Cable joints role.

1、Cable joints are also known as cable heads. The joints at the two ends of the cable line are called terminations, and the joints in the middle are called intermediate joints, and the terminations and intermediate joints are collectively called cable heads. After the cable is laid, in order to make it a continuous line, each section of the line must be connected as a whole, these connections are called cable joints. Cable joints are used to lock and fix the incoming and outgoing lines, and play the role of waterproof, dustproof and anti-vibration.

2, the cable head is generally in place after the laying of the cable in the field to make, its main role: to make the line smooth, so that the cable remains sealed, and to ensure that the insulation level at the cable joints, so that it is safe and reliable operation. If it is poorly sealed, not only will oil leakage cause the oil-impregnated paper to dry up, but also moisture will invade the inside of the cable, so that the paper insulation performance decreases.

Failures easily caused by poor contact of cable joints.

1, cable joints are not properly handled, will lead to poor contact cable joints, causing accidents, especially on rainy days in the outdoor, field cable joints, in the use of electrical appliances, will be caused by poor contact instability of electrical appliances, presenting short-circuit conditions.

2, poor contact cable joints, in the case of outdoor rainy days, rain will penetrate the cable joints, causing electrical accidents.
Today, we will tell you a cable connector safety does not heat up the formal processing method: in the terminal block set crimping connected to the flexible wire before the first hanging tin processing.

The benefits of hanging tin cable joints are.

1, to ensure that the wire joints are connected reliably, to avoid loose joints heat, and unimaginable circuit security problems.

2, wire joints hanging tin, will make the wire resistance becomes smaller. Without the hanging tin treatment, the wire joints are prone to oxidation false connection, or even a fire, a fire.

Wire joints hanging tin processing is not mandatory, but it is best to hang tin processing at the wire joints! And the following cases, must be hung tin processing.

(1) If the line midway need to barge, at this time and can not stay junction box, in this case, it is necessary to hang tin processing, while the use of heat-shrinkable sleeves for closure, which can prevent the barge line oxidation.

(2) in the strong power construction specifications, more than 2.5 mm of soft copper cable joints required to hang tin processing, so as to prevent poor contact and heat caused by;.

(3) If the home is a large amount of lamps and lanterns, and all the lamps and lanterns are in a circuit, this time must do hanging tin processing, to prevent accidents.