CN104300489A - Cable clamp sleeve - Google Patents

Abstract

The invention relates to a cable clamp casing used for cable erection in a power system. The sleeve casing is fixed on the cable sheath and clamped with the cable clamp in a heat-shrinking manner. The upper half is hollow and the lower half is hollow. Cylindrical, the cable clamp is fixedly clamped in the lower half of the cable clamp sleeve. This technology is aimed at the phenomenon that the cable needs to be fixed on a firm support for the suspended cable. The heat-shrinkable insulating sleeve developed to prevent the cable clamp from damaging the cable and the cable clamp is not firmly fixed is called: "cable clamp sleeve Tube". This technology is mainly to solve the problem that when the clamp for fixing the cable is under long-term force, the cable clamp will cause unnecessary damage to the cable, and the fixation will not be firm, so that the cable head will be stressed and stressed for a long time, which will cause the cable to run safely. Hidden danger. The method has mature innovative technology, high reliability, low cost and wide application range, and is generally applicable to cables of various types and materials fixed by cable clips, and can be widely promoted.

Description

Cable Clamp Sleeve

technical field

The invention relates to a cable clamp sleeve used for cable erection in a power system.

Background technique

In recent years, with the rapid development of cable grids in the province, cable grids have basically replaced overhead lines in central urban areas. According to statistics in 2013, 38,632 10kV cables were used in the province, with a total length of 12,000.611 kilometers.

As cables become the main carrier and are widely used in urban power supply, maintaining long-term stable operation of power supply equipment has become one of the important issues to be solved. The terminal of the cable is generally suspended due to the influence of conditions. Long-term observation of the running cable shows that if the clip fixing the cable terminal head is on the same line as the cable, it is easy to loosen and slide after a long time, resulting in stress on the cable connection. The reliability of power supply leaves hidden dangers. If there is an angle between the cable head and the cable fixing clip, if the inclination is large, the long-term force on the outer edge of the cable clip will damage the cable, especially for outdoor cables. Cause line failure, resulting in power outages.

In order to prevent the above phenomena and solve such problems, our group has developed a new type of casing. The bushing is made of insulating material with good compression resistance and insulation performance. Before fixing the cable, heat the sleeve to the clamping position of the cable clamp and the cable by heating the sleeve, and then fix the cable with the cable clamp.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a cable clamp sleeve, the purpose of which is to solve the problem that the fixed position of the suspended electronic clamp is easy to loosen and slide down and damage the cable to cause line failure

The present invention is achieved by the following technical means:

Cable clamp sleeve, the sleeve sleeve is fixed on the cable sheath and the clamping position of the cable clamp by heat shrinkage. The upper half is hollow circular truncated, and the lower half is hollow cylindrical. Pipe the lower half.

The length of the lower half of the casing is longer than the height of the cable clamp.

The sleeve is made of polyvinyl chloride.

This technology is aimed at the phenomenon that the cable needs to be fixed on a firm support for the suspended cable. The heat-shrinkable insulating sleeve developed to prevent the cable clamp from damaging the cable and the cable clamp is not firmly fixed is called: "cable clamp sleeve Tube". This technology is mainly to solve the problem that when the clamp for fixing the cable is under long-term stress, the cable clamp will cause unnecessary damage to the cable, and the fixation will not be firm, so that the cable head will be stressed and stressed for a long time, which will cause the cable to run safely. Hidden danger. This method has mature innovative technology, high reliability, low cost, and wide application range. It is generally applicable to cables of various types and materials when they are fixed with cable clamps, and can be widely promoted.

Advantage of the present invention and beneficial effect are:

1. It reduces the force on the cable head caused by cable fixing, reduces potential safety hazards, and thus reduces operation and maintenance costs.

2. The cable damage caused by the fixing of the cable clamp is reduced, and the safety and reliability of power supply are improved.

3. The production is simple and the operation is labor-saving. Just measure the position and heat it with a blowtorch.

4. Wide range of applications, suitable for fixing various types of cables indoors and outdoors.

Description of drawings:

Fig. 1 is a structural diagram of the present invention;

Fig. 2 is a schematic diagram of the installation of the cable clamp sleeve of the present invention.

Detailed ways

Example 1:

The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

As shown in Figure 1-2, the cable clamp sleeve is fixed on the cable sheath and the clamping position of the cable clamp by heat shrinkage. The clamp is fixedly clamped in the lower half of the cable clamp bushing. The lower part of the sleeve is longer than the height of the cable clamp. The sleeve is made of polyvinyl chloride, due to the different structure of the upper and lower halves, the cable clamp can be positioned without slipping.

This product is a cable heat-shrinkable sleeve, which is used when the cable needs to be fixed in the frame. It is used to solve the situation that the cable is not fixed firmly or the cable clamp is loose or slipped due to the long running time of the cable; it is also used to solve the cable compression. The cable clamp will cause the cable to be stressed for a long time, causing the problem of cable damage.

Claims (3)

1. cable clamp sleeve pipe, it is characterized in that being enclosed within outside this sleeve pipe on cable sheath and fix in pyrocondensation mode with cable clip clamping position, the first half is hollow round table shape, and the latter half is hollow cylinder, and cable clip fixed clamp is in cable clamp sleeve pipe Lower Half.

2. cable clamp sleeve pipe according to claim 1, is characterized in that described sleeve pipe the latter half length is longer than cable clip height.

3. cable clamp sleeve pipe according to claim 1, is characterized in that described sleeve pipe is made up of polyvinyl chloride.