XLPE insulated cables are widely accepted by users for its high conductor working temperature, excellent electrical performance, large transmission capacity, simple construction and easy installation. The many years’ service has proven that XLPE insulated submarine cables are dependable, recoverable after damage and are highly recognized and promoted by users.
So far, XLPE insulated submarine cables are available in two forms. One is an aluminum-plastic strip integrated waterproofing construction and the other is a lead-covered integrated waterproofing construction. As compared, the former is less costly while the latter is more watertight. However, both submarine cables provide the same water resistance for the conductor and water resistance for the waterproofing layer. With regard to the insulation material for XLPE insulated submarine cables, Dow Chemical (Union Carbide) or Borealis water-tree retardant XLPE insulation material is unexceptionally used. Water-tree retardant XLPE insulation material retards the growth of water tree and increases the service life of the cable. Mechanical protection of the cable is provided by steel armoring wire which is anticorrosive treated and whose mechanical strength (typically tensile strength) is decided by the diameter of the wire. Φ4mm wire is normally used. However, Φ6mm wire may also be used as required for the strength and Φ8mm wire is sometimes used for armoring purposes under extreme conditions.
|
Type |
Description |
Voltage rating |
Spec |
|
|
1-core |
3-core |
|||
|
HYJQ41 |
XLPE insulated alloy lead-sheathed integrated waterproofing wire-armored fiber-covered submarine cable |
6/10, 8.710, 12/20 |
50~1200 |
50~400 |
|
26/35 |
70~1200 |
70`300 |
||
|
64/110 |
240~3000 |
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||
|
HYJAY41 |
XLPE insulated aluminum-plastic strip integrated waterproofing wire-armored fiber-covered submarine cable |
6/10, 8.7/10, 12/20 |
50~1200 |
50~400 |
|
26/35 |
70~1200 |
70~300 |
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|
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