Hello everyone,
        
        Maybe someone in the group knows the following information.

        IEC 1000-4-5 (and the European Norm EN 61000-4-5) prescribes
tests for simulating the effects of voltage surges caused by switching
disturbances in the power station. I am trying to identify the "number
of pulses per minute" when applying test surges to industrial
equipment." My searching has resulted in the following answers:

1.      "at least one per minute"
2.      "6 pulses per minute"
3.      "10 pulses per minute"
4.      "12 pulses per minute"

I have also been told that there is a new edition of EN 500082-2 (issued
1997) that might provide this information.  However, the usual
documentation sources only have the 1995 edition of this standard.

My two questions are:

1.      Where can I find the "number of pulses per minute" defined for
industrial equipment when applying IEC 1000-4-5 or EN 61000-4-5 ?
Or does anyone know this number?

2.      Does anyone have a 1997 edition of EN 500082-2 ?  If you do,
where were you able to purchase it??

        Thanks to anyone that can offer their input. 

John F. Dudek
Manager, Product Safety Engineering
Corcom Inc.
Libertyville, Ill. USA
voice:  847-680-7400, ext. 134
fax:    847-680-8169 (general) or 847-680-0340 (direct)
Mailto:[email protected]
Visit us at http://www.cor.com

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