66/69kV Cable System Performance | Jointer Error Concerns
Published 06 Nov 2020
66kV
Are you suffering performance issues with your HV Cable Systems?
Our clients have been asking us to provide information on 66/69kV class cable systems.
So here is a view from our database of over 200,000 factory comparable (50/60Hz PD with 5pC sensitivity) tests on recently installed 66/69kV cable systems. The data is not pretty.
We have a ways to go to improve performance on these cable systems.
On the basis of a few projects including over 350 cable systems, 52% (from a 3 phase performance stand point) have at least one substandard component.
Terminations are the worst offenders at 15.5% substandard whereas Joints fair a little better at 3.8% substandard.
We have performed dissections on several occasions. The issues? Installation error.
Posted by Ben Lanz | Director, Technology & Test Systems Availability at IMCORP
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Thorne & Derrick are national distributors of LV, MV & HV Cable Installation, Jointing, Substation & Electrical Equipment – servicing businesses involved in cabling, jointing, substation, earthing, overhead line and electrical construction at LV, 11kV, 33kV, 66kV and EHV. Supplying a complete range of power cable accessories to support the installation and maintenance of low/medium and high voltage voltage power systems:
- Slip-on Cable Terminations
- Cold-shrink Cable Terminations
- Heat-shrink Cable Terminations
- Cable Joints – Heat & Cold-shrink
- Separable Connectors (Euromold)
- Surge Arresters & Switchgear/Transformer Bushings
Key Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV

Joints Terminations Connectors | Stock Service Support from Thorne & Derrick