The green ooze..

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Loosen the screws to find the ooze ! Duckhams (oil) it ain't.

DuckhamsNot.jpg


Nuclear industry ... http://www.hanford.gov/rl/?page=769&parent=748
No panic for a rewire there then..

Energy Safety Service NZ said:
Green Slime Syndrome
A few years ago the ESS provided advice about the 'Green Slime syndrome'.
Recent inquiries have prompted us to re-issue the article about the problem of green fluid discharge from PVC cables.
PVC cables installed approximately 20 to 30 years ago have been found to be slowly discharging a green fluid.
We are advised that the fluid discharging from cables has been found to contain mainly ester additives and segments of PVC and PVC/PV Acetate copolymer as a result of chain scission, plus about 1% of copper dissolved from the wire, which gives rise to the green colour.
Dielectric relaxation results showed that the aged cables had the same chemical structure, but with much less copper. The conductivity of the
fluid was of the same order as virgin PVC, with the aged cables having dielectric properties little changed to the original cable.
Investigations concluded that this problem does not constitute a serious performance problem, as the discharge is slow. However, in some cases
where there are high levels of discharge, the fluid has resulted in an electrical short circuit at electrical fittings. In these cases and where any
doubt arises as to the condition of such cable, replace the cable...

:(
 
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Its a royal PITA, and personally I would replace the cable in due course regardless, but as part of your link says:

If the answer to any of these questions is “yes”, then the wire must be replaced.

* Can the substance drip onto contacts or terminals?
* Is the substance flowing in such a way as to cause a short circuit?
* Does the insulation show sign of embrittlement?







BTW I've added your info to the Wiki.
//wiki.diynot.com/electrics:cable_types:green_slime
 

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