Rated voltage 6~35kV PVC insulated cable
Withstand voltage level
Rated voltage covers 6kV to 35kV, and the power frequency withstand voltage test standard is 1.5kV/5min without breakdown.
Temperature characteristics
The long-term allowable operating temperature of the conductor is 90℃, and the maximum withstand temperature is 250℃ when short-circuited (≤5s).
The laying environment temperature is required to be ≥0℃, and preheating is required in low temperature environments.
Conductor design
Copper core or aluminum core conductor, copper core has better conductivity, aluminum core has lower cost and light weight.
Multi-strand twisted structure enhances flexibility and tensile strength
Medium-Voltage Power Cables with Rated Voltage of 6~35kV Cross-Linked Polyethylene Insulation
1. Product Description
Medium-voltage power cables with polyethylene insulation are medium-voltage power transmission cables that use polyethylene material as the insulation layer.
They possess excellent electrical performance, mechanical performance, and environmental resistance, and are widely used in power transmission and distribution in urban power grids, industrial zones, large-scale buildings, and other locations.
These cables can withstand medium-voltage levels, ensuring the safety and stability of power transmission.
This section applies to cross-linked polyethylene extruded insulation power cables with a rated voltage of 6kV to 35kV, which are fixedly installed in distribution networks or industrial installations. 2.2 It applies to power cables with rated voltages of 3.6/6kV, 6/6kV, 6/10kV, 8.7/10kV, 8.7/15kV, 12/20kV, 18/20kV, 18/30kV, 21/35kV, and 26/35kV.
2. Executive Standards
· GB/T 12706.2-2020 Extruded Insulation Power Cables and Accessories with Rated Voltage from 1kV (Um=1.2kV) to 35kV (Um=40.5kV) - Part 2: Cables with Rated Voltage from 6kV (Um=7.2kV) to 30kV (Um=36kV)
· GB/T 12706.3-2020 Extruded Insulation Power Cables and Accessories with Rated Voltage from 1kV (Um=1.2kV) to 35kV (Um=40.5kV) - Part 3: Cables with Rated Voltage of 35kV
· GB/T 19666-2019 General Rules for Flame-Retardant and Fire-Resistant Wires, Cables, or Optical Cables
· GB/T 31840.2-2015 Aluminum Alloy Core Extruded Insulation Power Cables with Rated Voltage from 1kV (Um=1.2kV) to 35kV (Um=40.5kV) - Part 2: Cables with Rated Voltage from 6kV (Um=7.2kV) to 30kV (Um=36kV)
· GB/T 31840.3-2015 Aluminum Alloy Core Extruded Insulation Power Cables with Rated Voltage from 1kV (Um=1.2kV) to 35kV (Um=40.5kV) - Part 3: Cables with Rated Voltage of 35kV (Um=40.5kV)
3. Technical Parameters
Model | Product Name |
YJ(L, LH)V | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Polyvinyl Chloride Sheathed Power Cable |
YJ(L, LH)Y | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Polyethylene Sheathed Power Cable |
YJ(L, LH)V22 (62) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyvinyl Chloride Sheathed Power Cable |
YJ(L, LH)V23 (63) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyethylene Sheathed Power Cable |
YJ(L, LH)Y22 (62) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyvinyl Chloride Sheathed Power Cable |
YJ(L, LH)Y23 (63) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyethylene Sheathed Power Cable |
Z (A, B, C)-YJ(L, LH)V | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Polyvinyl Chloride Sheathed Flame-Retardant Power Cable |
Z (A, B, C)-YJ(L, LH)Y | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Polyethylene Sheathed Flame-Retardant Power Cable |
Z (A, B, C)-YJ(L, LH)V22 (62) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyvinyl Chloride Sheathed Flame-Retardant Power Cable |
Z (A, B, C)-YJ(L, LH)V23 (63) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyethylene Sheathed Flame-Retardant Power Cable |
Z (A, B, C)-YJ(L, LH)Y22 (62) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyvinyl Chloride Sheathed Flame-Retardant Power Cable |
Z (A, B, C)-YJ(L, LH)Y23 (63) | Copper (Aluminum, Aluminum Alloy) Core Cross-Linked Polyethylene Insulated Steel Tape Armored (Stainless Steel Tape) Polyethylene Sheathed Flame-Retardant Power Cable |
Serial No. | Conductor Nominal Cross-Sectional Area (mm²) | Assumed Conductor Outer Diameter (mm) | Maximum DC Resistance of Conductor at 20°C (Ω/km) - Copper Conductor | Maximum DC Resistance of Conductor at 20°C (Ω/km) - Aluminum/Aluminum Alloy | Maximum Allowable Short-Circuit Current of Conductor at 90°C - Copper Conductor | Maximum Allowable Short-Circuit Current of Conductor at 90°C - Aluminum/Aluminum Alloy |
1 | 10 | 3.6 | 1.83 | 3.08 | 1.51 | 0.99 |
2 | 16 | 4.5 | 1.15 | 1.91 | 2.39 | 1.56 |
3 | 25 | 5.6 | 0.727 | 1.20 | 3.69 | 2.42 |
4 | 35 | 6.7 | 0.524 | 0.868 | 5.15 | 3.37 |
5 | 50 | 8.0 | 0.387 | 0.641 | 7.31 | 4.79 |
6 | 70 | 10.2 | 0.268 | 0.443 | 9.4 | 6.68 |
7 | 95 | 11.0 | 0.193 | 0.320 | 13.8 | 9.03 |
8 | 120 | 12.4 | 0.153 | 0.253 | 17.4 | 11.4 |
9 | 150 | 13.8 | 0.124 | 0.206 | 21.7 | 14.2 |
10 | 185 | 15.3 | 0.0991 | 0.164 | 26.7 | 17.5 |
11 | 240 | 17.5 | 0.0754 | 0.125 | 34.6 | 22.6 |
12 | 300 | 19.5 | 0.0601 | 0.100 | 43.1 | 28.2 |
13 | 400 | - | 0.0470 | 0.0778 | 57.4 | 37.6 |
14 | 500 | 25.2 | 0.0366 | 0.0605 | 71.7 | 47.0 |
15 | 630 | 28.3 | 0.0283 | 0.0469 | 88.8 | 58.0 |
Serial No. | Conductor Nominal Cross-Sectional Area (mm²) | Nominal Insulation Thickness (mm) under Rated Voltage U (Um) - 3.6/6 (7.2) kV, 6/10 (12) kV | Nominal Insulation Thickness (mm) under Rated Voltage U (Um) - 6/6 (7.2) kV | Nominal Insulation Thickness (mm) under Rated Voltage U (Um) - 8.7/10 (12) kV, 8.7/15 (17.5) kV | Nominal Insulation Thickness (mm) under Rated Voltage U (Um) - 12/20 (24) kV | Nominal Insulation Thickness (mm) under Rated Voltage U (Um) - 18/20 (24) kV, 18/30 (36) kV | Nominal Insulation Thickness (mm) under Rated Voltage U (Um) - 21/35 (40.5) kV, 26/35 (40.5) kV |
1 | 10 | - | 2.5 | - | - | - | - |
2 | 16 | - | 2.5 | 3.4 | - | - | - |
3 | 25 | - | 2.5 | 3.4 | - | 4.5 | - |
4 | 35 | - | 2.5 | 3.4 | - | 4.5 | 5.5 |
5 | - | - | - | - | - | - | - |
4. Product Characteristics
Classification and Designation: Flame-retardant performance is divided into three categories: A, B, and C, denoted by the letters ZA, ZB, and ZC respectively. They are added before the model of ordinary cables and separated by a "-". For example, ZA-YJV22.
Executive Standard: GB/T 19666 General Rules for Flame-Retardant and Fire-Resistant Wires, Cables, or Optical Cables
Related News
