One, cable glands use:
Cable glands are also known as cable head. After the cable is laid, in order to make it a continuous line, the sections of the line must be connected as a whole, these connections are called cable joints. The cable joints in the middle part of the cable line are called intermediate joints, while the cable joints at the two ends of the line are called terminal heads. Cable glands are used to lock and fix the inlet and outlet lines, and play a role in waterproofing, dustproofing and vibration-proofing.
Two, the role of cable joints:
The main role of the cable joints is to make the line smooth, so that the cable to keep the seal, and to ensure that the insulation level of the cable joints, so that it can run safely and reliably. If the seal is poor, not only will the oil leakage caused by the oil-impregnated paper dry, but also moisture will invade the cable inside, so that the paper insulation performance decline.
Three, the classification of cable joints:
According to the installation place can be divided into indoor and outdoor type two kinds.
According to the production and installation materials can be divided into heat-shrinkable (one of the most commonly used), dry pack, epoxy resin casting type and cold shrinkage.
According to the core material can be divided into copper-core power cable head and aluminum-core power cable head.
According to the joint material is divided into plastic cable glands and metal cable glands. Metal cable glands can be divided into porous metal cable glands, anti-bending metal cable glands, double locking metal cable glands, plastic hose cable glands, metal hose cable glands and so on.