I'm honest. I'll be the first to admit it.
Previous beef with NRTL and the fuse issue is resolved.
It's my fault. I don't know who said they had basically
no sympathy but I liked that answer. Kept me on my toes.
Anywho, CoA for recognition of power supply was with a
48vdc branch circuit capable of delivering a maximum
of 20 amps. In our application, i.e. central office
environment, the branch circuit we are connecting to
is capable of 100 amps.
I got to hand it to this one test engineer. Was really
sharp on this point. Apologies to the NRTL people who
are reading this. Especially to that one test engineer
who IS reading this list ...
Doesn't make a difference if I could make the power supply
mfr change over to a DC fuse. The whole thing would have
to get retested.
So, now I'm on to finding an in-line fuse setup with
a 15 amp time-lag 5mmx20mm fuse. < chuckle ... >
Of course IEC-127 only goes to 6.3 amps. Otherwise,
we really are going to have to retest the power supply
and associated fuse with a source ten times the current
of the CO or 1,000 amps!!!
Anyone got any ideas for this?
I was thinking of putting three in-line fuseholders
with a 6.3 amp timelag 5mmx20mm fuse each in parallel
with one another ... < joking ... just joking ... >
Thanks for all the support both here and off-line.
Regards, one very very humble Doug McKean
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