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Improved coaxial cable connector hot-line mounting technology

A technology of coaxial cable and installation process, applied in the direction of connecting/terminating cable equipment, etc., can solve problems such as loss, achieve the effect of speeding up the construction process, increasing work efficiency, and reducing resource input

Active Publication Date: 2013-10-09
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At home and abroad, when conditions permit, power outage treatment measures are generally taken. In this way, relevant power-consuming units have to be out of power for maintenance, which will cause huge losses. Live work is a new engineering technology, which requires the protection of the sheath induction cable. current limit

Method used

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  • Improved coaxial cable connector hot-line mounting technology
  • Improved coaxial cable connector hot-line mounting technology
  • Improved coaxial cable connector hot-line mounting technology

Examples

Experimental program
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Effect test

Embodiment

[0027] An improved coaxial cable joint live installation process, the process includes the following steps:

[0028] (1) Reduce the induced voltage of the sheath: such as figure 1 As shown, 1 is a high-voltage and extra-high-voltage power cable, and the grounding form of the cable sheath is selected according to the actual line situation. 2 is the inner core of the coaxial cable, and 3 is the outer core of the coaxial cable. Through the vacuum circuit breaker 4, the inner core 2 of the coaxial cable and the outer core 3 of the coaxial cable are sequentially grounded to reduce the induced voltage of the sheath.

[0029] (2) Live construction protection: After step 1, use the puncture grounding device 5 to ground the inner core 2 of the coaxial cable to keep the inner core 2 of the coaxial cable equal to the ground during construction to protect the safety of construction personnel.

[0030] Piercing grounding equipment 5 such as image 3 shown. Rotate the knob 8 to adjust t...

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Abstract

The invention relates to an improved coaxial cable connector hot-line mounting technology. The technology comprises the following steps of (1) protective layer inductive voltage reduction, (2) hot-line construction protection and (3) coaxial cable connector technology implementation, wherein the step (1) comprises the sub-steps that by the adoption of a vacuum breaker, a cable protective layer is grounded and the potential of the cable protective layer is reduced, the step (2) comprises the sub-steps that by the adoption of a piercing tool, a coaxial cable insulating layer is pierced at the upper end of a coaxial cable to be constructed, and a coaxial cable core is grounded, and the step (3) comprises the sub-step that a special construction technology of a coaxial cable connector is adopted to conduct construction. Compared with the prior art, the improved coaxial cable connector hot-line mounting technology has the advantages of being simple, capable of reducing cost and the like.

Description

technical field [0001] The invention relates to a coaxial cable joint installation process, in particular to an improved coaxial cable joint live installation process. Background technique [0002] In order to serve the transformation of urban construction from quantity to quality, the urban distribution network is gradually transforming from overhead lines to underground cables. In suburban areas, although overhead lines are still used in the mainstream distribution network, crossing cables are also required when some roads and ravines form obstacles. my country is still in the process of urbanization. With the continuous expansion of cities, the proportion of underground cables in the distribution network is increasing. [0003] As the cable conversion rate is getting higher and higher, more and more cables are used for EHV power transmission, and EHV cables use single-core cables, which requires transposition of the sheath to reduce the stress on the sheath. To induce c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/14
Inventor 李海孙剑飞
Owner STATE GRID CORP OF CHINA
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