Separation of terminal box from motor

[thinker]

This is a question to European specialists. We design for EU customer a large piece of equipment based on MV induction motor (about 4 MW power range). The motor has a side mounted terminal box which represents a huge packaging challenge. Is this permitted (as per EU standards - IEC, EN, etc.) to separate the terminal box from the MV motor? We know that here in US the NEC allows a terminal box separation from the motor for a distance not exceeding 6 ft of cable length (though for motors up to 600V).

 

[7anoter4]

I don't know if such a standard exists. If you already ordered the motor and the EU Manufacturer would supply a usual EU terminal box, you could order another terminal box according to NEMA MG-1 ch.20.
Once we ordered an IDF motor of 11 kV 4MW and I specified NEMA dimensions for the terminal box. The Manufacturer supplied the motor with his usual terminal box where was no room to connect our 2 parallel 3*240 15 kV cables and refuse to replace it, but agreed to pay the expenses for a new box. I ordered a new terminal box -as in attached sketch. The maximum distance was dictated by motor leads length only.

 

[thinker]

7another4, thanks for your response.What you suggested, is very reasonable, and I would do the same in the NEMA land. The only question is if I can do that in EU.

 

[msb10]

I realize this doesn't respond to your question about what you can do in the EU, but if shipping is the whole problem, why not just protect the motor leads and ship the terminal box separately? I once purchased a chiller with an 11kV motor that came from Sweden (I think) without any terminal box at all (weak spec).

Regards,

Matt