CN203660357U - 10-kV load cut-off type current drainage tool - Google Patents

Abstract

The utility model discloses a 10kV load cut-off type drainage tool, which solves the problem that the existing load drainage tool has a small range of use and is inconvenient, and is characterized in that it includes a charged chuck, a transitional copper nose, a 10kV drop type fuse, and a jumper Cable, drop-out fuse insulation cover, the upper end of the 10KV drop-out fuse is connected to a live chuck through a transition copper nose, the lower end is connected to a jumper cable, and the other end of the jumper cable is also connected to a live chuck. The utility model enables all kinds of accidents or defects of the distribution network line to be repaired and eliminated without power failure, so that the live operation of the distribution network enters a real "non-power interruption operation"; it is simple and practical, has high safety, wide application range and low cost ; Eliminate hidden dangers of accidents in time and improve power supply reliability; it can be used as a temporary cut-off switch, and can temporarily provide fault and overcurrent protection for operating lines.

Description

10kV load cut-off drainage tool

technical field

The utility model relates to a load drainage tool for a distribution network line, in particular to a load drainage tool used in the non-stop operation of a 10kV line.

Background technique

For distribution network lines, when there are potential safety hazards in the zero-gram or knife switch of the trunk and branch line equipment, in order not to expand the scope of power outages, operators often adopt the method of live disconnection and connection of lead wires to replace the zero-gram and knife switch. For live work, it is often necessary to disconnect the zero gram or the knife switch and carry out the work without load. Although the scope of the power outage is reduced, part of the power is also lost, which affects the power supply reliability of the distribution network line.

Due to the needs of its development mechanism, modern society has higher and higher requirements for the continuity of power supply. Any short-term power outage may have a huge impact on users around the line. For some large industrial plants, a short power outage It may cause huge economic losses, and a long-term power outage will bring many thorny problems to its normal work. Government agencies, hospitals, banks and other infrastructure must ensure the reliability of their power consumption.

The load drainage tools sold on the market are heavy and expensive, and there are few power supply companies equipped with them. Moreover, the tool has a small range of use, which is inconvenient in practical applications. It is only suitable for bare wires, and the insulated wires need to be stripped to connect. . This will destroy the mechanical properties and insulation properties of the insulated wire, thereby posing certain safety hazards.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art and provide a 10kV load cut-off drainage tool, so that various accidents or defects of distribution network lines can be repaired and eliminated without power failure, which not only ensures the electricity consumption of enterprises and residents, It also improves the power supply reliability of the distribution network line.

The utility model is characterized in that it includes a charged chuck, a transition copper nose, a 10kV drop-out fuse, a jumper cable, and an insulation shield for the drop-out fuse, and the upper end of the 10KV drop-out fuse is connected to a charged The lower end is connected to the jumper cable, and the other end of the jumper cable is also connected to a live chuck.

The live chuck is made of all aluminum, can be directly hung on the line by using a high-voltage operating rod, or can be directly hung on the line by wearing insulated gloves and insulated suit hands, and is used in places that cannot be reached by insulated work vehicles; it is easy to use and low in cost. It is mainly used on exposed lines, and it can be used on insulated wires in conjunction with insulation piercing grounding rings.

The outer layer of the jumper cable is first wound with a 10kV insulating self-adhesive tape, and then a 10kV insulating heat shrinkable tube is used to enhance its insulation performance.

The jumper cable is a soft-core copper cable with a diameter of 50mm.

It can be seen from the above technical solution that the utility model has the following beneficial effects: 1. All kinds of accidents or defects of the distribution network line can be repaired and eliminated without power failure, so that the live operation of the distribution network enters the real "non-power interruption operation". It is conducive to reducing the number and time of power outages for users, and is conducive to achieving a win-win situation between power supply companies and users; 2. Simple and practical, high safety, wide application range, low cost, and can recover costs in a short period of time; 3. Eliminate accidents in a timely manner Hidden dangers, improve power supply reliability: due to shortening the running time of equipment in case of illness, reducing or even avoiding accidental power outages, increasing the annual power supply hours of equipment, and greatly improving the power supply reliability of the power grid; 4. It can be quickly, firmly and safely It is connected with the running line, which shortens the live working time, reduces the labor intensity, and improves the utilization rate of working hours; When it is inconvenient to carry out live work to eliminate defects, the utility model can be used as a temporary cut-off switch, and a fuse of a certain specification is installed in the safety tube, which can temporarily provide fault and overcurrent protection for the running line, so that the enterprise users of the line can create more output value, Resident users can improve the quality of life; 6. If it is matched with an insulating operating rod, it can be used as a temporary or emergency use for line loads; it has strong regional adaptability and is not restricted by traffic and complex terrain. 7. Combined with the existing zero-gram insulation shielding cover, the drainage tool can be fully insulated and shielded, and the safety protection is strong, effectively ensuring the safety of live workers; 8. The utility model is used in 10kV distribution network lines Carry out uninterrupted operation, calculated on the basis of 2 hours of live work each time, carry out 40 uninterrupted operations per year, the annual power supply can be increased by 144,000 kW.h, and the income of power supply enterprises can be increased by 72,000 yuan.

Description of drawings

Fig. 1 is a structural schematic view of the utility model used for insulated conductors of distribution network lines.

Fig. 2 is a schematic diagram of the structure of the utility model using the insulating shield of the drop-out fuse.

In the figure, 1. Insulation puncture hanging tool, 2. Live chuck, 3. Transition copper nose, 4.10kV drop-out fuse, 5. Jumper cable, 6. Drop-out fuse insulation shield.

Detailed ways

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

As shown in Figure 1, the utility model is used for insulated conductors of distribution network lines. First connect the insulation piercing suspension tool 1 to the main insulated wire, and then fix the live chuck 2 on the insulation piercing suspension tool 1, and connect the live chuck 2 to the upper end of the 10KV drop-out fuse 4 through the transition copper nose 3. Pull the fuse tube of the 10kV drop-out fuse 4, first disconnect the line load, connect the lower end of the 10kV drop-out fuse 4 to the jumper cable 5, and then connect the other end of the jumper cable 5 to a live chuck 2, and put The charged chuck 2 is fixed on the insulation piercing suspension tool 1 on the branch insulated wire, and then the melting tube of the 10kV drop-out fuse 4 is closed. As shown in Figure 2, the 10kV drop-out fuse 4 is completely insulated and shielded by using the drop-out fuse insulating shield 6, and then the zero-gram or knife switch can be replaced and eliminated.

If the utility model is used for bare conductors of distribution network lines: fix the live chuck 2 on the main bare conductors of the distribution network, pull the fuse tube of the 10kV drop-out fuse 4, first disconnect the line load, and then connect the 10kV drop-out fuse 4 The lower end of the fuse 4 is connected to the jumper cable 5, and then another live chuck 2 is fixed on the bare wire, and finally the melting tube of the 0kV drop-out fuse 4 is closed, and the insulating shield of the drop-out fuse is 6 Make the 10kV drop-out fuse 4 fully insulated and shielded, and then the zero-gram or knife switch can be replaced and eliminated.

Claims (1)

1. a 10kV load cutting type drainage instrument, it is characterized in that: comprise charged dop (2), transition copper lug (3), 10kV fuse switch (4), jumper cable (5), fuse switch insulating shield (6), described 10KV fuse switch (4) upper end connects a charged dop (2) by transition copper lug (3), lower end is connected with jumper cable (5), and the other end of jumper cable (5) also connects a charged dop 2 (2).

Images