Recent content by Rootboy

Thanks guys! I didn't see any damage, but it was concerning. We'll let them ride. :)

We have LiFePo4 battery packs in our shuttles. Some of them have a raised cylinder sticking out of the top of the battery. Are these bad, or are they a different style of battery? Thanks! John

Good to know, I'm installing the first one in our shuttle, so we will know soon. :) Thanks!

Hmmm, that would work. That might be a better way to do it. Thanks! I had found this: https://www.alibaba.com/product-detail/Taidacent-500V500A-VAC8010F-Voltage-Coulomb-Capacity_60755751322.html?spm=a2700.7724838.2017115.27.1c891b3ceJm5TS And I have one coming in. I just don't know where it...

Just about anything will mar the outer sheath of THHN/THWN, so no foul there. But I hope to live out the rest of my years without having to do that again, I've gotten old. :)

What we are really talking about is a "Power distribution block". That makes finding them on the web easier. ;> Here's one that ought to do: https://www.galco.com/buy/ERICO/569020 After posting this I got to wondering about its suitability for use with aluminum wire. You have to go to the...

Hi guys, Can anyone recommend a coulomb counter for LiFePo4 batteries? Total pack voltage is 24 volts. We need them for shuttles and I need a contact to close when the pack gets to about 20% of its charge so we can send the shuttle back to the charger before it dies. Wireless is a...

Or tube radios and B&W TV...

At one point in my career(s) I was an elevator mechanic. We had an old-timey elevator in a concrete plant (where they made the concrete, not mixed it), and it had 120 VDC controls. This way they could get away with using a resistor and a capacitor across the coils of relays to give them off...

Yeah, I'll pass. LOL! On the plus side, you generally didn't get messed with by the other trades. If we couldn't beat them up outright, we could electrocute them.

Nice! Although I would be concerned about the marks that the pins would leave in the sheath. But we used short-ish pieces of rigid to bend our cables back in the day and we frequently had to go back in with tape to "tidy" things up.

Man, ain't that the truth. I've separated the bones in my wrist, blew out my knees and an elbow, and strained various other parts. This is just in the normal course of activities. The abnormal ones usually involves blood.

Forget the labelmaker, when it comes to wire labels, this is what we use (or ones like it): https://www.cablelabelsusa.com/ You print them up in you laser, so you would need access to one of those...

Dusting off and putting on my old Master Electrician's hat... Okay, as far as skin effect goes, the tables that you will use (depending on your country) have already taken this into effect. Don't worry about this. We used the same wire for either AC or DC. We most definitely do not pull solid...

Yeah, I bought one of those POS's for my car, it didn't survive the first actuation - broke the first time it was actuated.