Great Video. I do have a question about feeder overcurrent protection. If I have another feeder overcurrent protection in the MCC, can I size it higher and the feeder cable or must be the same as the feeder overcurrent inside the control cabinet?
I tuned in to the live stream to get another person's viewpoint on what I've learned. I wasn't taught about disconnect rating so that was new for me. Not sure if a disconnect is required or if you can use the OCPD as a disconnect. However, two things that I would've included is feeder taps (430.28) and branch-circuit overload protection (T430.32(A)(1) and T430.32(C)). Overall, I thought it was a good video and I appreciate you taking the time to put it all together.
Wow thanks. Like I dont really want to do too much code stuff. But I wanted to give you guys the 4 critical electrical calculations and I wanted to try to make it easy. Yes feeder taps are important but I'm sure some one else can do a better job explaining it. Thanks again for the comment.
When you sized your feeder size wire you chose the smallest motor FLC to multiply it by 1.25%, but I thought you have to pick the largest motor TIMES 1.25% PLUS the rest of the motors FLC?
273 largest motor x1.25%=341.25+143=484.25 as a feeder at 75 degrees Celsius would be 800 kcmil. Correct me if I’m wrong because that’s how I thought it was. Thanks for your vids btw
Ok stupid question. How would you tap off paralleled feeders? I basically just did this for two small air compressor motors. Literally the same set up. Existing feeder, two disconnects (three actually) coming down from the gutter. Small 10Kw transformer.
Not sure what you mean. Like how meaning what material to use or like the code side of things. One thing I didn't do was include feeder tap codes because I had enough in the video as it is. Maybe I'll do a video on feeder taps. Just a tip of you tap off feeders you must tap off all the parallel sets. I like to use Polaris lugs. Easy to work with and they come with different amounts of terminals for a wide range of wire and in different angles for those tight pull boxes. Hope this helps.
Romex is classified for 90 degrees Celsius not 60 degrees Celsius. You just use 60 degrees Celsius if it’s 100 amps or less but for derating purposes romex is classified for the 90 Celsius
Again, Thank you for this video. On point as always.
Hey I read you first comment. I didn't forget you.
This is the best way to contact me. On my discord
discord.gg/PvbmpsEN
That noise man!!
You worked your way up from the motor all the way up to your first over current protection device?
Yes
Thank you ma brother! You’re a knowledgeable dude! You got that NYC accent
Morning brother Mel thanks for your time and happy holidays to you and your family 👍🏿🇺🇲‼️
Great Video. I do have a question about feeder overcurrent protection. If I have another feeder overcurrent protection in the MCC, can I size it higher and the feeder cable or must be the same as the feeder overcurrent inside the control cabinet?
I tuned in to the live stream to get another person's viewpoint on what I've learned. I wasn't taught about disconnect rating so that was new for me. Not sure if a disconnect is required or if you can use the OCPD as a disconnect. However, two things that I would've included is feeder taps (430.28) and branch-circuit overload protection (T430.32(A)(1) and T430.32(C)). Overall, I thought it was a good video and I appreciate you taking the time to put it all together.
Wow thanks. Like I dont really want to do too much code stuff. But I wanted to give you guys the 4 critical electrical calculations and I wanted to try to make it easy. Yes feeder taps are important but I'm sure some one else can do a better job explaining it. Thanks again for the comment.
By the 4 calculations I mean I have 4 videos of NEC code and that's it.
When you sized your feeder size wire you chose the smallest motor FLC to multiply it by 1.25%, but I thought you have to pick the largest motor TIMES 1.25% PLUS the rest of the motors FLC?
273 largest motor x1.25%=341.25+143=484.25 as a feeder at 75 degrees Celsius would be 800 kcmil. Correct me if I’m wrong because that’s how I thought it was. Thanks for your vids btw
I'll have to check that can you give me a time stamp. Yes you should multiply the largest motor and add the rest.
ALL U CUB'S, STAND UP & LISTEN UP!!!!....awesome job....any mech yet ?...winter hat w/ ya logo
Thank you sir 🤙
kudos!
Your welcome
Please follow me on:
Facebook/holmzlaw
Instagram/holmzlaw
TikTok/holmzlaw
Reddit/holmzlaw
LinkedIn/melvinrubio
Snapchat/holmzlaw
Tradehounds/holmzlaw
Discord- discord.gg/cKgE88wW
Communities:
Reddit/r/conduitology
Facebook/artofconduitbending
LinkedIn/artofconduitbending
Ok stupid question. How would you tap off paralleled feeders? I basically just did this for two small air compressor motors. Literally the same set up. Existing feeder, two disconnects (three actually) coming down from the gutter. Small 10Kw transformer.
Not sure what you mean. Like how meaning what material to use or like the code side of things. One thing I didn't do was include feeder tap codes because I had enough in the video as it is. Maybe I'll do a video on feeder taps. Just a tip of you tap off feeders you must tap off all the parallel sets. I like to use Polaris lugs. Easy to work with and they come with different amounts of terminals for a wide range of wire and in different angles for those tight pull boxes. Hope this helps.
Where do I get that dewalt 3-12
Amazon. DeWalt electrical reference 2017
Romex is classified for 90 degrees Celsius not 60 degrees Celsius. You just use 60 degrees Celsius if it’s 100 amps or less but for derating purposes romex is classified for the 90 Celsius
Your correct. I thought I said that. I was just making a point that it's limited to 60 degrees when it comes to ampacity. Yes 100 amps or less.
Great video breaking down the steps. Thank you!
Thanks for the comment and most of all for watching.
Send me a discord link if you don't mind. Great video like always.
discord.gg/ftxvbT6D