Thread: PAT
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Terry Casey Terry Casey is offline
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Default PAT

In article e5784359-80eb-490a-9440-60969b339866
@googlegroups.com, says...

On Thursday, 14 March 2019 12:06:57 UTC, Terry Casey wrote:
In article ff9a9243-3888-4584-8c76-a0cf3eea7a95


Let's see. Vintage radios and TVs using 'live chassis'
construction techniques, especially if the mains connection
was via a reversible plug/socket arrangement on the back of
the receiver.


that shouldn't change the live chassi issue, but the connectors are mostly not compliant - touchable live pins, no cordgrip. Can be bypassed.


Not in my experience.

The pins of the male connector don't protrude beyond the back
of the set which has a slot with just enough clearance for the
female connect to pass through so that the only time that the
pins are exposed is when the connector is removed.

I've vever come acros a connector without a cord grip (usually
moulded serrations in both sides so that the flat flex is
firmly clamped when the fiving screw is tightened.

Uninsulated control spindles so that, if the felt washer
between the knob and cabinet is missing, a fine probe in the
gap could come into contact with the potentially live spindle,
depending on the design of the knob. If the knob isn't secured
by an inaccessible strong spring clip, the securing grub screw
can also be contacted with a suitable probe.


Fit felt washer, cut one if necessary. A soft epoxy resin over the set screw.


I was thinking of a drop of molten candle wax!

At the rear, again a sutable probe through the ventilation
slots could contact the chassis or other live parts.


as long as it's not touchable. If it is, affix plastic netting.

But would any of these result in a PAT fail?


the connector usually

No, for the reason I stated above


--

Terry

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