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CSA Group

Mitigate risk and improve operations through compliance with critical Canadian standards

CSA Group is an independent, not-for-profit membership association dedicated to safety, social good and sustainability. Its knowledge and expertise encompass standards development; training and advisory solutions; global testing and certification services across key business areas including hazardous location and industrial, plumbing and construction, medical, safety and technology, appliances and gas, alternative energy, lighting and sustainability; as well as consumer product evaluation services. The CSA certification mark appears on billions of products worldwide. Discover how you and your organization can become involved by joining the CSA Communities. CSA Group standards enable you to:

  • Improve safe operations
  • Improve product quality and reliability
  • Ensure interoperability

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Apr 27

VFD For 2 Motors Driving Same Equipment - CONTINUATION and DECISION ARRIVED

Three weeks back I have posted a problem about VFD Motor and Gear Box and the link is Please open this link and read so that you can re-call your memory for this topic, and read furthe below. 23 Members have responded with good suggestions and I a

Apr 27


This one seems kind of stupid so keep the laughter down Came across something today on a drawing by a company from a different company. Its a spec they say "short circuit resistance" Its measured in amps? Seems rather perplexing. Are they referring to the short circuit availability on the feede

Apr 27

UL508A 3 Phase Color Code?

Hello I have a copy of UL508A Trying to locate the appropriate wire color for 3 phase wiring I was always under the impression of the following L1 = Brown L2 = Orange L3 = Yellow Does someone happen to know the section of 508A that describes this for reference? Thanks

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