HIPOT testing
HIPOT testing
(OP)
Hello Guys,
I have a question about HIPOT testing. I have seen a setup at work where they test insulation on the wire. The wire is immersed in saline. Essentially it is two wires which are soldered at one end and insulated accordingly.
From what i understand in order to do HIPOT test on such a setup you would need to raise the potential on both the wires ( or since they are soldered, its a single wire. So raise potential on one and leave other unconnected).
Anyways the question is doesnt the saline have to be in some kind of a metal bath (with the bath chassis grounded) to accomplish this? How does one close the circuit with just the wire in saline and no -ve or ground anywhere else?
I have a question about HIPOT testing. I have seen a setup at work where they test insulation on the wire. The wire is immersed in saline. Essentially it is two wires which are soldered at one end and insulated accordingly.
From what i understand in order to do HIPOT test on such a setup you would need to raise the potential on both the wires ( or since they are soldered, its a single wire. So raise potential on one and leave other unconnected).
Anyways the question is doesnt the saline have to be in some kind of a metal bath (with the bath chassis grounded) to accomplish this? How does one close the circuit with just the wire in saline and no -ve or ground anywhere else?





RE: HIPOT testing
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: HIPOT testing
So the CL ions will lose electrons if there is a leakage and eventually at some point you have to replace saline?
RE: HIPOT testing
A. you're supposed to current limit, in any case
B. the test time is quite short
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: HIPOT testing
The electrode that goes into the saline solution will need to have good anti-corrosion properties.
RE: HIPOT testing
RE: HIPOT testing
Also impress a test voltage which is approximately 80% of the fisrt commissioning/acceptance test made on the cable.
Sorry for being a late entrant in this thread.
Regards