(Sub) CLAUSE / ANNEX HEADING:
Electric shock hazard under normal operating conditions – Testing on the outside – General
OTHER RELEVANT (Sub) CLAUSES / ANNEXES (as applicable):
See Clause 11 regarding use of UL 60950 power supplies in audio/video products.
DESCRIPTION OF ISSUE:
When power supplies have been evaluated using UL 60950 requirements, which touch current (leakage current) limits are applied?
The touch or leakage current limits noted in Clause 9 of UL 6500 apply regardless of the Standard used to investigate the power supply.
The leakage current limits for power supplies investigated using UL 60950 are higher than those in UL 6500 (and in IEC 60065) and are not applicable for use with audio/video products. Although UL 6500 will accept products that employ a UL 60950 investigated power supply, the lower touch current levels in Clause 9.1.1 should be noted and applied.
SEE RELATED PAG: