Jerry,

It depends on which standard you're using. I recall there are some
standards that allow this practice and some prohibit it. It is permitted in
EN60950.

Regards
Barry Esmore

----------
> From: Jerry Roberton <jerry_rober...@net.com>
> To: Product Safety Committee <emc-p...@ieee.org>
> Subject: Feeding 2 phases into one telco rack
> Date: Friday, 9 October 1998 20:17
> 
> Members,
> 
> Can anyone enlighten me  whether  reugulations exist  in EU  countries (
> Excepting the UK)  which  advise against or prohibit the practice of
> feeding  duplicated  powere supplies from different  230 V phases  into
> the same shelf  or rack of   telco TDM ( or any)  equipment.   The UK
> regs  say no.
> 
> Any guidance whether by proprietary  standards or  ETSI  work would be
> welcome.
> 
> Jerry Roberton
> EMEA Homologation   NET Europe

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