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PVC insulated power cables Featured Image

PVC insulated power cables

PVC insulated cables and wires are divided into unsheathed cables for fixed wiring, sheathed cables for fixed wiring, light unsheathed flexible cables, general purpose sheathed flexible cables, installation wires and shielded wires, special purpose sheathed flexible cables Cables, PVC insulated flame-retardant/fire-resistant cables and other products.


  • PVC insulated power cables

Product Detail

Application

Parameters

Samples & Structures

Dimensions

Product Introduction

PVC insulated cables and wires are divided into unsheathed cables for fixed wiring, sheathed cables for fixed wiring, light unsheathed flexible cables, general purpose sheathed flexible cables, installation wires and shielded wires, special purpose sheathed flexible cables Cables, PVC insulated flame-retardant/fire-resistant cables and other products.

Features

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1. Mature manufacturing process, easy to form and process

2. Compared with other types of cable insulation materials, PVC insulated wire and cable is not only low in cost, but also in surface color difference, light darkness, printing, processing efficiency, hardness, conductor adhesion, mechanical physical properties and electrical properties of the wire itself, etc. All aspects can be effectively controlled; it has very good flame retardant properties, so PVC insulated wires and cables can easily reach the flame retardant grades stipulated in various standards.

3. The wire is generally within the specified weight range. The sheath used in the cloth wire is polyvinyl chloride insulation. Wire insulation should have a smooth appearance with clear surface printing. Seen from the end of the wire, the insulation should be even and not eccentric.

VV PVC insulated power cables have good electrical properties and chemical stability, and can be laid indoors, in tunnels, cable trenches, pipelines, inflammable and severely corrosive places. If you want to enhance its fire performance, you can customize flame retardant The main feature of the flame-retardant power cable is that it is not easy to catch fire or the flame delay is limited to a certain range. It is suitable for laying in hotels, stations, chemical industry, oil platforms, mines, power stations, subways, high-rise buildings, etc. that have resistance to cables. Where fuel requirements are required.

（一）PVC insulated power cables rated up to 0.6/1kV

Model、description and application

Model Description Application
VV
VLV		 PVC insulated & sheathed power cables For laying in doors or tunels, but unable to bear pressure andexternal mechanical forces
VV22
VLV22		 PVC insulated & sheathed, steel tape armored power cables For laying in doors, in tunels or underground, can bearpressure and external mechanical forces
VV32
VLV32		 PVC insulated & sheathed, fine steel wire armored power cables For laying in doors, in wells or under water, can bear certain pulling force.
VV42
VLV42		 PVC insulated & sheathed, heavy steel wire armored power cables For laying down wells or under water, can bear certain pullingforce.
NH ZR-VV
ZR-VLV		 PVC insulated & sheathed, flame retardant & fire resistant cables For laying in doors or tunels, but unable to bear pulling forceand pressure. On the sites where fire occurs frequently.
NH ZR-VV22
ZR-VLV22		 PVC insulated & sheathed, steel tape armored, flame retardant
& fire resistant cables		 For laying in doors, in tunels or underground, can bear pullingforce and pressure. On the sites where fire occurs frequently.
NH ZR-VV32
ZR-VLV32		 PVC insulated & sheathed, fine steel wire armored, flame retardant
& fire resistant cables		 For laying in doors, in wells or under water, can bear certainpulling force. On the sites where fire occurs frequently.
NH ZR-VV42
ZR-VLV42		 PVC insulated & sheathed, heavy steel wire armored, flame retardant
& fire resistant cables		 For laying down wells or under water, can bear certain pullingforce. On the sites where fire occurs frequently.

L—Aluminium conductor

Product range

Model No. of cores Rated voltage up to 0.6/1kV
Naminal cross-section mm2
Cu AI
VV VLV   NH ZR-VV   ZR-VLV
VV62 VLV62   NH ZR-VV62   ZR-VLV62
VV62 VLV62   NH ZR-VV62   ZR-VLV62		 1 1.5 ~ 630
4 ~ 630
16 ~ 630		 2.5 ~ 630
10 ~ 630
25 ~ 630
VV VLV   NH ZR-VV   ZR-VLV
VV22 VLV22   NH ZR-VV22   ZR-VLV22
VV32(42) VLV33(42)   NH ZR-VV32(42)   ZR-VLV32(42)		 2 1.5 ~185
4~185
6~185		 2.5 ~ 185
6 ~ 185
10 ~ 185
VV VLV   NH ZR-VV   ZR-VLV
VV22 VLV22   NH ZR-VV22   ZR-VLV22
VV32(42) VLV33(42)   NH ZR-VV32(42)   ZR-VLV32(42)		 3 1.5 ~ 300
4 ~ 300
6 ~ 300		 2.5 ~ 300
6 ~ 300
10 ~ 300
VV VLV   NH ZR-VV   ZR-VLV
VV62(62,62)     VLV62(62,62)
NH ZR-VV62(62,62)   ZR-VLV62(62,62)		 3+1;4 1.5 ~400
2.5 ~300		    6 ~ 300
VV VLV   NH ZR-VV   ZR-VLV
VV22(32,42)    VLV22(32,42)
NH ZR-VV22(32,42)   ZR-VLV22(32,42)		 5;4+1;3+2 1.5 ~400
2.5 ~300		    6 ~ 300

The sinole core amored cables are used in DC system only. If in AC system, t should use the armored layer of non-magnetic materal or magnetic isolation

Structure, technical data are listed in table1-8，except for conductor diameter.

Main properties

No. Test item Property
1 Structure      Listed to the tables
2 Conductor resistance      Listed to the tables
3 Withstand voltage test       A.C.3.5kV 5min      No breaken
4 Mechanical
properties
before aging		 Tensile strength Insulation      Min.12.5N/mm2
Sheath      Min.12.5N/mm2
Elongation at break Insulation      Min.150%
Sheath      Min.150%
Mechanical
properties and
flame-retardantproperties after
aging		 Tensile strength Insulation      100C+2℃7days Min.12.5N/mm2
Sheath      100C+2℃7days Min.12.5N/mm3
Varying valve of tensile strength Insulation      100C土2℃7days Max.土25%
Sheath      100C土2℃7days Max.土26%
Elongation at break Insulation      100C土2℃ 7days Min.150%
Sheath      100C土2℃ 7days Min.151%
Varying valve of tensile strength Insulation      100C土2℃7days Max.土25%
Sheath      100C土2℃7days Max.土25%
5 Flame-retardant property Comply with GB12660.5-90(CB)and IEC332-3(CB)
6 Constant of insulation resislivity Min at20℃ 36.7
Ki MQ km Ki M&. km Min at70℃ 0.037

PVC insulated & sheathed power cables rated up to 0.6/1kV

Structure, weight, conduct resistance of 0.6/1kV single core power cable

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Cable laying conditions and long-term loading allowed ampacity

Installation

The installation temperature should not be lower than 0℃, lf the ambient temperature is lower than 0℃ , the cableshould be preheated.

The bending radius of cable should not less than 10-15 times

After installation, the cable should withstand voltage test for15 min. 3.5Kv d.c.

In air

The sinale core cable aying in parallel,the distance between the cable’s center is 2 imes(for cables, which cross sectional area of conductor<185mm and90 mm (for cables, which cross sectional area of conductor>240mm’)。

Ambient temperature: 40℃

Max.temperature of conductor: 70℃

Rating factors under different ambient temperature :

Air temperature 20℃ 25℃ 35℃ 40℃ 45℃
Rating factors 1.12 1.06 0.94 0.87 0.79

Directly buried into ground

When the single core cables are installed separately,the distance between the cable’s center is 2 times of the cable diameter.

Ambient temperature: 25℃

Max,temperature of conductor: 70℃

Soil thermal resistivitv: 1.0℃ mW

Depth: 0.7m.

Rating factors under different ambient temperature

Air temperature 15℃ 20℃ 30℃ 35℃
Rating factors 1.11 1.05 0.94 0.88

Short circuit ratings

Max.temperature at short circuit Maxshort circuit current
130℃ l=94s //tA

Where: S–corss sectional area of conductor(mm?) t–short circuit duration(sec).

For details, please contact our salesman through the FAQ

For details, please contact our salesman through the FAQ

VV PVC insulated power cables have good electrical properties and chemical stability, and can be laid indoors, in tunnels, cable trenches, pipelines, inflammable and severely corrosive places. If you want to enhance its fire performance, you can customize flame retardant The main feature of the flame-retardant power cable is that it is not easy to catch fire or the flame delay is limited to a certain range. It is suitable for laying in hotels, stations, chemical industry, oil platforms, mines, power stations, subways, high-rise buildings, etc. that have resistance to cables. Where fuel requirements are required.

（一）PVC insulated power cables rated up to 0.6/1kV

Model、description and application

Model Description Application
VV
VLV		 PVC insulated & sheathed power cables For laying in doors or tunels, but unable to bear pressure andexternal mechanical forces
VV22
VLV22		 PVC insulated & sheathed, steel tape armored power cables For laying in doors, in tunels or underground, can bearpressure and external mechanical forces
VV32
VLV32		 PVC insulated & sheathed, fine steel wire armored power cables For laying in doors, in wells or under water, can bear certain pulling force.
VV42
VLV42		 PVC insulated & sheathed, heavy steel wire armored power cables For laying down wells or under water, can bear certain pullingforce.
NH ZR-VV
ZR-VLV		 PVC insulated & sheathed, flame retardant & fire resistant cables For laying in doors or tunels, but unable to bear pulling forceand pressure. On the sites where fire occurs frequently.
NH ZR-VV22
ZR-VLV22		 PVC insulated & sheathed, steel tape armored, flame retardant
& fire resistant cables		 For laying in doors, in tunels or underground, can bear pullingforce and pressure. On the sites where fire occurs frequently.
NH ZR-VV32
ZR-VLV32		 PVC insulated & sheathed, fine steel wire armored, flame retardant
& fire resistant cables		 For laying in doors, in wells or under water, can bear certainpulling force. On the sites where fire occurs frequently.
NH ZR-VV42
ZR-VLV42		 PVC insulated & sheathed, heavy steel wire armored, flame retardant
& fire resistant cables		 For laying down wells or under water, can bear certain pullingforce. On the sites where fire occurs frequently.

L—Aluminium conductor

Product range

Model No. of cores Rated voltage up to 0.6/1kV
Naminal cross-section mm2
Cu AI
VV VLV   NH ZR-VV   ZR-VLV
VV62 VLV62   NH ZR-VV62   ZR-VLV62
VV62 VLV62   NH ZR-VV62   ZR-VLV62		 1 1.5 ~ 630
4 ~ 630
16 ~ 630		 2.5 ~ 630
10 ~ 630
25 ~ 630
VV VLV   NH ZR-VV   ZR-VLV
VV22 VLV22   NH ZR-VV22   ZR-VLV22
VV32(42) VLV33(42)   NH ZR-VV32(42)   ZR-VLV32(42)		 2 1.5 ~185
4~185
6~185		 2.5 ~ 185
6 ~ 185
10 ~ 185
VV VLV   NH ZR-VV   ZR-VLV
VV22 VLV22   NH ZR-VV22   ZR-VLV22
VV32(42) VLV33(42)   NH ZR-VV32(42)   ZR-VLV32(42)		 3 1.5 ~ 300
4 ~ 300
6 ~ 300		 2.5 ~ 300
6 ~ 300
10 ~ 300
VV VLV   NH ZR-VV   ZR-VLV
VV62(62,62)     VLV62(62,62)
NH ZR-VV62(62,62)   ZR-VLV62(62,62)		 3+1;4 1.5 ~400
2.5 ~300		    6 ~ 300
VV VLV   NH ZR-VV   ZR-VLV
VV22(32,42)    VLV22(32,42)
NH ZR-VV22(32,42)   ZR-VLV22(32,42)		 5;4+1;3+2 1.5 ~400
2.5 ~300		    6 ~ 300

The sinole core amored cables are used in DC system only. If in AC system, t should use the armored layer of non-magnetic materal or magnetic isolation

Structure, technical data are listed in table1-8，except for conductor diameter.

Main properties

No. Test item Property
1 Structure      Listed to the tables
2 Conductor resistance      Listed to the tables
3 Withstand voltage test       A.C.3.5kV 5min      No breaken
4 Mechanical
properties
before aging		 Tensile strength Insulation      Min.12.5N/mm2
Sheath      Min.12.5N/mm2
Elongation at break Insulation      Min.150%
Sheath      Min.150%
Mechanical
properties and
flame-retardantproperties after
aging		 Tensile strength Insulation      100C+2℃7days Min.12.5N/mm2
Sheath      100C+2℃7days Min.12.5N/mm3
Varying valve of tensile strength Insulation      100C土2℃7days Max.土25%
Sheath      100C土2℃7days Max.土26%
Elongation at break Insulation      100C土2℃ 7days Min.150%
Sheath      100C土2℃ 7days Min.151%
Varying valve of tensile strength Insulation      100C土2℃7days Max.土25%
Sheath      100C土2℃7days Max.土25%
5 Flame-retardant property Comply with GB12660.5-90(CB)and IEC332-3(CB)
6 Constant of insulation resislivity Min at20℃ 36.7
Ki MQ km Ki M&. km Min at70℃ 0.037

PVC insulated & sheathed power cables rated up to 0.6/1kV

Structure, weight, conduct resistance of 0.6/1kV single core power cable

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Cable laying conditions and long-term loading allowed ampacity

Installation

The installation temperature should not be lower than 0℃, lf the ambient temperature is lower than 0℃ , the cableshould be preheated.

The bending radius of cable should not less than 10-15 times

After installation, the cable should withstand voltage test for15 min. 3.5Kv d.c.

In air

The sinale core cable aying in parallel,the distance between the cable’s center is 2 imes(for cables, which cross sectional area of conductor<185mm and90 mm (for cables, which cross sectional area of conductor>240mm’)。

Ambient temperature: 40℃

Max.temperature of conductor: 70℃

Rating factors under different ambient temperature :

Air temperature 20℃ 25℃ 35℃ 40℃ 45℃
Rating factors 1.12 1.06 0.94 0.87 0.79

Directly buried into ground

When the single core cables are installed separately,the distance between the cable’s center is 2 times of the cable diameter.

Ambient temperature: 25℃

Max,temperature of conductor: 70℃

Soil thermal resistivitv: 1.0℃ mW

Depth: 0.7m.

Rating factors under different ambient temperature

Air temperature 15℃ 20℃ 30℃ 35℃
Rating factors 1.11 1.05 0.94 0.88

Short circuit ratings

Max.temperature at short circuit Maxshort circuit current
130℃ l=94s //tA

Where: S–corss sectional area of conductor(mm?) t–short circuit duration(sec).

For details, please contact our salesman through the FAQ

For details, please contact our salesman through the FAQ

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