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US Coast Guard holds juridstiction over all intercoastal waterways and they accept IECEx equipment as long as the ExCB issuing the certificate is achknowlagded by them. But, can anyone shed some light on what protection methods that are approved. My equipment has a control panel which for now...

Thanks for all the replies. If any of you wonder what kind of a system i am talking about you can check out www.pusteluft.no As ScottyUK says, when i say offshore i mean on platforms and installations in the sea :D I cant believe I didnt realise there was a difference! 230/460v 7,5HP is what I...

ScottyUK: Norway is under the ATEX rules, I am building a prototype for North America. The motor i have for the atex version has a IEC 112 frame. I just found a chart IEC vs NEMA, and the closest seems to 184T for a 7,5HP motor.

We are based in norway

Anyone how can recommend a motor supplier? I am looking for an asynchronous three phase squirrel cage, 480v/60hz, 5,5kW, Class1 Div1.

And these voltages apply to both onshore and offshore? Is it accurate to say that 480v is the standard for motors aswell?

I am working on getting a breathing air system approved for use in North America. This is a brand new market for me, and i have a basic questions. I am trying to find out what the most commonly used three-phase powersupply is onshore and offshore? Thanks in advance.