Commonly used cable specifications

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1. Low-smoke halogen-free series cable products

Commonly used cable specifications: low-smoke halogen-free flame-retardant series of cables and wires, wdz- (plus common cable and wire code) Note: flame-retardant is generally divided into four categories: a, b, c, d, for example: wdzd-vy wdza-yjy wdzb-yjv23 wdzc-by wdz-bvy wdzb-kyjy wdzc-kvv23 etc.;


It is used for transmission and distribution power lines laying indoors, cable trays, cable ducts and other fixed occasions with rated AC voltage u0/u of 35kv and below. It is mainly used in high-rise buildings, hospitals, theaters, power stations, subways, tunnels, ships, and offshore For oil platforms, radio and television centers, computer centers and other places with densely populated and enclosed spaces, the rated voltage of the cables should not be lower than the nominal voltage of the power supply system.


2. Copper (aluminum) core XLPE insulated aerial cables with rated voltages of 10kv and 1kv

jkyj, jklyj—Copper (aluminum) core XLPE insulated aerial cables

jky, jkly—Copper (aluminum) core XLPE insulated overhead cable

jkv, jklv—copper (aluminum) core PVC insulated overhead cable (only applicable to 1kv)


It is used for fixed-laying indoor and outdoor overhead transmission and distribution power lines with rated AC voltage u0/u of 10kv and 1kv. More than 8h, the cumulative annual system does not exceed 125h.


3. Copper (aluminum) core PVC insulated and PVC (polyethylene) sheathed power cable

vv, vlv a copper (aluminum) core PVC insulated, PVC sheathed power cable

vv, vlv a copper (aluminum) core PVC insulated, polyethylene sheathed power cable


It is used for transmission and distribution power lines that are fixedly laid indoors, overhead, cable channels, and pipelines with a rated AC voltage uo/u of 0.6/1kv and below.

1 core: 1.5-630mm

2 cores: 2*1. 5--2*185mm

3 cores: 3*1.5-3*300mm

4 cores: 4*4-4*300mm

3 1 core: 3*4 1*2.5-3*300 1*150mm

3 2 cores: 3*4 1*2.5-3*300 2*150mm

4 1 core: 4*4 1*2.5-4*300 1*150mm


4. Copper (aluminum) core PVC insulated (armored) PVC (polyethylene) sheathed power cable 

vv22, vlv22-copper (aluminum) core PVC insulated PVC sheathed, steel tape armored power cable

vv23, vlv23-copper (aluminum) core PVC insulated polyethylene sheathed, steel tape armored power cable 


It is used for transmission and distribution power lines that are fixedly laid indoors, in cable channels, pipelines, or directly buried in fixed occasions such as large mechanical external forces, where the rated AC voltage u/0u is 0.6/1kv and below.

1 core: 10~630 mm2

2 cores: 2ⅹ4~2ⅹ185 mm2

3 cores: 3ⅹ4~3ⅹ400 mm2

4 cores: 4ⅹ4~4ⅹ400 mm2

3 1 core: 3ⅹ4 1ⅹ2.5~3ⅹ400 1ⅹ185 mm2

3 2 cores: 3ⅹ4 2ⅹ2.5~3ⅹ400 2ⅹ185 mm2

4 1 core: 4ⅹ4 1ⅹ2.5~4ⅹ400 1ⅹ185 mm2



5. Copper core PVC insulated (armored) PVC sheathed fire-resistant wire and cable

Commonly used cable specifications: 

nh-2271ec01 (bv) -450/750v copper core PVC insulated fire-resistant electrical wire

nh-bvv-[nh-2271ec10(bvv)]-300/500v copper core PVC insulated PVC sheathed fire-resistant electric wire

nh-vv-0.6/1kv copper core PVC insulated PVC sheathed fire-resistant power cable

nh-vv22-0.6/1kv copper core PVC insulated, steel tape armored PVC sheathed fire-resistant power cable

nh-kvv-450/750v copper core PVC insulated, PVC sheathed fire-resistant control cable

nh-vv22-450/750v copper core PVC insulated, steel tape armored PVC sheathed fire-resistant control cable


This product is used for PVC insulated fire-resistant cables with AC rated voltages of 0.6/1kv and below. It is suitable for fixed laying occasions where fire-prone areas can continue to operate for a certain period of time in the case of fire.


6. Low-smoke and low-halogen products, low-smoke and low-halogen flame-retardant cables and wires

ddz- (plus common cable and wire code) Note: Flame retardant is generally divided into four categories: a, b, c, d, for example: ddzc-vv ddza-yjv ddza-yjv22 ddzc-bv ddzb-bvv ddzc-kyjv ddza-kvv22, etc.


It is used for transmission and distribution power lines in fixed places (flexible cables are mobile) laid indoors with rated AC voltage u0/u of 35kv and below, cable trays, cable ducts, etc. It is mainly used in crowded public places and underground public facilities The rated voltage of the cable should not be lower than the nominal voltage of the power supply system.


7. XLPE insulated power cable

yjy yjlv Copper (aluminum) core XLPE insulated and PVC sheathed power cable

yjy22 yjlv22 copper (aluminum) core XLPE insulated, steel tape armored PVC sheathed power cable.


It is used for transmission and distribution power lines fixedly laid in indoor cable channels and pipelines with a rated AC voltage uou of 0.6/1kv and below.


8. Copper (aluminum) core flame-retardant PVC insulated (armored) PVC sheathed wire and cable

Commonly used cable specifications: zr-227iec01 (bv), zr-blv-copper (aluminum) core flame-retardant PVC insulated wire

zr-bvv, zr-blvv, zr-227iec10 (bvv)-copper (aluminum) core flame-retardant PVC insulated PVC sheathed cable (wire)

zr-vv, zr-vlv- copper (aluminum) core flame-retardant PVC insulated and PVC sheathed power cable

zr-vv22, zr-vlv22- copper (aluminum) core flame-retardant PVC insulated steel tape armored PVC sheathed power cable

zr-kvv-copper core flame-retardant PVC insulated PVC sheathed control cable

zr-kvv2- Copper core flame-retardant PVC insulated steel tape armored PVC sheathed control cable


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