Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
We have cables coming into manhole...600V DC. Is there something that's inexpensive that can be used to test for leaky/stray voltage? Some conduits have 4 cables. Thanks.
Testing........
- Thread starter Alwayslearningelec
- Start date
Dsg319
Senior Member
- Location
- West Virginia
- Occupation
- Wv Master “lectrician”
What’s your definition of inexpsinsive lol
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Under $700.
Used Megger Test Equipment For Sale | AccuSource Electronics
Used Megger test equipment and other used test equipment products for sale | AccuSource Electronics
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
A megger test?? I'm talking something that you could just wrap around the cables or do right at that location... Or clamp around the cables For a megget don't you have to be a both ends of the cable? We want to do this while the cables are live.Used Megger Test Equipment For Sale | AccuSource Electronics
Used Megger test equipment and other used test equipment products for sale | AccuSource Electronicsaccusrc.com
- Location
- Illinois
- Occupation
- retired electrician
Where exactly are you wanting to test for this voltage? From what point to what point do you think you have "stray" voltage. What is the reason for doing this testing?
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
We have to fill the conduit with a duct seal type of sealer. It's applied with caulk gun and tube of the sealer. Before we do this we want to check for any stray/leaky voltage. We may do it live.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
It sounds like you need to test for leakage current, not voltage.
ptonsparky
Tom
- Occupation
- EC - retired
Turn the power off. Disconnect the wires. Meg it. My Fluke was 400+-.
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Yes sorry
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
That was not carried in our bid...no way we can do that ...we d be royally screwed . We qualified shutdowns were not included so we may have an out. Btw does megger test for current ?
ptonsparky
Tom
- Occupation
- EC - retired
You’re screwed.
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Ok, hopefully someone can help with suggestions to mitigate the damage.
Would you apply this to a conduit with live 600v cables?
Would you apply this to a conduit with live 600v cables?
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rambojoe
Senior Member
- Location
- phoenix az
- Occupation
- Wireman
Voltage leakage will be apparent from testing in 2 locations...anyway-
A private megger guy isnt that much...
A private megger guy isnt that much...
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
None at all. Just a safety think . One of the guys said he'll put the sealant in live and another wont ...we want to at least mUbe test so there no start current or voltage but something that will take minimal time to do
- Location
- Illinois
- Occupation
- retired electrician
As I recall the OSHA rules for being in a manhole with energized conductors requires Level 4 arc flash protection, even where the conductors are insulated.
Not sure that there is any test that will accomplish what you want. Maybe a voltage probe with one end against the conductor and the other in the earth outside of the manhole, but it would have to be a low resistance meter, as the high resistance digital meter will very likely show voltage.
Not sure that there is any test that will accomplish what you want. Maybe a voltage probe with one end against the conductor and the other in the earth outside of the manhole, but it would have to be a low resistance meter, as the high resistance digital meter will very likely show voltage.
Shaneyj
Senior Member
- Location
- Katy, Texas
- Occupation
- Project Engineer
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
What's that?
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Anyone have input on this?Ok, hopefully someone can help with suggestions to mitigate the damage.
Would you apply this to a conduit with live 600v cables?
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Polywater's FST Foam Duct Sealant has a track record for providing durable and reliable protection in the toughest environments. Find out more and get a quote.www.polywater.com