Did an EICR the other day, the lighting circuits are 1.5mm stranded with a 1mm solid core cpc (not tinned) Green sleeving is fitted some I'm guessing it from the 1970s.
At most of the pendants and switches there's a green oily stuff leaking from the cable where it's stripped, some places it's pooled at the bottom of the switch box, I managed to pull some length on cable and stripped it back several inches and the green oil is around the cpc, I'm presuming this must be something they put it at manufacturing, but I've worked with loads of old T&E before and never seen this.
IR tests were all clear >500Mohms.
Any body have a clue what this??
At most of the pendants and switches there's a green oily stuff leaking from the cable where it's stripped, some places it's pooled at the bottom of the switch box, I managed to pull some length on cable and stripped it back several inches and the green oil is around the cpc, I'm presuming this must be something they put it at manufacturing, but I've worked with loads of old T&E before and never seen this.
IR tests were all clear >500Mohms.
Any body have a clue what this??