Square D TVSS black ooze

02-04-2009, 12:07 PM	#1
rgsgww Member   Join Date: Jul 2008 Location: Iowa Posts: 1,543	Square D TVSS black ooze This black wax like material looks like it has oozed out of the TVSS's knockout. I think I've read somewhere that the unit needs to be replaced. The activity light says its ok. What do you think?

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02-04-2009, 01:00 PM	#2
Stubbie UAW SKILLED TRADES     Join Date: Jan 2007 Location: Kansas Posts: 4,584	Square D TVSS black ooze From my experience the black oooze is the potting compound used to seal the electronics of the unit. It could mean that something got real hot inside the tvss. I would be suspect of it. __________________ " One nice thing about the NEC articles ... you have lots of choices" Stubbie

02-04-2009, 03:18 PM	#3
rgsgww Member   Join Date: Jul 2008 Location: Iowa Posts: 1,543	Square D TVSS black ooze Quote: Originally Posted by Stubbie From my experience the black oooze is the potting compound used to seal the electronics of the unit. It could mean that something got real hot inside the tvss. I would be suspect of it. Thats what I think, there has been several outages. Big trees, a 1-2 ft diameter branch was hanging on the lines...just waiting to break. Soon the power went out... after that I noticed the ooze.