If you see spikes when you rotate the turntable, it usually means there’s
something wrong. There’s usually a PE type ground, that unless the used copper
terminals to bond aluminum structure, and you have periods of moisture, then
that should be good.
Just about every turntable I’ve seen has
ESD from flush mount rotating table. Floor mounted power receptacles were
cabled to avoid brush noise from power connections. Cables in the crawl space
under the raised floor, slide about as the turntable rotated, and the generated
a static charge on cable insulation. Discharges could be
I dad that once, It was bad contact or loos contacts on the brushes to ground
in addition to very dry and not compliant humidity condition. In theory I think
you should have at least 30% humidity,
Sincerely,
Dieter Paasche
Senior Product Developer, Electrical
CHRISTIE
809 Wellington Street
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