CN205899110U - OPGW optical cable gold utensil mounting bracket - Google Patents

Abstract

The utility model relates to the technical field of electric power equipment, in particular to an OPGW optical cable hardware installation frame, which includes an upper installation hanger, a lower installation hanger, a vertical support frame and a remaining cable tray, and the front center of the remaining cable tray passes through the remaining cable tray The mounting bolts of the rack are fixedly connected with a connecting plate, the front of the connecting plate is connected with a nameplate, and the position near the top corner of the remaining cable tray is threaded with an optical cable locking bolt. In the utility model, the remaining cable reel frame on the OPGW optical cable fittings mounting frame adopts non-metallic insulating material, and the remaining cable reel frame and the fittings mounting frame are completely insulated, effectively controlling the problem of OPGW optical cable inter-turn discharge and broken strands. The material strength of the cable tray is good, and the outdoor service life is more than 30 years, which provides a reliable guarantee for the safe operation of the high-voltage substation, and the annual grounding resistance of the substation is convenient.

Description

An OPGW optical cable fittings mounting frame

technical field

The utility model relates to the technical field of electric power equipment, in particular to an OPGW optical cable hardware installation frame.

Background technique

At present, after the OPGW optical cable enters the substation, it is led down from the top of the gantry frame. "Q/GDW 758-2012 Installation Process Specifications for Communication Optical Cables in Power Systems" uses rubber clamps to keep the OPGW optical cable and the gantry frame insulated and fixed throughout. When the OPGW optical cable reaches a height of 2.5 meters from the ground, set up a set of metal residual cable trays, which are used for inventorying redundant OPGW optical cables, fixing OPGW splice boxes, redundant ADSS optical cable inventory, metal residual cable trays and gantry The rubber pads are used to insulate the frames, which solves the problem of insulation and grounding of the remaining cable coils in a short period of time. However, rubber clips and rubber pads used in high-voltage substations will accelerate rubber oxidation, and the insulation between the metal residual cable coils and the gantry frame is not good. Reliable, easy to cause strand breakage due to inter-turn discharge of OPGW optical cable. When the grounding resistance in the substation is inspected annually, the metal residual cable frame is in direct contact with the pole tower, resulting in inaccurate detection data.

Utility model content

The technical problem to be solved by the utility model is: in order to solve the problems existing in the above-mentioned background technology, an improved OPGW optical cable fittings installation frame is provided to solve the problem that rubber clips and rubber pads used in high-voltage substations will accelerate rubber oxidation and metal residual cable reels The insulation between the frame and the gantry frame is unreliable, and it is easy to cause the inter-turn discharge of the OPGW optical cable to break the strands. When the grounding resistance in the substation is inspected annually, the metal residual cable frame is in direct contact with the pole tower, resulting in inaccurate detection data.

The technical solution adopted by the utility model to solve the technical problem is: an OPGW optical cable hardware installation frame, including an upper installation hanger, a lower installation hanger, a vertical support frame and a remaining cable tray, and the front of the remaining cable tray is The central position is fixedly connected with a connecting plate through the mounting bolts of the remaining cable reel frame. The front of the connecting plate is connected with a nameplate. The back of the rack is provided with a full-thread U-shaped hoop, the top of the full-thread U-shaped hoop is fixedly connected to the back of the remaining cable rack through the hoop lock nut, and the back of the upper installation hanger and the lower installation hanger The contact iron is fixed by welding.

Preferably, in order to improve the structural strength, the remaining cable reel frame is a 90° cross disk, the middle of the remaining cable reel frame is spliced with a connecting plate, and the front and back of the remaining cable reel frame are respectively equipped with 4 countersunk heads of M12*45 Screw installation is tight.

Preferably, in order to maintain a safe distance, the upper installation hanger and the lower installation hanger are installed at a position about 2.5 meters above the ground of the gantry pole.

Preferably, in order to reduce the cost, the size of the upper installation hanger and the lower installation hanger is the same.

Preferably, in order to improve safety, the remaining cable reel is made of non-metallic insulating material.

Preferably, in order to enhance stability, the upper mounting bracket and the lower mounting bracket are parallel to each other.

The beneficial effect of the utility model is that the remaining cable reel on the OPGW optical cable fittings mounting frame of the utility model adopts non-metallic insulating material, and the remaining cable reel is completely insulated from the fittings mounting frame, effectively controlling the OPGW optical cable turns. The problem of broken strands due to intermittent discharge, the material strength of the remaining cable tray is good, and the service life outdoors is more than 30 years, which provides a reliable guarantee for the safe operation of the high-voltage substation, and the annual grounding resistance of the substation is convenient.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a top view of the utility model.

In the figure: 1. Upper installation hanger, 2. Lower installation hanger, 3. Vertical support frame, 4. Residual cable reel holder, 5. Remaining cable reel holder installation bolts, 6. Connecting plate, 7. Nameplate, 8. Optical cable locking bolt, 9. full tooth U-shaped hoop, 10. hoop lock nut, 11. pole installation contact iron.

detailed description

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

A kind of OPGW optical cable fittings installation frame shown in Fig. 1 and Fig. 2, comprises upper installation hanger 1, lower installation hanger 2, vertical support frame 3 and remaining cable reel frame 4, and the front center position of remaining cable reel frame 4 passes through remaining The cable reel frame mounting bolt 5 is fixedly connected with a connection plate 6, the front of the connection plate 6 is connected with a nameplate 7, the remaining cable reel frame 4 is threaded with an optical cable locking bolt 8 near the top angle, and the remaining cable reel frame 4 back is provided with a full The tooth U-shaped hoop 9, the top of the full-tooth U-shaped hoop 9 is fixedly connected to the back of the remaining cable tray 4 through the hoop lock nut 10, and the back of the upper installation hanger 1 and the lower installation hanger 2 are welded and fixed with a pole for installation Contact Iron 11.

Preferably, in order to improve the structural strength, the remaining cable reel 4 is a 90° cross disk, the middle of the remaining cable reel 4 is spliced with a connecting plate, and the front and back of the remaining cable reel 4 are respectively equipped with 4 countersunk heads of M12*45 Screws are installed and fastened. Preferably, in order to keep a safe distance, the upper installation hanger 1 and the lower installation hanger 2 are installed on the gantry pole about 2.5 meters above the ground. Preferably, in order to reduce costs, the upper installation hanger 1 and the lower installation hanger The installation hangers 2 have the same size. Preferably, in order to improve safety, the remaining cable tray 4 adopts a non-metallic insulating material. Preferably, in order to improve stability, the upper installation hanger 1 and the lower installation hanger 2 are parallel to each other. A utility model for the remaining cable reel 4 on the OPGW optical cable fittings mounting frame is made of non-metallic insulating material, and the remaining cable reel 4 is completely insulated from the fittings mounting frame, effectively controlling the problem of OPGW optical cable inter-turn discharge and broken strands. The material strength of the remaining cable tray 4 is good, and the outdoor service life is more than 30 years, which provides reliable guarantee for the safe operation of the high-voltage substation, and the annual grounding resistance of the substation is convenient.

1. The material of the remaining cable tray 4 is changed to phenolic epoxy resin + glass fiber, and epoxy resin boards are used for insulation between the installation fittings and the remaining cable tray 4, so as to ensure the effective insulation between the OPGW optical cable and the gantry frame, and eliminate the OPGW optical cable inter-turn discharge strand breakage problem.

2. The remaining cable reel 4 adopts a modular design, and the installation of the remaining cable support is quick and convenient. There is no need to add fixing nuts when installing with fittings. The OPGW optical cable is relatively flexible, so the remaining cable reel 4 must be designed with a locking bolt to lock the inventory For a good OPGW optical cable, because the remaining cable reel 4 is made of non-metallic insulating material, the locking bolt must also be made of non-metallic insulating material, which solves the problem of quick installation and transportation of OPGW terminal fittings.

Embodiment: The remaining cable tray 4, connecting plate 6, and optical cable locking bolt 8 are made of phenolic epoxy resin + glass fiber, and the advantages are as follows: 1.1 Insulation resistance: ≥ 1000MΩ/500V (DC); 1.2 Withstand voltage: ≥ 3500V ( DC)/1min, no breakdown, no flashover; 1.3 non-metallic material, non-magnetic, not affected by the induced electricity of high-voltage substation; 1.4 good mechanical strength, vertical tensile force greater than 3000 N, outdoor use for more than 30 years. Introduction to the structure of the OPGW optical cable fittings mounting frame in ultra-high voltage substations: the fittings mounting frame is formed by welding the upper mounting plate 1, the lower mounting plate 2 and 2 vertical support frames 3. In order to increase the friction between the fittings and the gantry frame, the fittings The installation is firm and reliable, and the installation position in the middle of the upper installation hanging plate 1 and the lower installation hanging plate 2 is added with welding and holding rods to install the contact iron 11; the remaining cable tray 4 is installed to the four corners of the fittings, forming a 90° cross plate, The middle is spliced with connecting plate 6, and the front and back are respectively installed and fastened with 4 M12*45 countersunk screws.

Overview of the application of OPGW terminal fittings in ultra-high-voltage substations in substations: First, install the OPGW optical cable fittings mounting frame of high-voltage substations at a position about 2.5 meters above the ground on the gantry pole, and remove the optical cable locking bolts from the remaining cable racks. The OPGW down-conductor cable reel is stored on the remaining cable rack for about 5-8 turns, and then the redundant ADSS optical cable reel is placed on the remaining cable rack for about 5-8 turns, and the optical cable locking bolt is locked.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (6)

1. a kind of opgw optical fiber cable fitting installing rack, including upper mounting hung rack (1), lower mounting hung rack (2), perpendicular bracing frame (3) and remaining Cable plate rail (4), is characterized in that: described remaining cable plate rail (4) front center position is fixing even by remaining cable plate rail installation bolt (5) It is connected to connecting plate (6), described connecting plate (6) is positively connected with nameplate (7), the upper nearly corner position of described remaining cable plate rail (4) It is threaded with optical cable clamping screw (8), described remaining cable plate rail (4) back side is provided with full tooth u-shaped anchor ear (9), and described is complete Tooth u-shaped anchor ear (9) top is fixedly connected with remaining cable plate rail (4) back side by anchor ear locking nut (10), and described upper installation is hung Frame (1) is welded with pole installation with lower mounting hung rack (2) back side and contacts ferrum (11).

2. a kind of opgw optical fiber cable fitting installing rack according to claim 1, is characterized in that: described remaining cable plate rail (4) is in 90 ° of decussation disk, using connecting plate splicing in the middle of remaining cable plate rail (4), remaining cable plate rail (4) front and back is respectively with 4 Fastening installed by the sunk screw of m12*45.

3. a kind of opgw optical fiber cable fitting installing rack according to claim 1, is characterized in that: described upper mounting hung rack (1) It is arranged on bar about 2.5 meters of high positions from the ground in gantry with lower mounting hung rack (2).

4. a kind of opgw optical fiber cable fitting installing rack according to claim 1, is characterized in that: described upper mounting hung rack (1) Identical with lower mounting hung rack (2) size.

5. a kind of opgw optical fiber cable fitting installing rack according to claim 1, is characterized in that: described remaining cable plate rail (4) is adopted With nonmetallic insulant.

6. a kind of opgw optical fiber cable fitting installing rack according to claim 1, is characterized in that: described upper mounting hung rack (1) It is parallel to each other with lower mounting hung rack (2).