| Three Core MV AL CABLE | ||
| Voltage: | 3.6kV-15kV | |
| Structure: | Conductor | Aluminum |
| Insulation | XLPE | |
| Armour | STA/SWA | |
| Jacket | PVC | |
The product is suitable for fixed laying in the distribution network or industrial installations with AC 50Hz and rated voltage 3.6/6kV,6/6/6kV,6/10kV,8.7/10kV, 8.7/15kV ,12/20kV,18/30kV,21/35kV 26/35kV.
Fixed in the underground power grid of urban building communities, the leading lines of power generation and substations (all), and the use of power supply and distribution. For example, it can be used in power distribution and other places within industrial and mining enterprises.
It has the characteristics of high normal operating temperature of conductor, simple structure, easy to use and not limited by laying drop.
GB/T 12706-2020 Rated voltage 1kV (Um=1.2kV) to 35kV (Um=40.5kV) extruded insulated power cables and accessories.
The rated voltage is 3.6/6kV, and the maximum voltage of the AC system should not exceed 7.2kV.
The rated voltage is 6/6kV, and the maximum voltage of the AC system should not exceed 7.2kV.
The rated voltage is 6/10kV, and the maximum voltage of the AC system should not exceed 12kV.
The rated voltage is 8.7/10kV, and the maximum voltage of the AC system should not exceed 12kV.
The rated voltage is 8.7/150kV, and the maximum voltage of the AC system should not exceed 17.5kV.
The rated voltage is 12/20kV, and the maximum voltage of the AC system should not exceed 24kV.
The rated voltage is 18/30kV, and the maximum voltage of the AC system should not exceed 36kV.
The rated voltage is 21/35kV, and the maximum voltage of the AC system should not exceed 40.5kV.
The rated voltage is 26/35kV, and the maximum voltage of the AC system should not exceed 40.5kV.
The maximum allowable long-term working temperature of the cable conductor is 90°C; when short-circuited, the maximum temperature of the cable conductor does not exceed 250°C, continuously The time does not exceed 5s.
Minimum working environment temperature -10℃.
The laying temperature of cables should not be lower than 0℃.
The minimum bending radius of single-core cable without armour is recommended to be 20D. The minimum bending radius of single-core cable with armour is recommended to be 15D. The minimum bending radius of three-core cable without armour is recommended to be 15D. The minimum bending radius of three-core cable with armour is recommended to be 12D.
Note: D is the outer diameter of the cable.
Color code
1 core: omitted
3 cores: red, yellow, green (add color ribbon)
The outer sheath of the cable is usually black, but other colors can also be used in accordance with the manufacturer or buyer's agreement to adapt to its use environment. The cable should have a continuous identification of the manufacturer's name, product model, rated voltage, and the manufacturer's name identification can be a repeated identification of the manufacturer or trademark. The distance between the end of a complete logo and the beginning of the next logo should not exceed 500mm on the outer sheath of the cable; it should not exceed 200mm on the cable insulation or tape; the printed logo should be scratch-resistant and not fall off, and the printing on the surface Content should be clear and legible.
Note: The mark on the surface of the sheath can also add other content according to the custom of the user or the manufacturer.
Cables weighing less than 80kg are allowed to be delivered in coils. If there is no agreement, the delivery length is allowed to be no less than 100 meters. Short sections of cables with a length of not less than 20 meters are allowed to be delivered, and their quantity does not exceed 10% of the total length of delivery, or cables of any length can be delivered according to mutual agreement.
The measurement error of delivery length is ±0.5%.
Cables in rolls or coils should be neatly wound and properly packaged. The cable tray should comply with the regulations of JB/T 8137-1999. The cable ends should be reliably sealed, and the cable ends extending out of the pan should be protected by a protective cover, with the extension length less than 300mm. The cable package should be attached with a label indicating: manufacturer name, model, specification, rated voltage, length, quality, manufacturing date, standard number or certification mark, correct rotation direction of the cable drum, etc.
Transportation is generally in the form of vehicles and ships, and the cable must be firmly fixed during transportation to avoid mutual collision or tipping over and causing damage to the cable or equipment. Cable tray is not allowed to lay flat. It is strictly forbidden to throw the cable tray with the cable from the height during transportation.
The finished cable should be stored in an environment where the temperature is between 0 and 40 ° C and the humidity is below 85%, so that it is not directly exposed to sunlight or rain, and it should be properly ventilated to keep the environment dry. Cables are stored and used in accordance with the above requirements and can generally be used for more than 25 years.
When ordering, the cable model, specification, length, delivery date, packing method and other necessary information should be correctly marked. For example:
YJLV
3×150
200m
iron wooden tray packing
last day valid
train transport, car transport, ship transport or air transport
buyer's warehouse or site or buyer's own delivery
The mode of transportation and place of delivery shall be specified by the buyer.
During installation, the ambient temperature should not be lower than 0°C. If the ambient temperature measured by the thermometer is lower than 0°C, the cable should be preheated before preparation for installation; the bending radius during the cable laying process should be strictly controlled to avoid causing internal mechanical damage to the cable.
| Rated Voltage | No.OF CORES | CORSS SECTIONAL AREA(MM2) | CONDUCTOR | CORE DIAMETER(MM) | CONDUCTOR SCREEN THICKNESS(MM) | INSULATION THICKNESS(MM) | NON-METAL SCREEN SIZE(MM) | METAL SCREEN SIZE(MM) | BELT(MM) | JACKET THICKNESS(MM) | OVERALL DIAMATER(MM) | WEIGHT(KG/KM) | DC RESISTANCE (OHM/KM) |
| 3.6/6KV | 3 | 25 | 7/2.18 | 6 | 0.8 | 2.5 | 0.7 | 30×0.10 | 60×0.20 | 2.1 | 35.6 | 1674.8 | 0.727 |
| 3 | 35 | 7/2.58 | 7 | 0.8 | 2.5 | 0.7 | 30×0.10 | 60×0.20 | 2.1 | 37.8 | 2030.8 | 0.524 | |
| 3 | 50 | 10/2.58 | 8.4 | 0.8 | 2.5 | 0.7 | 30×0.10 | 60×0.20 | 2.2 | 41 | 2549.10 | 0.387 | |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 2.5 | 0.7 | 30×0.10 | 60×0.20 | 2.4 | 44.8 | 3260.6 | 0.268 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 2.5 | 0.7 | 40×0.10 | 60×0.20 | 2.5 | 48.5 | 4141 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 2.5 | 0.7 | 40×0.10 | 60×0.20 | 2.6 | 51.7 | 4968.7 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 2.5 | 0.7 | 40×0.10 | 60×0.20 | 2.7 | 55.3 | 5955.5 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 2.5 | 0.7 | 40×0.10 | 60×0.20 | 2.8 | 59 | 7081.9 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 2.6 | 0.7 | 40×0.10 | 60×0.20 | 3 | 64.8 | 8892.8 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 2.8 | 0.7 | 40×0.10 | 60×0.20 | 3.2 | 70.5 | 10875.2 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 3 | 0.7 | 40×0.10 | 60×0.20 | 3.4 | 78.7 | 13928.6 | 0.047 | |
| 6/6KV | 3 | 25 | 7/2.18 | 6 | 0.8 | 3.4 | 0.7 | 30×0.10 | 60×0.20 | 2.2 | 39.7 | 1913.5 | 0.727 |
| 3 | 35 | 7/2.58 | 7 | 0.8 | 3.4 | 0.7 | 30×0.10 | 60×0.20 | 2.3 | 42 | 2299.2 | 0.524 | |
| 3 | 50 | 10/2.58 | 8.4 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.4 | 45.2 | 2837.2 | 0.387 | |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.5 | 48.9 | 3551.8 | 0.268 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.6 | 52.5 | 4451.6 | 0.19 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.7 | 55.8 | 5298.8 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.8 | 59.4 | 6306.2 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.9 | 63.1 | 7453.3 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 3.1 | 68.4 | 9253.6 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 73.3 | 11175.4 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 3.5 | 80.6 | 14160.5 | 0.047 | |
| 6/10KV | 3 | 25 | 7/2.18 | 6 | 0.8 | 3.4 | 0.7 | 30×0.10 | 60×0.20 | 2.2 | 39.7 | 1913.5 | 0.727 |
| 3 | 35 | 7/2.58 | 7 | 0.8 | 3.4 | 0.7 | 30×0.10 | 60×0.20 | 2.3 | 42 | 2299.2 | 0.524 | |
| 3 | 50 | 10/2.58 | 8.4 | 0.8 | 3.4 | 0.7 | 30×0.10 | 60×0.20 | 2.4 | 45.2 | 2837.2 | 0.387 | |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.5 | 48.9 | 3551.8 | 0.27 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.6 | 52.5 | 4451.6 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.7 | 55.8 | 5298.8 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.8 | 59.4 | 6306.2 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 2.9 | 63.1 | 7453.3 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 3.1 | 68.4 | 9253.6 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 73.3 | 11175.4 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 3.4 | 0.7 | 40×0.10 | 60×0.20 | 3.5 | 80.6 | 14160.5 | 0.047 | |
| 8.7/10KV | 3 | 25 | 7/2.18 | 6 | 0.8 | 4.5 | 0.7 | 30×0.10 | 60×0.20 | 2.4 | 44.8 | 2251.6 | 0.727 |
| 3 | 35 | 7/2.58 | 7 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.5 | 47.2 | 2655.9 | 0.524 | |
| 3 | 50 | 10/2.58 | 8.4 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.6 | 50.4 | 3217.3 | 0.387 | |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.7 | 54 | 3957.2 | 0.27 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.8 | 57.7 | 4884.7 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.9 | 60.9 | 5754.2 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3 | 64.5 | 6788 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.1 | 68.2 | 7961.6 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 73.5 | 9801.3 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.4 | 78.3 | 11725.3 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.7 | 85.8 | 14799.2 | 0.047 | |
| 8.7/15KV | 3 | 25 | 7/2.18 | 6 | 0.8 | 4.5 | 0.7 | 30×0.10 | 60×0.20 | 2.4 | 44.8 | 2251.6 | 0.727 |
| 3 | 35 | 7/2.58 | 7 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.5 | 47.2 | 2655.9 | 0.524 | |
| 3 | 50 | 10/2.58 | 8.4 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.6 | 50.4 | 3217.3 | 0.387 | |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.7 | 54 | 3957.2 | 0.27 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.8 | 57.7 | 4884.7 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 2.9 | 60.9 | 5754.2 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3 | 64.5 | 6788 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.1 | 68.2 | 7961.6 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 73.5 | 9801.3 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.4 | 78.3 | 11725.3 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 4.5 | 0.7 | 40×0.10 | 60×0.20 | 3.7 | 85.8 | 14799.2 | 0.047 | |
| 12/20KV | 3 | 35 | 7/2.58 | 7 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 2.6 | 51.7 | 2992.9 | 0.524 |
| 3 | 50 | 10/2.58 | 8.4 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 2.7 | 54.9 | 3574.5 | 0.387 | |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 2.8 | 58.5 | 4337.1 | 0.268 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 2.9 | 62.2 | 5287.4 | 0.19 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 3 | 65.4 | 6177 | 0.15 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 3.1 | 69.1 | 7235 | 0.12 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 72.9 | 8463 | 0.10 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 3.4 | 78.1 | 10304.9 | 0.08 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 3.6 | 83 | 12294.3 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 5.5 | 0.7 | 40×0.10 | 60×0.20 | 3.8 | 90.3 | 15377.9 | 0.047 | |
| 18/30KV | 3 | 50 | 10/2.58 | 8.4 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.1 | 66.5 | 4635.5 | 0.387 |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.2 | 70.1 | 5457.3 | 0.268 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 73.8 | 6467.1 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.4 | 77 | 7409.2 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.5 | 80.6 | 8525 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.6 | 84.3 | 9780.7 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.8 | 89.6 | 11742.3 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 3.9 | 94.3 | 13770.1 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 8 | 0.7 | 40×0.10 | 60×0.20 | 4.2 | 101.8 | 17015.2 | 0.047 | |
| 21/35KV | 3 | 50 | 10/2.58 | 8.4 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 3.3 | 72.5 | 5259.5 | 0.387 |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 3.4 | 76.1 | 6112 | 0.268 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 3.5 | 79.8 | 7152.4 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 3.6 | 83 | 8121.8 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 3.7 | 86.6 | 9268.2 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 3.8 | 90.3 | 10554.7 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 4 | 95.6 | 12561.9 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 4.1 | 100.3 | 14629.1 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 9.3 | 0.7 | 40×0.10 | 60×0.20 | 4.4 | 107.8 | 17938.4 | 0.047 | |
| 26/35KV | 3 | 50 | 10/2.58 | 8.4 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 3.5 | 78 | 5885 | 0.387 |
| 3 | 70 | 19/2.18 | 10 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 3.6 | 81.7 | 6767.6 | 0.268 | |
| 3 | 95 | 19/2.58 | 11.6 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 3.7 | 85.3 | 7835.1 | 0.193 | |
| 3 | 120 | 24/2.58 | 13 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 3.8 | 88.5 | 8829.7 | 0.153 | |
| 3 | 150 | 30/2.58 | 14.6 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 3.9 | 92.2 | 10006.5 | 0.124 | |
| 3 | 185 | 37/2.58 | 16.2 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 4 | 95.8 | 11319.8 | 0.0991 | |
| 3 | 240 | 48/2.58 | 18.5 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 4.2 | 101.2 | 13371.4 | 0.0754 | |
| 3 | 300 | 60/2.58 | 20.6 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 4.3 | 105.9 | 15475.3 | 0.0601 | |
| 3 | 400 | 61/2.94 | 23.8 | 0.8 | 10.5 | 0.7 | 40×0.10 | 60×0.20 | 4.6 | 113.4 | 18844.4 | 0.047 |
We are based in Henan, China, start from 2012,sell to Domestic Market(70.00%), Mid East(11.00%), South America(10.00%), Africa(3.00%), North America(2.00%), Southeast Asia(2.00%), Eastern Asia(00.00%), South Asia(00.00%). There are total about 101-200 people in our office.
Always a pre-production sample before mass production; Always final Inspection before shipment.
Wire, Cable
We have twenty years of experience in design and development
Accepted Delivery Terms: FOB,CFR,CIF,EXW；
Accepted Payment Currency: USD,EUR;
Accepted Payment Type: T/T,L/C,Money Gram,Western Union;
Language Spoken: English,Chinese,French
Most quotes are returned within 24 hours
The inspection of cables is categorized into factory inspection and type inspection.
Ex-factory inspection consists of two types: 100% inspection and sampling inspection.
The items covered in the 100% inspection include conductor resistance measurement, partial discharge test, and voltage test.
Sampling inspection is conducted after the completion and approval of the 100% inspection items.
The sampling inspection covers concentricity of insulator, conductor inspection, dimensional inspection, voltage test, and thermal extension test of XLPE insulation.
For type testing, sample cables are randomly selected from those qualified during factory inspections with a sample size of three.
Electrical type tests include bending test followed by partial discharge test, tan delta measurement, heating cycle test followed by partial discharge test, impulse voltage test followed by power frequency voltage test, and a 4-hour voltage test.
Non-electrical type tests encompass insulation thickness measurement; non-metal sheath thickness measurement; mechanical properties testing of insulation before and after aging; mechanical properties testing of non-metal sheath before and after aging; additional aging tests for finished cable segments; ST2 type PVC sheath weight loss testing; high temperature pressure testing of insulation and non-metal sheathing; low temperature performance testing of PVC sheath; cracking resistance testing (thermal shock)of PVC sheath; insulation water absorption testing; undelayed single cable testing;XLPE insulation shrinkage testing;insulation shield strippability testing;water permeation testing.
Product performance requirements and corresponding test methods comply with standard GB/T 12706.3-2008.
The purpose of the performance acceptance test is to check whether all the properties of the contract products meet the requirements.
The site of performance acceptance test shall be the demander's site.
The performance acceptance test shall be carried out within 6 months after the 168-hour full load trial operation of the product, and the specific test time shall be determined by both parties through negotiation.
Installation of measuring points, primary components and local instruments required for performance acceptance test shall be provided by the supplier and cooperated by the demander. The supplier shall also provide the technical cooperation and personnel cooperation required for the test.
Content of performance acceptance test
In accordance with supplier quality assurance and test requirements.
Criteria for performance acceptance test
In accordance with supplier's quality assurance and test requirements.
The performance acceptance test shall be conducted by the demander and participated by the supplier. The test program shall be provided by the demander and determined after discussion with the supplier. The specific test shall be completed by the testing department approved by both parties.
Confirmation of performance acceptance test results
The performance acceptance test report shall be prepared by the testing unit, and the conclusions of the report shall be accepted by both parties. If there is any disagreement between the two parties on the results of the test, the two parties shall settle it through negotiation. If no agreement can be reached, it shall be submitted to the superior departments of both parties for negotiation.
When a performance acceptance test is conducted, if a party fails to send personnel to participate in the test after receiving the test notice from the other party, it shall be deemed to have agreed to the acceptance test results.
Refer to the former Ministry of Power Industry, Ministry of Machinery Industry issued by the electricity Office (1995) No. 37 "Interim Provisions for the quality supervision of large power equipment", "General representative group working Regulations in large power equipment manufacturers".
Refer to DL/T 586-2008 Technical Guidelines for Equipment Supervision.
GB/T 50319-2013 "Construction engineering supervision Code", GB/T 19000-2016/ISO 9000:2015 "Quality management and quality assurance" standard.
The relevant commercial terms and technical agreements in the equipment purchase contract signed between the user and the manufacturer, including the documents, letters, correspondence and so on, which have legal effect.
The product equipment drawing confirmed by the user and the manufacturer and the modification notice issued by the design unit.
Technical documents and design drawings related to national standards, industry standards, enterprise standards (subject to the latest version). If the standards adopted by the technical documents and the design drawings are inconsistent with each other, the national standards, industry standards, and enterprise standards shall be adopted as the recurrence order.
When the design drawing is inconsistent with the reference standard, the requirements in the standard shall prevail in principle, except for the special requirements of the parts.
Document witness, site witness and stoppage for inspection, namely R point, W point, H point.
Each time after the completion of the supervision content, the supplier and the supervision representative will perform the signature procedure on the witness form. The supplier shall deliver one copy to the buyer's supervision representative.
Point R: The supplier only needs to provide inspection or test records or reports of the item, that is, document witness.
Point W: The inspection or test project attended by the representative of the buyer's supervision, that is, the on-site witness.
H point: When the supplier stops to wait for the inspection or test of the buyer's supervision representative, that is, the project is stopped for inspection.
Upon receipt of the witness notice, the Demander shall promptly send a representative to the site of the supplier's inspection or test to participate in on-site witness or stop work for inspection. If the representative of the Demander cannot attend on time, point W can be automatically converted to point R, but if point H is not agreed to be converted to point R by written notice of the Demander, the supplier will not transfer to the next process and agree with the Demander to change the witness time. If the buyer is still unable to participate on time after the change, the H point will be automatically converted to R point.
The supplier shall have the obligation to cooperate with the demander's supervision and provide relevant information in a timely manner without incurring any costs.
The Supplier shall provide the demander's supervision representative with the convenience of work and life.
The supplier shall inform the Buyer's representative of the equipment supervision project and time before witnessing the site or stopping work for inspection.
Demander's supervision representative has the right to check (borrow) the technical information related to the contract supervision equipment. If Demander considers it necessary to copy and file, the supplier shall provide convenience.
The supplier shall provide the inspection and test records and reports to the supervision representative of the demander after the witness.
