Busbar Coating Guideline with Epoxy Coating Powder

In this arti­cle we will explain how to use epoxy coat­ing pow­der to prop­er­ly coat bus­bars, both alu­minum or cop­per

Low Voltage Busbars and Medium Voltage Busbars

Whether you are using epoxy coat­ing pow­der to coat low volt­age bus­bars or medi­um volt­age bus­bars, or whether you are using alu­minum or cop­per bus­bars, this guide­line will help you. This is what a sam­ple process (or recipe) will look like. Once the process engi­neer com­pletes the process devel­op­ment he will have some­thing like what is shown below. Gen­er­al­ly they will select the options on the HMI and the PLC will set the cor­re­spond­ing val­ues for the line to run – for sophis­ti­cat­ed sys­tems.

Bus­bar Epoxy Coat­ing Guide­line
Part geom­e­try
(Width x Thick)
  Mate­r­i­al Volt­age rat­ing Required Coat­ing thick­ness (mils) Pre­heat temp (F) Pre­heat Time (mins) # of dips Cure tem­per­a­ture (F) Cure Time (mins)
Top of Page
Epoxy Coat­ing Guide­line for Bus­bars
Low Volt­age Bus­bars (up to 600V)
2 to 8″ * 1/4″ Cop­per 600 V 20 to 30 340 20 to 24 1 380 to 400 20 to 24
Alu­minum 600 V 20 to 30 360 20 to 24 1 380 to 400 20 to 24
2 to 8″ * 1/8″ Cop­per 600 V 12 to 20 320 20 to 24 1 380 to 400 20 to 24
Alu­minum 600 V 12 to 20 320 20 to 24 1 380 to 400 20 to 24
Epoxy Coat­ing Guide­line for Bus­bars
Medi­um Volt­age Bus­bars (up to 38,000 Volts)
1/4″ Cop­per 5 KV & 15 KV 60 to 80 400 — 420 20 to 24 4 340 to 380 20 to 24
3/8″ Cop­per 5 KV & 15 KV 60 to 80 390 — 410 20 to 24 3 340 to 380 20 to 24
1/2″ Cop­per 5 KV & 15 KV 60 to 80 370 — 385 20 to 24 3 340 to 380 20 to 24
1/4″ Cop­per 27 KV & 38 KV 100 to 125 440 — 460 20 to 24 5 340 to 380 20 to 24
3/8″ Cop­per 27 KV & 38 KV 100 to 125 420 — 440 20 to 24 4 340 to 380 20 to 24
1/2″ Cop­per 27 KV & 38 KV 100 to 125 390 — 410 20 to 24 4 340 to 380 20 to 24

Vis­it caplinq.com to learn more about Insu­lat­ing Coat­ing Pow­der.

con­tact us if you have fur­ther ques­tions on Insu­lat­ing Coat­ing pow­ders.

About Chris Perabo

Chris is an energetic and enthusiastic engineer and entrepreneur. He is always interested in taking highly technical subjects and distilling these to their essence so that even the layman can understand. He loves to get into the technical details of an issue and then understand how it can be useful for specific customers and applications. Chris is currently the Director of Business Development at CAPLINQ.

2 thoughts on “Busbar Coating Guideline with Epoxy Coating Powder

  1. Dear Mr. Chris Per­abo,
    Ref­er­enc­ing to your this blog. I was try­ing to search any rel­e­vant lit­er­a­ture relat­ed to Bus­bar Epoxy coat­ing, until I reach to your blog. You blog would sure be ben­e­fi­cial to many of us.

    From the same blog, I am inter­est­ed to ask few ques­tion, for my under­stand­ing. In the tab­u­lat­ed data you present, for the Medi­um Volt­age Bus­bars (up to 38,000 Volts). I noticed, that with the increas­ing bus­bar thick­ness, the pre-treat­ment tem­per­a­ture, coat­ing thick­ness and the num­ber of dips are decreas­ing. Where­as my assump­tion is that with increas­ing bus­bar thick­ness, the pre-treat­ment tem­per­a­ture (if we keep the same time), coat­ing thick­ness and the no., of dips must increase.

    Could you please explain for my bet­ter under­stand­ing.

    Thanks,

    Amin Ali Shah

  2. Hel­lo Amin,

    You are cor­rect that you want to have a thick­er coat­ing when you are using larg­er bus­bars. How­ev­er, when you use larg­er bus­bars, these retain much more heat than small­er bus­bars, which means that there is MORE pick­up of epoxy coat­ing pow­der with every dip and there­fore also a FEWER num­ber of dips are need­ed to achieve the required thick­ness.

    I hope this helps. If you have any more ques­tions about epoxy coat­ing pow­der for switchgear and pow­er dis­tri­b­u­tion includ­ing low volt­age bus­bars and medi­um volt­age bus­bar coat­ing, please do not hes­i­tate to con­tact us.

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