> From: Ron Pickard <[email protected]> > To: TREG <[email protected]> > Subject: Re: BABT Inquiry from Non-member submission > Date: Fri, 03 May 96 09:59:00 PDT > Message-Id: <[email protected]> > Encoding: 27 TEXT > X-Mailer: Microsoft Mail V3.0 > > > To George Semisky, your BABT inquiry was: > > > This question is directed to individuals who have knowledge/experience > with > > shipping product with analog telco ports to the United Kingdom. As long > as > > 4 or 5 years ago, we were instructed by BABT to perform hipot testing > > (1500vac or 2121 vdc) between analog telco inputs and the chassis on each > > production unit. This requires separating the AC mains safety/earth ground > > > connection from the chassis. Is this still required? Are other companies > > > that sell telco type products to the UK doing the same thing? > > My company's experience is that BABT has also recommended hipotting (1500Vac > or 2121Vdc) the (1)telco ports to chassis and (2) AC mains to chassis. This > way, both barrier systems are verified where AC mains-to-telco ports tests 2 > barriers at once (1 barrier could be faulty and the test could still pass). > This particular test regimen is not described in BABT 340 Table 1. However, > this approach that BABT recommended has actually simplified safety testing > for us. And if by asking if "this" being production line safety testing is > still required, I must say YES. > > Regards, > Ron Pickard > [email protected] >
