Successful testing of 345-kV XLPE cables and premolded joints at IREQ

Journal Article · Tue Apr 01 04:00:00 EST 1997 · IEEE Transactions on Power Delivery

DOI:https://doi.org/10.1109/61.584319· OSTI ID:492171

Parpal, J L; Awad, R; Choquette, M; Becker, J; Hiivala, L; Chatterjee, S; Kojima, T; Rosevear, R D; Morelli, O

Extruded polymeric cables and accessories are an alternative to self-contained fluid filled (SCFF) cables for Extra-High-Voltage (EHV) systems. Crosslinked polyethylene (XLPE) insulated cables have many advantages over the traditional fluid-filled pressurized cable system with the elimination of the hydraulic system and the associated equipment and complications during the installation and operation/maintenance of such systems. Other advantages of the extruded cable system arise from the new accessory technologies and the use of splices and terminations that are prefabricated and pretested in the factory and require less time to install on site. Concerns over the long term reliability of high voltage cable systems, in particular the accessories and the lack of service experience above 300 kV led to the decision of Hydro-Quebec to carry out a prequalification (long-term) test program to assess the reliability of the cable materials and to verify the cable and accessory installation methods to be employed. The cables were installed in duct banks and manholes simulating actual installation conditions used in Hydro-Quebec underground cable network. This paper describes the program and results of the prequalification tests of 345-kV XLPE cables and accessories performed at Hydro-Quebec`s Research Institute (IREQ) in partnership with three international cable manufacturers, Alcatel, Fujikura and Pirelli.

• OSTI ID: 492171
• Report Number(s): CONF-9609171--
• Journal Information: IEEE Transactions on Power Delivery, Journal Name: IEEE Transactions on Power Delivery Journal Issue: 2 Vol. 12; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
EHV AC SYSTEMS
ELECTRIC CABLES
FIELD TESTS
JOINTS
MATERIALS TESTING