All:
Under clause 1.5.9.4 "Bridging of basic insulation by a VDR" in the
latest version of 60950-1
Paragraph two:
"Equipment with such a VDR bridging insulation shall be one of the
following:
- equipment that has the provision for a permanently
connected PROTECTIVE EARTHING CONNECTOR and is provided with
instructions for the installation of that conductor.
This requirement appears to rule out the use of power supplies making
use of earthed VDRs in their primary circuits, if used in "Pluggable
Equipment Type A" if a separate earthing terminal is not provided.
Could anyone confirm that this interpretion is correct and wether this
was the intent of the committee.
Donald McElheran
Product Compliance Specialist
Ross Video | Live Production Technology
www.rossvideo.com
+1 (613) 652-4886
-
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