I really appreciate your videos. I've been a journeyman for 13 years and I feel like your videos are very easy to understand and it wasn't this easy in school. :-) thanks again
Wow. Thank you for the compliment!! What state do you live in? I always wonder because I hear this alot. I do my best to make things easy to understand!! Keep an eye out for new things coming out in the next few months that will help as you all continue to learn this Trade. Thank you for your support!! CM
I live in Vancouver WA and attend the Area 1 JATC apprenticeship in Portland Oregon. Currently in my 3rd year. I found your videos last year they have been a great tool to have. Without some of your calculation videos I would have had some difficulty passing one of my classes. Your a top notch instructor in my book !!!! Thanks again
Love the video man, you did a great job explaining motors and made it a relatively easy process to understand. One question though, where did you get the under 100 amp rule use the 60 degree column for table 310.16 for wire sizing?
to my understanding I thought for motors and ac motors I could use 75 degree column. am i wrong. just want to know. cause I get different answers all the time.
If the Table 430.52 when would you know to use the wound-rotor in this table? Will it have to mention it in the question on the test? Since squirrel cage and wound-rotor are on the same line in Table 430.250.
So the install would look something like..20amp breaker with #12 to a disconnect with 25 amp fuses feeding a motor starter with the overload set to 12.5 amps. Correct?
@@craigmichaud-electricalins4602 If you don't mind, can you do a video on sizing conductors for transformers? Would I size it the same way I'd size a motor since they're both inductive loads? Your thoughts.
@@vasiqshair I absolutely can do a video on sizing Transformers!!! There is a few different rules according to the NEC but can be confusing at the same time. Let me add it to my list and keep an eye out for it. I post video's every friday!! Thanks for your question!!! CM
Using the FLA for separate overload devices has me confused. The paragraph in 430.32 notes to use the percentages in reference to FLC, but also mentions nameplate, or so it seems. Where am i going off track ? Thanks.
I have been looking for an explanation like this for weeks. Thank you! Only one question: How do we know when to use NEC FLA and when to use Nameplate FLA?
Could you do the whole procedure with a motor plate from the European markt? Assume the start procedure is starcirciut to deltacirciut and the protection device may achieve that or a external circuit. And this motorplate is used crushtymks.com/images/electric-motor/the-basics-of-built-in-motor-protection-for-engineers-beginners_2.gif the bottom one in black, with 50 Hz. and you may use docplayer.nl/8187348-Normen-formules-tabellen.html
I really appreciate your videos. I've been a journeyman for 13 years and I feel like your videos are very easy to understand and it wasn't this easy in school. :-) thanks again
I am studying for my license exam in NC. You're videos help so much. It's step by step for dummies like me 😁
Your explanations are great !!! I wish you we’re instructing in our school !!! Thanks and keep up the great videos !!! Thanks
Wow. Thank you for the compliment!! What state do you live in? I always wonder because I hear this alot. I do my best to make things easy to understand!! Keep an eye out for new things coming out in the next few months that will help as you all continue to learn this Trade. Thank you for your support!! CM
I live in Vancouver WA and attend the Area 1 JATC apprenticeship in Portland Oregon. Currently in my 3rd year. I found your videos last year they have been a great tool to have. Without some of your calculation videos I would have had some difficulty passing one of my classes.
Your a top notch instructor in my book !!!!
Thanks again
I appreciate that!! I will be doing more calculation classes in the future!! CM
@@craigmichaud-electricalins4602 can you explain why you used the 460v column for 480v?
Thanx in advance. Awesome videos
Thank you so much. 3rd year apprentice here that needed a little extra help.
Welcome back Craig , your videos are always very through , thank you Rick
Love the video man, you did a great job explaining motors and made it a relatively easy process to understand. One question though, where did you get the under 100 amp rule use the 60 degree column for table 310.16 for wire sizing?
Thanks so much! This simplified the problem a lot and helped me to understand. Appreciate it!
Dude you’re amazing… helping me through what would take me years to figure out myself
Very well done ! . I lot of guys teach this, but you take out all the mobo jumbo and get right to the point !
Ye ...He is a good teacher...Other so called teachers just like to hear themselves talk.
Thank you
thanks you profesor casanova elec contrac from miami!!!!!!!!
very well explained sir, could you please tell the book name from which you have referred the chart.
Your fucken awesome
This information is awesome. Thanks a lot sir. Just Quick question Why in that table 430.250 Are using 460 volts instead 480v
110/220/460 etc = utilization voltage
120/240/480 etc = supply voltage
It just gives you some allowance because of voltage drop. Simple term it’s giving you some wiggle room
You"re my hero
I'm still wondering why you used the 460 column for 480v? I'm not sure if I missed it on the video. Awesome videos though.
Inspectors, here san fran, no joke, but helps me to get better, lucky im on there good side
When looking up wire size, it's table 310.15(B)(16). Not explained, had to freeze video for this. I'm assuming use this table for motor conductors. ??
It used to be 310.16. Wire ampacity
profesor we need video talking about objetionable current and the point jumper between grounding and neutral in switchboardcomercial work!!!!
Thank you for the video. I am curious if there is no stated fuse type to use, then how would you make your selection in 430.52?
to my understanding I thought for motors and ac motors I could use 75 degree column. am i wrong. just want to know. cause I get different answers all the time.
For 100 amps or less 60degrees
@@teardowniscool your only reading part of the code. Read #3&4
about to take my masters test in michigan in a few months.. Thank you for these videos. I used them for my Jman test and now for my masters
Thank you sir
If the Table 430.52 when would you know to use the wound-rotor in this table? Will it have to mention it in the question on the test? Since squirrel cage and wound-rotor are on the same line in Table 430.250.
So the install would look something like..20amp breaker with #12 to a disconnect with 25 amp fuses feeding a motor starter with the overload set to 12.5 amps. Correct?
Seen a WOLF chart? Never HEARD of a WOLF chart till I ran into your video.
How do you calculate the size of ground conductor on a motor ?
Thank You
Hi please if I have air-condition compressor hermatic I followed the same proceed. Thanks
Very helpful. Thank you.
Thanks you very much!! CM
@@craigmichaud-electricalins4602 If you don't mind, can you do a video on sizing conductors for transformers? Would I size it the same way I'd size a motor since they're both inductive loads? Your thoughts.
@@vasiqshair I absolutely can do a video on sizing Transformers!!! There is a few different rules according to the NEC but can be confusing at the same time. Let me add it to my list and keep an eye out for it. I post video's every friday!! Thanks for your question!!! CM
Taking my CA code test on Friday. Grounding and Bonding and Motors are a weak spot for me. Thanks for the videos.
Please share code book
Very helpful video. Thanks.
in your example 430.250 shows 14 amps. Then you say to multiply by 125%.... where are you getting that from?
If it's a continuous duty motor, your motor branch circuits should be multiple by 1.25
Using the FLA for separate overload devices has me confused. The paragraph in 430.32 notes to use the percentages in reference to FLC, but also mentions nameplate, or so it seems. Where am i going off track ? Thanks.
I would say whatever information is known use ?
@@NOTTV7 In the field, I agree. It's the test taking that I'm trying to narrow it down for.
@@Resistculturaldecline yeah me too , best wishes to pass your test🙏🏾
@@Resistculturaldecline I passed 🙏🏾 Craig was very helpful in me passing luckily this particular question wasn’t on the test for me lol
@@NOTTV7 That's solid news. Congratulations
So when you find the fuse size, that also determines the breaker size also, right?
100% 👌
Yes, thanks for not wasting our time!
Very nice!
Thank you for the video .so how i found the conduit size
Easy understanding. Thks
Finally I can understand thanks
Do I now have to size my wire bigger to #10 since we bump up the OCP to 25?
No
okay video but what if your not given a service factor, what do you do then ??
Use 1.15 % for all other motors
i have a question, ive been watching your videos and i just want to know how do i convert HP to WATTS? thank you in advance
746 WATTS= 1 HP
Great job.
for overload, if i get 18.75 amps from the code, can I jump up to 20 amp?
No you can not ,use next size down
@@teardowniscool won’t that trip the breaker? .. actually watched this video a year ago I’ll need to watch again
PERFECT!
👏👏👏
I have been looking for an explanation like this for weeks. Thank you! Only one question: How do we know when to use NEC FLA and when to use Nameplate FLA?
From what i can tell, it specifies somewhere in the chart you will be referencing for each part. Either in the header, or above the columns.
Yes ,you are supposed to use name plate or FLA only for select overload, and for a drawbridge motor .blessings
Hi if the breaker is 25 amp, then the cable from breaker to starter should be 10awg? Please let me know
No, not in this case
Could you do the whole procedure with a motor plate from the European markt? Assume the start procedure is starcirciut to deltacirciut and the protection device may achieve that or a external circuit. And this motorplate is used crushtymks.com/images/electric-motor/the-basics-of-built-in-motor-protection-for-engineers-beginners_2.gif the bottom one in black, with 50 Hz. and you may use docplayer.nl/8187348-Normen-formules-tabellen.html