Hot tip from a cool guy.

[Johnnydidd]

By the way when can we expect to hear about your next trip?

[1931flathead]

I just went on you tube he has 5 new ones on there

[fortyonerag]

Originally Posted by V8COOPMAN

Craig.......After a long career dealing mostly with the power distribution and UPS systems powering a huge air traffic control facility, I thought I understood a little bit about electricity, along with some reasonably-effective troubleshooting techniques to use when problems arose. I'll be darned, but your single paragraph above makes me realize just how dumb I must be with electrical stuff. I honestly never knew that 6v stuff only heats-up enough to make it easy to find the warm spots during a short.

One little tip here for ya none-the-less......there are SHORTS, and then there are the type of SHORTS that you haven't experienced....yet! DD

Reminds me of my time working on 480VDC UPS systems at YMML.

Good advice. A proper short can ruin your entire day

[cmbrucew]

Traction motors and generators for locomotives use 600 VDC. You can have both positive and negative shorts to frame/ chassis.
Bruce

[Old Henry]

Originally Posted by Johnnydidd

By the way when can we expect to hear about your next trip?

I'm still editing videos. Then I'll write it all up. It was a great trip up the west coast from San Francisco to the Olympic Peninsula. Yesterday I got back from a three day trip to Yellowstone with a couple of grandsons camping in the woods. Good time had by all.

[V8COOPMAN]

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Originally Posted by fortyonerag

Reminds me of my time working on 480VDC UPS systems at YMML.

Good advice. A proper short can ruin your entire day

Ours were 480VAC-in, then to 432VDC, and back to 208VAC-out! What is YMML? DD

[Lawson Cox]

Originally Posted by tubman

Speaking of heat shrink tubing, I find I use it a lot. (One of those things that may effect a "repair vs. replace" decision.) The problem with it is that it can be tough to get installed. A friend of mine in the electronics business put me onto some specialized heat shrink tube that shrinks at a 3 to 1 ration, which is significantly more than the stuff you can get from the hardware store. (It's helped out a lot in some situations, but it is kinda expensive.) Also when working with heat shrink, it's best to have a heat gun; I've seen it done with a Bic lighter, but I never have any luck with stuff like that.

Speaking of heat shrink tubing, just how much voltage/amps/whatever will that stuff insulate against ? As you are my knowledge of and ability to discuss electricity intelligently really sucks. Lawson

[fortyonerag]

Originally Posted by V8COOPMAN

Ours were 480VAC-in, then to 432VDC, and back to 208VAC-out! What is YMML? DD

YMML = Melbourne Tullamarine Airport here in Australia