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Medium Voltage Power Cable

XLPE ( Cross linked polyethylene) cable constitutes the best cable for transmission and distribution lines because of its excellent electrical and physical properties. These cables have the advantage of simplicity in construction, lightness in weight;
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1. Main Application

XLPE ( Cross linked polyethylene) cable constitutes the best cable for transmission and distribution lines because of its excellent electrical and physical properties. These cables have the advantage of simplicity in construction, lightness in weight; convenience in application besides its excellent electrical, thermal, mechanical and anti-chemical corrosion properties. It can also be laid with no limitation of level difference along the route.

2. Standards

GB/12706-2008, IEC60502-2, IEC60228, IEC60332, BS6622, and ICEA S-66-524 ect.

3. Products Type

Chinese Type Description Application
Cu Al
YJV YJLV Cu conductor ( Al conductor) XLPE insulated PVC sheathed power cable Laying indoors, in tunnel, fixed on the bracket, pipe and buried in the soil, the cable can not bear external mechanical forces.
YJY YJLY Cu conductor ( Al conductor) XLPE insulated PE sheathed power cable
YJV22 YJLV22 Cu conductor ( Al conductor) XLPE insulated double of steel tape armoured PE sheathed power cable For laying indoors, in tunnel, cable trench, or direct in ground, able to bear external mechanical forces, but unable to bear large pulling force.
YJV23 YJLV23 Cu conductor ( Al conductor) XLPE insulated double of steel  tape armoured PVC sheathed power cable
YJV62 YJLV62 Cu conductor ( Al conductor) XLPE insulated double of aluminum  tape armoured PVC sheathed power cable
YJV32 YJLV32 Cu conductor ( Al conductor) XLPE insulated steel wire armoured PVC sheathed power cable   For laying indoors, in tunnel, cable trench, well or direct in ground, able to bear external mechanical forces and certain pulling force.
YJV33 YJLV33 Cu conductor ( Al conductor) XLPE insulated steel wire armoured PE sheathed power cable
YJV72 YJLV72 Cu conductor ( Al conductor) XLPE insulated aluminum wire armoured PE sheathed power cable

Note: RONGHUA also can produce “ Flame-Retardant Series”, “Fire-Resistant Series”, “ Low Smoke Halogen Free ( LSHF/LSOH) Series”, “ Low Smoke Low Halogen (LSLH) Series”, etc. Power cable as customer required.

Performance in line with IEC 60332, IEC61034, IEC60745 requirements.

4. Production Range

Rated Voltage U0/U (Um)(KV): 3.6/6(7.2), 6/6(7.2), 6/10(12.0), 8.7/10(12), 8.7/15(17.5), 12/20(24.0), 18/30(36.0), 21/35(40.5), 26/35(40.5)

No. Of cores : 1, 3

Nominal Cross Section (mm2) : 25~630

Note:

U0: Rated power-frequency voltage between conductor and earth or armour, metal sheath or screen for which the cable is suitable.

U: Rated power -frequency voltage between phase conductors for which the cable is suitable.

Um: Maximum value of the highest system voltage between phase conductors for which the cable is suitable.

5. Construction

Conductor: Plain annealed stranded compacted circular copper or aluminum conductor to IEC60228 class2

Conductor Screen: Extruded semi-conductive compound.

Insulation: XLPE( cross-linked polyethylene) rated at 90℃

Insulation Screen: Extruded semi-conductive compound

Metallic Screen: copper tape or a concentric layer of copper wires

Colour for core indentification : Red, yellow, blue tape shall be applied between insulation screen and metallic screen ( The aboved identifying can be changed as order).

Assembly: Three screened cores are laid up together, if necessary filled with non hygroscopic material compatible with insulation and covered with a layer of PVC sheath.

Inner Sheath: Extruded layer of PVC ST2 or PE, LSZH

Armour: Double of galvanized steel tape or galvanized steel wire for three core power cable. Double of aluminum tape or aluminum wire for single power cable.

Outer Sheath: PVC types ST2 to IEC60502 or PE, LSZH.

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