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Cu core Low-smoke&Halogen PVC Insulated Armoured Power Cable
Application:
It is suitable for transmission line with a rated AC voltage U0/U 3.6/6KV and below.
Executive Standard: GB/T12706-2008 ,equivalent to IEC502(83)
Operational Performances:
1. Working temperature:
For general type, not over 70°C as the maximum
For 105°C flame-retardant material, not over 105°C as the maximum
For 135°C flame-retardant material, not over 135°C as the maximum
2. Lowest ambient temperature:-40°C for fixed laying,-20°C for non-fixed laying
3. Rated voltage U0/U:0.6/1kV, 3.6/6kV
4. Min.bending radius:not less than 10 times of outer diameter of cable if without armor, and not less than 15 times of cable outer diameter provided the cable is armored.
5.Short-circuit condition:The maximum temperature of cable conductor will not exceed 175°Cunder short-circuit condition(longest time of 5 seconds)
Main Technical Data
1,Material:
Table 1:Flame-retardant Technical Data of Varieties of Materials
Item | Technical Data | ||
General flame-retardant PVC | Low smoke and low halogen material | Low smoke and halogen-free material | |
Oxygen index(%) | 30-20 | 31-33 | 36-40 |
Smoke density | 600 | 300 | With flame:50 without flame:260 |
Hydrogen halide release (mg/g) | 580 | 100 | 0.5 |
2,Product
Table 2:Main Performances of Product
Serial No. | Item | Performance | ||
1 | Structure | Attached Sketch* | ||
2 | Conductor resistance | As per GB3956-1996 | ||
3 | Voltage-withstand test | No breakdown | ||
4 | Mechanical | Tensile strength | Insulation | Min.12.5N/mm2 |
Sheath | Min.12.5N/mm2 | |||
Elongation at break | Insulation | Min.150% | ||
Sheath | Min.150% | |||
Mechanical property after aging | Tensile strength | Insulation | 100°C±2°C,Min. 12.5N/mm2 in 7 days | |
Sheath | 100°C±2°C,Min. 12.5N/mm2 in 7 days | |||
Change rate | Insulation | 100°C±2°C,Max.±25% in 7 days | ||
Sheath | 100°C±2°C,Max.±25% in 7 days | |||
Elongation at break | Insulation | 100°C±2°C, Min.150% in 7 days | ||
Sheath | 100°C±2°C, Min.150% in 7 days | |||
5 | Flame-retardant feature | In compliance with GB/T12666.5-1990(Type CB) and IEC332-3 (Type CB) | ||
| Insulation resistance constant Ki MΩ·km | Minimum at 20°C | 36.7 | |
At 70°C | 0.037 | |||
3,Color Code of Insulation Core: Complies with Requirements of National Standard GB6995.5-86
2-core | Red,Blue | 4-core | Red,Yellow,Green,Blue |
3-core | Red,Yellow,Green | 5-core | Red,Yellow,Green,Black,Blue |
4,Vary in cross-section area, the four and five's
5,Basic Type and designation
Type | Designation of product |
VV | Cu core PVC insulated&sheathed power cable |
VLV | Al core PVC insulated PVC sheathed power cable |
VV22 | Cu core PVC insulated&sheathed armored power cable |
ZR105-VV | Cu core flame-retardant (105°C)PVC insulated&sheathed power cable |
ZR135-VV | Cu core flame-retardant (135°C)PVC insulated&sheathed power cable |
ZR105-VV22 | Cu core flame-retardant(105°C)PVC insulated&sheathed armored power cable |
ZR135-VV22 | Cu core flame-retardant(135°C)PVC insulated&sheathed armored power cable |
ZR105-VLV22 | Al core flame-retardant(105°C) PVC insulated&sheathed power cable |
ZR135-VLV22 | Al core flame-retardant(135°C)PVC insulated&sheathed power cable |
ZR105-VDVD | Cu core low-smoke&halogen PVC insulated&sheathed power cable |
ZR135-VDVD | Cu core low-smoke&halogen 135°C PO insulated&sheathed power cable |
ZR105-VDVD22 | Cu core low-smoke&halogen PVC insulated&sheathed steel tape armored power cable |
ZR135-VDVD22 | Cu core low-smoke&halogen 135°CPO insulated&sheathed steel tape armored power cable |
VV32 | Cu core PVC insulated&sheathed thin steel wire armored power cable |
VV42 | Cu core PVC insulated&sheathed thick steel wire armored porter cable |
ZR105-VV32 | Cu core flame-retardant (105°C)PVC insulated and sheathed thin steel wire armored power cable |
Type explanation
Code and definition
Item | Code | Definition |
Flame-retardant code | / ZR | Non flame-retardant can he omitted Flame-retardant |
Insulation material | V VD | PVC Low-smoke & halogen material |
Sheath material | V VD | PVC Low-smoke & halogen material |
Armor material | 22 32 42 | Steel tape armor Thin steel wire armor Thick steel wire armor |
Class of heat-resistance | 70 90 105 135 | Max. operating temp. is 70°C Max. operating temp. is 90°C Max. operating temp. is 105°C Max. operating temp. is 135°C |
Rated voltage | 0.6/1kV 3.6/6kV | Rated voltage U0/U is 0.6/1kV Rated voltage U0/U is 3.6/6kV |
Specification Size
Marking Examples:
Example 1:Copper-core PVC insulated and sheathed steel-tape armored 3+1 type, main core section is 50mm2 and that of neutral core is 25mm2, such power cable can be represented by: VV22 3X50+1X25
Example 2:Rated voltage is 0.6/1kV copper-core flame retardant(135°C)PVC insulated and sheathed, small-gauge steel wire armored, 4+1 type, main core section is 70mm2 and that of neutral core is 35mm2, such power cable can be represented by: ZR135-VV 0.6/1kV 4 X 70+1x35
Example 3: Rated voltage is 0.6/1kV, copper-core flame-retardant(105°C)PVC insulated and sheathed, steel tape armored, 3+2 type, main core section is 185mm2 and that of neutral core is 95mm2, such power cable can be represented by: ZR105 -VV22 0.6/1kV 3 X 185+2 x 95
Example 4: Rated voltage is 0.6/1kV, aluminum core PVC insulated and sheathed, 3+1 type, main core section is 50mm2 and that of neutral core is 25mm2, such power cable can be represented by: VLV 0.6/1kV 3 X 50+1 X 25
Example 5: Rated voltage is 0.6/1kV,aluminum core flame-retardant PVC (105°C)insulated and PVC sheathed power cable with main core section to be 50mm2 and that of neutral core is 25mm2, it can be represented by: ZR105-VLV 0.6/1kV 3 X 50+1 X 25
Example 6: Rated voltage is 0.6/1kV,aluminum core flame-retardant PVC (135°C)insulated and PVC sheathed power cable with main core section to be 50mm2 and that of neutral core is 25mm2, it can be represented by:ZR135-VLV 0.6/1kV 3 X 50+1 x 25
