Dear experts, 

The CB reports for our products allow for the use of alternates for the
majority of the d.c. powered components as long as the alternate parts
provided are to the same procurement spec's as the part listed in the CB
report.  These parts are rated +24Vdc or less and the majority of them are
supplied for limited power sources.  We have been informed CQC will not accept
this practice for products which are to be CCC certified.  We do not
understand what added safety this restriction brings provided the alternate
parts are bought to the same spec.  Enforcing this rule would have serious
implications for us.  Before we do it I would like to know: 

Have you experienced similar issues? 
If so, how did you manage to comply with it? 

Any information or advice would be gratefully received. 

Thanks for your time, 
Craig 



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