Recent content by landrand

I can easily take the screws out and grind/file those tabs down so they would not exist in the installation.

I have a bunch of Square D 4"x4"x4 ft wireways laying around that I would like to install in my shop for running electrical wires. The wireways are nice because you can have up to 30 current carrying conducts in the wireway without having to derate the ampacity of the wire. Whereas using EMT...

Why does the 205 amp rated 4/0-4/0-4/0-2/0 use a 2/0 for ground but the nec says a 4 or 6 gauge copper?

I'm in the process of installing a 175A feeder sub-panel off of a 200A Homeline load center in a 50'x100' steel bldg. I ran 4/0-4/0-4/0-2/0 AL SER cable on top of a steel girt (without conduit) in this steel bldg. I am going to splice this AL SER cable in a junction box (polaris connectors)...

Terry, lots of good info here. Thanks! I need to do a bit more research on when the neutral needs to be counted as a current carrying conductor. Sometimes it does, sometimes it doesn't. I need to read the code more to ensure how my scenario would be treated. Using the 90 dec C column rather...

The NEC ampacity rating for conductors needs to be adjusted based on the the ambient temperature as well as the number of current carrying conductors in a conduit. The NEC table that specifies the ampacity of conductors is based on an ambient temperature of 86 deg F. Since my steel bldg. in not...

The sub panels are in the same building I'm thinking it may be wise to look into industrial panels vs using the existing SQD homline panel. Right now there's not much connected to this existing panel so changing it out now would be very easy.

Good point! I looked at the panel label and it says the following: "Total circuit breaker handle rating not to exceed 185 amps per branch circuit connector." It also says: "Two Pole type HOMA (150A) may plug on four adjacent spaces." Not sure what to make of this verbiage?

Can you provide an example or model # of an industrial panel you recommend and i can do some research. I've only dealt with residential panels and don't know much about industrial panels.

I only had 96 feet of the 4/0-4/0-4/0-2/0 AL SER cable. Bought it for $100. Total run is about 142'. Advantage of SE cable is i didn't need too put it in conduit when i ran out on the girt.

Ok, I can put them on the left side. Thanks for the info! I believe i can buy a lk225an lug kit that is good for 200A and accepts 4/0 wire. I'll use smaller wire for the ground.

Was wondering if the gurus can critique and/or provide recommendations on my plan to install two sub-panels in a (50'x100') 5,000 sq ft steel building that I plan to use as a hobby woodworking and welding shop. I plan to install two sub-panels using two feeder circuits originating from the...

Here's a few pics of my metal building that I want to install a secondary 150A panel. Again, the building is 50'x100'. The main panel 200A panel is on one gable end (by door) and I want to run a feeder to a 150A panel on the opposite gable end. As you can see in the pics, I have steel girts...

Thanks for the excellent replies. I'm glad I posted here before taking on this project. [pattenp: Why not use aluminum SER? If you can run the cable mainly where it is out of the way from damage no conduit is needed. If any of it is in areas where possible damage could happen then just sleeve...

I have a large steel building (50'x100') that I plan to use as my hobby woodworking/welding shop when I retire in a few years. Since it's a large building, I'd like to install a sub panel off the buildings 200 amp main breaker panel instead of running individual circuits all originating off the...