6/35kV Aluminum conductor XLPE insulated XLPE sheathed steel tape underground armoured power cable Z(K)-YJLV22

 Standards

The products are manufactured according to the standards of GB/T 12706.2 in power cables with extruded insulation and their accessories for rated voltages from 1kV(Um=1.2kV) up to 35kV(Um=40.5kV)  in part 2 cables for rated voltages from 6kV(Um=7.2kV)up to 30kV(Um=36kV) and the standard of GB/T 12706.3 in part 3: cables for rated voltages of 35kV(Um=40.5kV)

Property and Function

For cross-linked polyethylene(XLPE) insulated power cable,either chemical method or physical method had been employed to transform the molecular structure of PE from linear chain into three-dimensional network, that is thermoplastic PE had been transformed into thermosetting XLPE. After cross-linking, the heat-mechanical properties of the cable have been greatly improveed while its excellent electrical peoperties are still maintained.

The nominal conductor operating temperature of XLPE insulated power cable is 90°C.

Model Specification

Typical Constructional Specification

1. Conductor

Conductor is made up of copper or aluminum. Cables below 800 mm2 stranded by drawing and pressing are characterized with smooth, round and high pressing coefficient; Milliken Conductor is applied to cables from 800 mm2 to 3000mm2 to reduce the skin effect and to increase the transmission capacity.

2. Semi-conducting Screen

Free-strippable and super-smooth cross-linked semi-conducting materials are used in both the conductor screen and the insulation screen. The three layers of conductor screen, insulation layer and insulation screen are coextruded to keep the close link between the insulation layer and the semi-conducting layer and to keep a smooth interface.

3.Insulation

 Super-purified insulation materials are used and the purification degree of feeding room reaches 100. Moreover, in the production process, complete-sealing MOTAN feeding system is used to ensure the purity of materials. VCV production line together with SIKORA on-line eccentricity control system is adopted to monitor the insulationeccentricity.

Eccentricity of insulation layer shall not exceed 5%, i.e.(tmax-tmin)/tmax C100% ≤5%

4. Buffer layer and longitudinal Water-resistant layer

Buffer layer adopts semi-conducting flexible materials or flexible water resistant expansion materials with longitudinal water-resistant performance to wrap between the insulation screen and the corrugated aluminum sheath to satisfy and compensate for thermal-expansion during the operation of cables.

5.Corrugated Aluminum Sheath

Corrugated aluminum sheath should meet the needs of mechanical properties and short-circuit capacity, and should have radial water-resistant perfomance. The continual process of aluminum sheath extruding line has been developed under the combined effort of both BWE Company in British and our company,which adopts a method of feeding the aluminum bar and virtually realizes the continual extrusion, and which reaches a high producing efficiency, convenient operation, and energy economization. The slot-free aluminum sheath is either spiral or circular and that of the water- resistant cables is circular.

6.Separation Layer

Outer of the aluminum sheath is applied with asphalt anticorrosive coating.

7. Outer Sheath

The outer sheath of cables is made of polyvinyl chloride or polyethylene, and either the double-layer co-extrusion or triple-extrusion or triple-extrusion technology is used to extrude the conducting layer to the extrude the conducting layer to the surface of the outer layer of cables. The intergrated non-metallic outer sheath with properties of anti-flaming, termite-proof, or anticorrosive type is for your choice.

 Products Show

Certificates

1. Any inquiries will be replied within 24 hours.

2. OEM/ODM available.

1) Printing your logo on the cable.

2) Printing your logo on the pull box, wooden drum according to your design 

3) Any your idea on cable, packing box are available.

3. High quality, reasonable and competitive price, fast lead time.

4. Good after-Sale Service.

1) All products will have been strictly Quality Checked in house before packing. 

2) All products will be well packed before shipping.

5. Faster delivery.

Sample order in stock, and 3-7 days for bulk production.

6. Payment

We can accept payment methods: L/C, T/T, Western Union,other payment can negotiation.