Published: 20 November 2009
Category: Q&A
Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This Question of the Day, concerning a greasy substance coming from older cabling, is answered by the ECA:
Question: I have been conducting tests on a PIR system. In a couple of light switches we have found a green greasy substance that appears to have come from the cabling - can anyone explain what this is? Is it a problem?
Answer: It is the plasticiser used in early PVC materials that the cables were made from that is migrating out of the cable. It can become a problem if it gets excessive and gets into switch mechanisms etc. Rewiring is really the only solution if the problem is affecting accessories.
Answer: It is the plasticiser used in early PVC materials that the cables were made from that is migrating out of the cable. It can become a problem if it gets excessive and gets into switch mechanisms etc. Rewiring is really the only solution if the problem is affecting accessories.
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www.voltimum.co.uk/consult.php?universe=consult.index.questions