Thanks a lot for your reply.
However, the situation does not match your description.
After the testing, I striped the joint one layer by one layer and meggered each layer as well. Then I found out there is one heat shrink stress control tubing with very low IR reading. When I did the testing...
Hi,
I am working on a 33kV cable project and using the heat shrink joint kits for the In-Line Joints.
I meggered the cable before jointing every time and the 5kV DC IR (core - sheath) reading was always around 400GOMHS/1min, and I also meggered the cable with the new In-Line joint after 3...
To my experience & knowledge, VLF is too strong for cable joints, especially for aged cables. If you only want to test the PD in cable but not a HV withstand test, maybe the OWTS testing is the better option. Even for HV withstand test, I recommend AC resonant testing with PD testing. The only...
