Regulations for control cabinets

[wwlederer]

Our small company produces a special technology equipment (consists of pumps, motors, plc etc) for general industrial use. I do design of the control cabinet. Which regulation documents must I follow for electrical installation inside the cabinet? The UK (EU) law is particularly interesting?

Another question, if we use 240V AC, do we have to install a general isolator into the control cabinet?

Thank You in advance, Wal

 

[ControlThis]

I also design control cabinets for industrial purposes. I assume your equipment is being used in the US? If so, at a minimum, you would follow NFPA70 (national electric code) and also NFPA79(electrical standard for industrial machinery).
If located in the UK, then you will need to be CE compliant which is a bit more involved. If you follow NFPA70 and NFPA79, your circuit integrity or safety should be comparable to something that is CE compliant. It's been talked about that the US and UK electrical safety standards will be harmonized but not yet. In either place, the idea is to show due diligence on making a safe piece of equipment.
Good luck!

 

[HCBFlash]

You may well need to have your control cabinets UL (or other NRTL) listed. NFPA 70 and 79 should be used in the US. Use a version of NFPA70 no more than 2 revision cycles old. If well engineered and executed, and "labeled" your cabinets will pass the requirements of most code enforcement agencies.

Don't be misled by statements saying that "the 2008 NEC" need be followed. Not one AHJ has yet officially adopted it.

 

[wwlederer]

Thank You very much for the answers!