CN211981453U

CN211981453U - Cable trench

Info

Publication number: CN211981453U
Application number: CN202020699630.3U
Authority: CN
Inventors: 范凯; 赵云龙; 崔瓅心; 张春玲; 李亮; 孙键庚; 陈兴涛; 李莹莹; 李春扬; 徐一绯; 马勇明; 崔宇
Original assignee: Dandong Electric Power Prospecting Design Institute
Current assignee: Liaoning Zhengxin Electric Power Design Co.,Ltd.
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-20
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a cable pit, cable pit are reinforced concrete cable pit, including basic bottom, ditch wall and plate roof, be equipped with the mount on the both sides ditch wall of cable pit respectively, are equipped with cable contactor on every mount, cable contactor is equipped with six interfaces, six interfaces divide into two sets ofly, set up the both sides at the mount respectively, the below of mount is equipped with a plurality of cable support in proper order on the lateral wall, cable pit bottom from the top down is equipped with ground basic unit, infiltration layer in proper order. Use the utility model provides a cable pit when the maintainer can get into the tunnel and overhaul, can make the staff maintain the circuit fast through the structure of cable contactor and mount, and loaded down with trivial details mixed cable conductor can be regular arranging in this cable pit.

Description

Cable trench

Technical Field

The utility model belongs to the technical field of the cable installation is arranged, a cable pit is related to.

Background

In the manufacturing and installation process of the 10kV cable, the used contactor is generally made of cold-shrink silicon rubber or polyethylene heat-shrinkable materials, so that dendritic aging breakdown, creeping discharge caused by respiration effect, short circuit or grounding fault caused by power-heat aging of the materials and the like easily occur on the middle joint; moreover, the middle joint is limited by the production process, and has no positioning structure inside, so that accurate positioning is not easy to occur in the installation process, internal semi-conductors are easy to dislocate or stagger after installation in the processes of external force moving, cable respiration and thermo-electric effect, and installation and dragging of other peripheral equipment, so that the formed electric field is uneven, high potential discharge at semi-conductor fracture is broken down, and inter-phase or phase ground short circuit faults are caused; the manufactured cable is placed at the bottom of a well, is very long (about 1.8 meters), can occupy a cable channel, presses other cables passing through or is pressed, has a fault or needs to pass through and adjust other cables at the later stage, and has very large workload, even cannot be realized.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a cable pit.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a cable pit, cable pit are reinforced concrete cable pit, includes basic bottom, ditch wall and plate top, is equipped with the mount on the both sides wall of cable pit respectively, cable pit bottom from the top down is equipped with ground basic unit, infiltration layer in proper order, is equipped with cable contactor on every mount, cable contactor is equipped with six interfaces, six interfaces divide into two sets ofly, set up the both sides at the mount respectively, the below of mount is equipped with a plurality of cable support in proper order on the lateral wall.

Furthermore, pore canals are arranged on two side walls of the cable trench, angle steel or stainless steel edge strips are fixed through expansion screws in the pore canals, and the fixing frame and the cable support are connected with the fixed angle steel or stainless steel edge strips.

Further, the cable contactor body is of an integrated structure, and a copper bar is arranged in the middle of the integrated structure.

Furthermore, a drain hole is formed in the foundation layer, the foundation layer is a concrete layer, and the water seepage layer is a slag water seepage layer.

The utility model has the advantages that:

when the cable trench provided by the utility model is applied, when the maintainer can enter the tunnel to overhaul, the structure of the cable contactor and the fixing frame can enable the maintainer to quickly maintain the circuit, the complex and complicated cable conductor can be regularly arranged in the cable trench, the cable trench of the structure realizes that the wiring place is underground, the ground area is not occupied, and the effects of saving the land cost, being safe and reliable and not influencing pedestrians and vehicles on the road surface are achieved; the power utilization property right division of national power grid enterprises and power utilization enterprises can be realized, and convenience is brought to power utilization of enterprises in the society.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall cross-sectional structure of the present invention;

fig. 2 is a schematic overall top view structure of the present invention;

FIG. 3 is a schematic diagram of the state structure of the present invention;

fig. 4 is the utility model discloses a when two return circuits wiring, cable contactor split structure sketch map.

Detailed Description

The utility model provides a cable pit, the cable pit is reinforced concrete cable pit, including the basis bottom, ditch wall 1 and plate top 2, be equipped with mount 3 on the both sides wall of cable pit respectively, cable pit bottom from the top down is equipped with ground basic unit 4 in proper order, the infiltration layer 5, the fixed cable contactor 6 that is equipped with on every mount, cable contactor 6 is equipped with six interfaces 61, six interfaces 61 divide into two sets ofly, set up respectively in the both sides of mount 3, can be used for copper core cable and aluminium core cable butt joint, realize the butt joint of three-core cable of different cross-section sizes, as shown in fig. 1 and 2.

The cable trench is used for wiring, the cable contactor application field is underground, the ground area is not occupied, and the effects of saving land cost, being safe and reliable and not influencing pedestrians and vehicles on the road surface are achieved. The cable contactor that sets up in the cable pit, six interfaces divide into two sets ofly, set up respectively in the both sides of mount, compare in the outdoor cable distribution box who is used for the butt joint to use among the prior art, can more clear differentiation cable's attribution property right, this cable contactor plays the purpose of property right demarcation promptly. The cable trench can also replace temporary emergency repair of intersections and road sections which can not be used for placing switching equipment such as a ring main unit in the prior art.

Further, a plurality of cable supports 7 are sequentially arranged below the side wall upper fixing frame 3, so that cables to be connected in the cable trench are regularly arranged.

Further, the cable contactor body is of an integrated structure, and a copper bar 8 is arranged in the middle of the integrated structure. Be connected contactor and mount through copper bar 8 to realize the ground connection, the cable contactor body adopts insulating material one-time casting molding can not disassemble, needn't maintain, does not exist into water probably, can realize not relying on external seal, only needs the structural seal of itself, realizes waterproof reliable performance.

Further, a drain hole 51 is formed in the foundation layer 4, the foundation layer 4 is a concrete layer, and the water seepage layer is a slag water seepage layer. The structure can realize smooth water channel passage and avoid water accumulation in the cable trench.

After the cable contactor is installed, the grounding is connected with the grounding of the cable, and the main grounding network of the cable is grounded without specially manufacturing the grounding network.

Extend to the cable of treating the wiring in this cable pit from the cable pit, through the utility model discloses the cable contactor who sets up treats the cable junction of wiring with another section, as shown in fig. 3 and 4, use the utility model provides a when the cable pit is laid wire, the cable contactor's of use is very little as far as possible, and the installation is compact, and the mode of putting is nimble, need not to make the cable shaft specially, and a standard configuration equipment, general cable shaft (minimum 1.5 cubic meter) can satisfy the installation environment requirement.

The interface of the cable contactor and the interfaces of the devices produced by other manufacturers adopt European 630A standard interfaces of domestic unified standards, for example, the interfaces can be unified with main devices such as ring main units.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims

1. The utility model provides a cable pit, its characterized in that, cable pit are reinforced concrete cable pit, including basic bottom, ditch wall and plate top, are equipped with the mount on the both sides wall of cable pit respectively, are equipped with cable contactor on every mount, cable contactor is equipped with six interfaces, six interfaces divide into two sets ofly, set up the both sides at the mount respectively, the below of mount is equipped with a plurality of cable support in proper order on the lateral wall, cable pit bottom from the top down is equipped with ground basic unit, infiltration layer in proper order.

2. The cable trench according to claim 1, wherein the two side walls of the cable trench are provided with a hole, an angle steel or a stainless steel edge strip is fixed by an expansion screw in the hole, and the fixing frame and the cable holder are connected with the angle steel or the stainless steel edge strip.

3. The cable trench of claim 1, wherein the cable contactor is of an integrated structure, a copper bar is arranged in the middle of the cable contactor, and the cable contactor is connected with the fixing frame through the copper bar.

4. The cable trench according to claim 1, wherein the foundation layer is provided with a drain hole, the foundation layer is a concrete layer, and the water seepage layer is a slag water seepage layer.