EHV Cable Joint – LS Cable 240kV 3000 KCMIL XLPE Cable Circuit

Published 09 Oct 2019

• Application: EHV Cable Joint – LS Cable 240kV 3000 KCMIL XLPE Cable Circuit
• Cable Type: LS Cable 240kV 3000 KCMIL XLPE Cable Circuit
• Cable Jointer: Andy O’Malley (IBEW 258 EHV Cable Jointer / Cable Splicer – Allteck Line Contractors)

EHV Cable Joint

Clean joint bay and cable preparation with copper conductor, aluminium foil laminate with aluminium screen wires. Clean and perfectly straight cable installations such as this are unfortunately rare.

Cable jointing skill-sets are not automatically transferred up the voltage classes from 11kV to 33kV and onto 240kV.

Different techniques and technologies are applied to jointing EHV cables including polymeric, paper lead, oil, fluid-filled and transition jointing using ABB, Ericsson, Nexans, Brugg, Pfisterer Ixosil, Silec and Tyco type products.

Should you require any assistance with the selection or specification of cable joints or terminations please do not hesitate to contact us.

LS Cable & Systems

Extra-high voltage cables require the power network to go underground due to continuous increase of energy demand, larger transmission capacity, reliability of energy supply, safety and aesthetic issues. Among these cables, XLPE insulation cables are used widely due to their ease of handling, simpler jointing connectivity and maintenance, outstanding electrical features and other benefits.

XLPE Cables

The basic material for XLPE is polyethylene, which is chemically transformed to cross-linked polyethylene (XLPE) through the cross-link reaction of organic peroxides. The cross-link method for polyethylene was developed in the United States during the 1950’s and has since been continuously developed for application to higher voltage cables. Higher voltages are increasingly being required and now 500kV XLPE cables have already been commercialized by LS Cables.

Further Reading

• 132kV Termination Pfisterer IXOSIL EST SUB Cable Termination
• ABB NKT SMPGB Straight Cable Joint 420kV
• 3M Scotchcast Cable Joint – Resin & Taped Manhole Cable Splice 600/1000V

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Further Reading

• EHV Cables – 66kV 500kV XLPE Insulated Cables LS Cables Size: 5.70 MB