Overview
| brand | Da Zheng Electric Wire and Cable | model | JKLGYJ |
| Packaging/Specifications | packing | ||
| Minimum packaging quantity | Theoretical weight | 949.5kg/km | |
| tensile strength | 74200N | Insulation thickness | 3.4mm |
| Conductor structure | 12/3.2+7/3.2n/mm | Cable outer diameter | 15.2mm |
| DC resistance | 0.320 Ω/km | Outer diameter of conductor | 23.6mm |
| Carrying capacity | 276A | Sellable region | nationwide |
| Shipping method | Logistics or special vehicle delivery | purpose | Substation construction, large crossing lines |
| Supply method | Spot, ordering | quantity | one million |
| encapsulation | twenty-three thousand six hundred and twenty | Batch number | Iron wood shaft |
Product Details
Overhead insulated cableMainly used in urban and forest power grid renovation, this product has a simple structure, good use, and excellent mechanical and physical properties
And electrical performance. Excellent resistance to electrical traces, surface discharge, and atmospheric conditions. At the same time, when Overhead power line is used for long-distance power transmission in suburbs, the cable inductance is very high
Low, low line voltage drop, do not add voltage boosting measures, it has high economic benefits.
Usage requirements:
1. The temperature during cable laying should not be lower than -20o
2. High and long-term allowable working temperature of cable conductors: cross-linked polyethylene insulation 90oC; High density polyethylene insulation at 75oC.
3. High temperature of cable during short circuit (long duration not exceeding 5S): cross-linked polyethylene insulation 250oC; High density polyethylene insulation at 150oC.
4. The allowable bending radius of the cable should not be less than: 20 (cable outer diameter+conductor outer diameter) -5%, mm
1、 Principle of overhead insulated cables:
The series of products for overhead insulated cables are composed of tightly pressed copper, aluminum (aluminum alloy) conductors, inner shielding layer, weather resistant insulation material, and outer shielding layer, which have both strength and durability
The power transmission characteristics of the cable also have strong mechanical properties of Overhead power line. Compared with bare wires, this product has small laying spacing and reliability
high
Excellent atmospheric aging resistance and other characteristics.
2、 Application of overhead insulated cables:
The overhead insulated cable product is a new series of products for the transmission of electricity on overhead transmission lines, and is preferred for the construction and renovation of 10kV transmission lines in power grids.
It is a series of products for line maintenance. Soft copper core products are suitable for transformer down leads.