Hi Chris:
In answer to your questions about a PWB board for user-installation
in a personal computer (PC):
1) Is it a given that all PCs meet UL1950 or IEC 950 directly or
indirectly?
PCs marked with any of the safety certification house certification
marks comply with an IEC 950
Hello Chris:
1) and 2): for the domestic market, your card does not yet need to comply
with UL 1950. I believe domestic requirements would be met by designing to the
requirements of UL 1459 (telephone equipment) and UL 478 (computer equipment).
A 1.5kV isolation transformer exceeds the UL
Any flammability issues - eg the material of the card etc..?
Charles Grasso
EMC Engineer
StorageTek
Tel:(303)673-2908
Fax(303)661-7115
Hi Chaz:
Yes. (I neglected to include this parameter in my response
to Chris and to the net.)
IEC 950 and its clones require all printed
This is in response to the product marketability question. It is true that a
PC buyer for a private application is most likely not concerned with safety
approvals status for a card assembly for his/her PC. But if the PC card
assembly company intents to pursue large volume sales to OEM and/or
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