Insulation breakdown on Cables

Chemical reaction between Insulation and copper conductor

Some cables installed in Ireland during the 70's and early 80's had a problem with their insulation. A chemical reaction developed between the copper and the insulation. A green gunge is produced by this reaction and the insulation of the cable breaks down. If this occurs a rewire of the installation may be required. You should get an insulation test carried out to ensure the insulation is up to required standard.

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