Oh yes please Tim, a series about UL panel design and manufacture would be most welcome. While I doubt I can ever become a UL approved manufacturer due to being in the UK I am sure that I would learn a lot more about making panels suitable for use within the US. Information on what we need to know, wire colors, rules etc. would also be welcome.
I've been doing UL panels for a long time and the code still confuses me a lot. It feels like it's written in a way to make it deliberately vague and difficult to understand.
I was able to establish my employer company as a UL508A certified panel builder several years ago, it was not very difficult. Like Tim says just give them a call and get the ball rolling. STUDY STUDY STUDY for the MTR exam. God Bless and get after it!
Having actually had some panels UL inspected. The persons were very professional, very helpful. I learned alot especially the ssc calc. Thanks for sharing Tim
Someone built a control panel at the place I work and it looks super Slappy. I found some violations, but I don't know what to do next. I have talked to my supervisor, but he doesn't seem to care.
Are you able to use the free digital view of the UL 508A while taking the MTR exam? I understand that it's open note/open book... but being able to use the free digital view would certainly beat the hell out of forking up $800 for the pdf. I'm just going to assume that there's some sort of block.
Here's one: using UL508A rated disconnects for the service entrance. UL508 disconnects are only suitable for between the motor and its last overcurrent protection device. For the panel feed you need to use a UL 98 rated switch.
@@TimWilborne that's great Tim. It's something that's easy to get confused about because you're building a UL508 panel, and almost all your components are UL508 rated. So its easy to think you need to use a UL508 disconnect.
That comment wasn't meant to be mean, only informative. Sorry it was deleted. I am social media stupid, so maybe I just don't see it. I was the clearance guy. BTW you absolutely need 2" clearance around a micro820. It is a Rockwell standard. I think they don't want to test it, so they say that about everything... L18, L30, L320, micro850 it doesn't matter.
Hi Sir, My company wants me to take the MTR exam, i have no prior knowledge about the electrical systems,panels or anything related to it.Where should i start from? Your guidance would help me a lot. Thanks
Also Class II isn't Class 2 I've seen people try to say and absolutely every time I've had an inspector tell me I need to do something a certain way I've always asked why and what I did incorrectly so I don't misapply the correction in another situation but thank you for the explanation
Good stuff here. I recently designed a large panel based off a design from the early 80's, that got dinged pretty bad by the panel shop because of UL requirements. I'd love to hear more about this topic as well. Thanks, Tim!
@@TimWilborne I think what you touched on, the two biggest mistakes, the SCCR rating and branch vs supplemental circuit protection is a great topic. Maybe just on quick overview on cable sizing as well.
@@TimWilborne I think it would be. I think my issue was they gave me so much information it was overwhelming. Grant it was an open book but some of the wording was tricky.
Yes, I had to re-watch the E-Learning video modules "Design for Compliance in Industrial Control Panels.." and take lots of notes. For those of us without an engineering education background, it can be a mountain to climb
I see so much supplemental protection where branch circuit protection is needed, especially in european panels. I even saw it in a UL Listed assembly.
Oh yes please Tim, a series about UL panel design and manufacture would be most welcome.
While I doubt I can ever become a UL approved manufacturer due to being in the UK I am sure that I would learn a lot more about making panels suitable for use within the US.
Information on what we need to know, wire colors, rules etc. would also be welcome.
I've been doing UL panels for a long time and the code still confuses me a lot. It feels like it's written in a way to make it deliberately vague and difficult to understand.
I passed the exam with a 90% but I'm not really sure if I learned anything.. It's open book.
Yes, we're working on some videos to help with some of the more common UL misunderstandings.
May god bless you and your family for sharing your knowledge with us all
So nice of you
I was able to establish my employer company as a UL508A certified panel builder several years ago, it was not very difficult. Like Tim says just give them a call and get the ball rolling. STUDY STUDY STUDY for the MTR exam. God Bless and get after it!
Nice work!
@@TimWilborne Thank you. That means a lot coming from you.
You are welcome
Having actually had some panels UL inspected. The persons were very professional, very helpful. I learned alot especially the ssc calc. Thanks for sharing Tim
Yes, mine is great as well!
Someone built a control panel at the place I work and it looks super Slappy. I found some violations, but I don't know what to do next. I have talked to my supervisor, but he doesn't seem to care.
Are you able to use the free digital view of the UL 508A while taking the MTR exam? I understand that it's open note/open book... but being able to use the free digital view would certainly beat the hell out of forking up $800 for the pdf. I'm just going to assume that there's some sort of block.
Yes, you can use the digital view of UL 508A during the MTR exam.
Here's one: using UL508A rated disconnects for the service entrance. UL508 disconnects are only suitable for between the motor and its last overcurrent protection device. For the panel feed you need to use a UL 98 rated switch.
Yep, that one is on the the list to cover Brian. Thanks for watching!
@@TimWilborne that's great Tim. It's something that's easy to get confused about because you're building a UL508 panel, and almost all your components are UL508 rated. So its easy to think you need to use a UL508 disconnect.
That comment wasn't meant to be mean, only informative. Sorry it was deleted. I am social media stupid, so maybe I just don't see it. I was the clearance guy. BTW you absolutely need 2" clearance around a micro820. It is a Rockwell standard. I think they don't want to test it, so they say that about everything... L18, L30, L320, micro850 it doesn't matter.
I see I'm on the wrong thread... Again social media stupid!
Hi Sir, My company wants me to take the MTR exam, i have no prior knowledge about the electrical systems,panels or anything related to it.Where should i start from? Your guidance would help me a lot.
Thanks
That isn't a test you go into without being prepared. UL has an excellent preparatory class on it.
Also Class II isn't Class 2 I've seen people try to say and absolutely every time I've had an inspector tell me I need to do something a certain way I've always asked why and what I did incorrectly so I don't misapply the correction in another situation but thank you for the explanation
Good stuff here. I recently designed a large panel based off a design from the early 80's, that got dinged pretty bad by the panel shop because of UL requirements. I'd love to hear more about this topic as well. Thanks, Tim!
Thanks for sharing. Let me do some brainstorming on how I could lay it out.
@@TimWilborne I think what you touched on, the two biggest mistakes, the SCCR rating and branch vs supplemental circuit protection is a great topic. Maybe just on quick overview on cable sizing as well.
@@coasterbp I already have a SCCR video planned. I could do a branch vs supplemental circuit protection video as well.
I got the certificate two weeks. It was tough for me as well.
Congratulations!
I am your fan. Your videos are vey helpful for me.
Hi, is there a way to access the practice exam w/o making the phone call to UL? Is there anything to read before taking the practice exam? thanks
MTR test was a challenge for me.
Yes, it took a lot a prep. Do you think it would be worth a video?
@@TimWilborne I think it would be. I think my issue was they gave me so much information it was overwhelming. Grant it was an open book but some of the wording was tricky.
@@joshkraai7657 Yes, the wording is very tricky. It made me second guess myself a lot
Yes, I had to re-watch the E-Learning video modules "Design for Compliance in Industrial Control Panels.." and take lots of notes. For those of us without an engineering education background, it can be a mountain to climb
Thanks Tim.
You are welcome.
I need how to develop servo programming
We might dabble in some more servo videos but probably not a deep dive into programming.