am not asked to write the epilog to your Darwin award.

Regards Fred

Reply to
w4jle

"w4jle" and Paul blathered on nonsense in messages.

For any of you who do not like my suggestions on how to make a voltage control with perfectly operational and inexpensive safety devices I suggest the following:

Make sure you do not ever allow a toaster in your house or allow any of your family to ever use a toaster. These are highly dangerous appliances. Far more dangerous then my power supply. Also, do not under any circumstances ever even think of buying or using a hot air gun. Way too dangerous. And how about those electrical heaters that you can buy from any store that sells electrical appliances. The little things that have a fan on them that half the secretarys in the world have under their desks to keep warm in cold weather. I sure hope you make sure they are banned from your homes and workplace. Far more dangerous potentially then my power supply.

As I said, those who have no knowledge of electricity and how to deal with it safely have no business making their own cutting bow. They should go out and purchase a commercial unit. For the rest of us there are numerous inexpensive and effective and safe alternatives. As Paul and some others clearly have no knowledge on many items they post about, including this item, I suggest they should get a life and learn when they have some expertise (seldom) and when the world would be a better place if they just went flying instead of typing.

Reply to
flyrcalot

Let me ask you a couple questions: Would your power supply pass UL tests? Would your grabbing powered line voltage wires pass OSHA muster?

Reply to
Paul McIntosh

It has been 30+ years since I was directly invovled in getting a UL approval. So perhaps the rules have changed? But it should be no problem at all in view of other electical appliances that have recent approval and are inherently more dangerous.

re OSHA. In the US OSHA does not bother one person businesses. Perhaps this is part of the reason the US has such a vibrant economy compared to where you live?

Reply to
flyrcalot

NONSENSE! If you wish to become the recipient of the Darwin award, that is your business. To promulgate this misinformation is a totally different matter.

Reply to
w4jle

Hear hear. I am not known as the most safety conscious of beings, but even I would hesitate to recommend using equipment that could, either by ignorance of construction, or simple fault, stick 110v AC straight from the mains into a piece of bare wire being manhandled by someone who has taken it in good faith that this is a sensible suggestion.

Its tantamount to saying its OK to look down the barrel of a 45 and pull the trigger, because you know it ain't loaded...or at least it wasn't last time you did it...

Reply to
The Natural Philosopher

I touched raw chicken. What are you going to do about it?

Bob

Reply to
Bob Adkins

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