zankorel
Member
Hi All,
Sorry this is a bit offtopic for this PLC board, but I am hoping someone can help me out.
I am involved in designing an industrial plant in Canada (I am based in Australia) and have heard some contradictory things about using 690V there. The plant is using 690V as its main motor voltage and there will be a number of VSD's using it.
My issue is around standards compliance. From C22.1 low voltage is defined as below 750V in Canada, so getting equipment stamped by CSA approved testers is no problem. However, I have heard that for control equipment (which I assume VSD's is associated) you need both CSA AND UL stamps. Since UL only tests to 600V (for low voltage) this appears to be a big problem.
Can anyone verify this issue? I cannot find the reference in needing CSA and UL myself, though I am looking for it at the moment.
Help?
Sorry this is a bit offtopic for this PLC board, but I am hoping someone can help me out.
I am involved in designing an industrial plant in Canada (I am based in Australia) and have heard some contradictory things about using 690V there. The plant is using 690V as its main motor voltage and there will be a number of VSD's using it.
My issue is around standards compliance. From C22.1 low voltage is defined as below 750V in Canada, so getting equipment stamped by CSA approved testers is no problem. However, I have heard that for control equipment (which I assume VSD's is associated) you need both CSA AND UL stamps. Since UL only tests to 600V (for low voltage) this appears to be a big problem.
Can anyone verify this issue? I cannot find the reference in needing CSA and UL myself, though I am looking for it at the moment.
Help?