Insulating soft ladder used for electric power cable overhaul

A technology for power cables and flexible ladders, applied in the field of power cable maintenance, can solve problems such as inconvenience in use, and achieve the effects of increasing service life, good insulation performance, and increasing adsorption force.

Inactive Publication Date: 2018-05-04
国网河南省电力公司超高压公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this device can only perform braking operation after maintenance personnel need to board the ladder, which is inconvenient to use

Method used

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  • Insulating soft ladder used for electric power cable overhaul
  • Insulating soft ladder used for electric power cable overhaul
  • Insulating soft ladder used for electric power cable overhaul

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An insulating soft ladder for power cable maintenance, such as Figure 1-3 As shown, it includes two cables 1 and a plurality of pedals 2 fixed between the cables 1 . Wherein the tops of two cables 1 fix two hanging heads 3 respectively, and the hanging heads 3 include an inverted U-shaped hook 21 and a pulley 4 fixed in the inverted U-shaped hook 21 , wherein one of the hanging heads 3 sides fixes a braking device 5, Wherein hanging head 3 and braking device 5 bottoms are all provided with threaded holes, and the fixing plate of bolt is set and hanging head 3 and braking device 5 are fixed together, and pulley 4 can slide on cable 23.

[0034] The brake device 5 comprises an inverted U-shaped hook 2 6 and a fixed block 7 fixed on the rear end of the inverted U-shaped hook 2 6, wherein the inverted U-shaped hook 2 6 and the fixed block 7 are fixed by welding, and the inverted U-shaped hook 2 6 is internally arranged Vertical pressing plate 8, vertical pressing plate 8 ...

Embodiment 2

[0045] The structure of the insulating ladder for power cable maintenance in embodiment 2 is the same as that of embodiment 1, the difference is that: in the present invention, the surface of the hanger 3 and the braking device 5 are all sprayed with insulating wear-resistant paint, wherein the insulating wear-resistant paint consists of the following weight The number of parts made of raw materials: 32 parts of acrylic emulsion, 28 parts of epoxy resin, 9 parts of silica sol, 11 parts of oxalic acid polyester, 6 parts of silicon nitride, 7 parts of nano-silica, 13 parts of nitrile rubber powder , 2.5 parts of glass fiber, 3 parts of polyethylene glycol octylphenyl ether, 7 parts of sodium lignosulfonate, 18 parts of solvent and 7 parts of water.

[0046] The solvent is a mixture of ethanol and toluene at a volume ratio of 1:2.

[0047] The insulating wear-resistant coating is prepared by the following steps:

[0048] (1) Mix and disperse oxalic acid polyester, silicon nitrid...

Embodiment 3

[0052] The structure of the insulating ladder for power cable maintenance in Example 3 is the same as in Example 1. In the present invention, the surface of the hanger 3 and the brake device 5 are all sprayed with insulating and wear-resistant coatings, wherein the insulating and wear-resistant coatings are made of the following raw materials in parts by weight Ingredients: 35 parts of acrylic emulsion, 25 parts of epoxy resin, 10 parts of silica sol, 12 parts of oxalic acid polyester, 7 parts of silicon nitride, 6 parts of nano silicon dioxide, 14 parts of nitrile rubber powder, 2 parts of glass fiber , 4 parts of polyethylene glycol octyl phenyl ether, 6 parts of sodium lignosulfonate, 17 parts of solvent and 8 parts of water.

[0053] The solvent is a mixture of ethanol and toluene at a volume ratio of 1:2.

[0054] The insulating wear-resistant coating is prepared by the following steps:

[0055] (1) Mix and disperse oxalic acid polyester, silicon nitride, nano-silica, gl...

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Abstract

The invention discloses an insulating soft ladder used for electric power cable overhaul, and belongs to the technical field of electric power cable overhaul. The insulating soft ladder comprises twocable ropes and a plurality of pedals fixed between the cable ropes; two hanging heads are fixed at the top ends of the two cable ropes respectively; each hanging head comprises an inverted U-shaped hook and a pulley arranged in the inverted U-shaped hook; and a brake apparatus is arranged beside the hanging head. The brake apparatus is arranged on the insulating soft ladder, and the brake apparatus can be operated by an overhaul staff by adopting a pulling rope; and the insulating soft ladder is simple in structure, safe and practical, and long in service life.

Description

technical field [0001] The invention relates to the technical field of power cable maintenance, in particular to an insulating soft ladder for power cable maintenance. Background technique [0002] Insulated soft ladders are often used during the maintenance of power cables. The soft ladders of this kind of insulating soft ladders are usually U-shaped hooks. There are pulleys inside the U-shaped hooks, which can be hung on the line or slide along the line. It is more convenient to use, but if the maintenance personnel need to stop on a certain line for operation, this soft ladder head is also easy to slide along the line by itself, which brings inconvenience to the normal operation of the operator. The prior art improves the structure of the insulating ladder. [0003] Chinese Patent Announcement No. CN201378704Y discloses a special hanging ladder for electric power maintenance, which is composed of a soft ladder and a hanging head. The hanging head is an insulated single-w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02C09D133/00C09D163/00C09D109/02C09D167/00C09D7/61C09D7/65C09D5/25
CPCH02G1/02C08K2201/011C08K2201/014C08L2205/035C09D5/00C09D133/00C09D163/00C08L63/00C08L67/00C08L9/02C08L71/02C08L97/005C08K13/04C08K7/14C08K3/36C08K3/34C08L33/00
Inventor 张利张嘉涛王来军张华申晓春
Owner 国网河南省电力公司超高压公司
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