CN204681043U

CN204681043U - A kind of cable pipeline being convenient to examination and detection failure

Info

Publication number: CN204681043U
Application number: CN201520385231.9U
Authority: CN
Inventors: 徐海波
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-03
Filing date: 2015-06-03
Publication date: 2015-09-30
Anticipated expiration: 2025-06-03

Abstract

The utility model discloses a kind of cable pipeline being convenient to examination and detection failure, comprise pipeline body, textile sub tube and detection wire, 1 hole or porous textile sub tube is provided with in described pipeline body, pipeline body is separated into multiple compartment by textile sub tube, the transverse edge of textile sub tube is placed with detection wire, detect wire and adopt copper conductor or aluminum conductor or other metal wire, the quantity detecting wire is set to 1 core, 2 cores or multicore; The utility model sets up monitoring wire by the transverse edge of the textile sub tube installed in pipeline body, and whether qualifiedly can detect textile sub tube installation in time, constructability is checked and accepted; Energy rapid identification cable pipeline fault, is convenient to safeguard and changes, save maintenance cost.

Description

A kind of cable pipeline being convenient to examination and detection failure

Technical field

The utility model relates to a kind of cable pipeline, specifically the cable pipeline of a kind of constructability examination and detection failure.

Background technology

Cable wiring mainly comprises built on stilts mode and pipe method, along with the development in city, mainly adopts pipe method to lay in city, in order to save conduit resource, as a kind of textile sub tube widespread adoption pipeline body being separated into multiple compartment; Adopt textile sub tube mode to carry out cable wiring and there is following problem: the first, as a procedure, cannot really whether lay qualified by stator tube, in practice of construction, could confirm when only carrying out laying cable; The second, in use, due to the reason such as loss, vibration limits of mechanical damage, chemical corrosion, land subsidence, cable insulation thing, cause cable fault, when need change, textile sub tube whether fault cannot be determined, cable can not be changed in time.

Utility model content

The purpose of this utility model is the cable pipeline providing the examination of a kind of constructability and detection failure, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

The cable pipeline of a kind of constructability examination and detection failure, comprise pipeline body, textile sub tube and detection wire, be provided with multiple textile sub tube in described pipeline body, be provided with detection wire in textile sub tube, the quantity detecting wire is set to 1 core, 2 cores or multicore.

As further program of the utility model: described detection wire adopts copper conductor or aluminum conductor or other metal wire.

Compared with prior art, the beneficial effects of the utility model are: the utility model can be applied to textile sub tube delivery receiving acceptance, after textile sub tube construction, cable tester is used to be connected with detection wire, son can be tested quickly and easily and manage whether installation qualification, if installation qualification, tester display waveform is normal, measures mounting distance simultaneously; As fruit pipe has fracture, test display waveform is fracture, shows fracture distance simultaneously, ensures acceptance quality; Can provide foundation for Breakdown Maintenance, when cable breaks down, use cable tester to connect copper conductor, whether test pipe has fault, if there is fault, changes son pipe, if test is normal, only need changes cable, reduce maintenance cost.

Accompanying drawing explanation

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

Fig. 2 is the schematic diagram that Low Voltage Impulse Method detects the utility model fault.

Fig. 3 is the schematic diagram that HVDC flashover m ethod detects the utility model fault.

Wherein, 1-textile sub tube; 2-detects wire; 3-pipeline body; 4-flash tester.

Embodiment

Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.

Refer to Fig. 1, a kind of cable pipeline being convenient to examination and detection failure, comprise pipeline body 3, textile sub tube 1 and detect wire 2, multiple textile sub tube 1 is provided with in described pipeline body 3, be provided with in textile sub tube 1 and detect wire 2, detect the quantity of wire 2 and be set to 1 core, 2 cores or multicore, described detection wire 2 adopts copper conductor or aluminum conductor or other metal wire.

Described detection wire 2 is placed in the transverse edge that 1 hole or porous textile sub tube 1 be stitched together, and detecting wire 2 is when not affecting textile sub tube 1 and installing cable, places according to the suture way of textile sub tube 1; Detect wire 2 to detect for the fault of textile sub tube and effective length; Described pipeline body 3 and textile sub tube 1 can judge effective length and failure condition by carrying out detection to the detection wire 2 built-in at textile sub tube 1.

Operation principle of the present utility model is: refer to Fig. 2, action of low-voltage pulse is used for the speed of radio wave propagation in test cable, cable total length, low resistance faults (fault phase resistance value is lower than 1K) and open fault and short trouble, cable tester is connected with detection wire 2, Low Voltage Impulse Method can be adopted to carry out the range finding of fault, can intuitively from the display screen of cable tester observe be out of order be a little open a way or the fault of short circuit character, and directly can calculate the distance of fault point apart from test point, its operation principle is: according to the character of the test waveform failure judgement of cable, when transmitted pulse and the same phase time of reflected impulse, expression is open circuit fault or terminals open circuit, when transmitted pulse and reflected impulse anti-phase time, then short circuit grounding or low resistance faults.

Refer to Fig. 3, the high resistive fault (D.C. resistance of fault point is greater than the fault of the characteristic impedance of this cable) of power cable almost accounts for more than 90% of whole failure rate, rush sudden strain of a muscle mode for testing high resistant leaks fault and high resistant flashover fault, its operation principle is: apply an impulse high voltage at the top of failure cable, by fault point arc through, utilize fault point puncture moment voltage or electric current wear jump as test signal, observe the time of this signal round trip between fault point and cable head-end; Or fault point punctures and is coupled into low voltage pulse signal instantaneously and finds range, HVDC flashover m ethod is applicable to flashover fault, namely fault point does not form resistance via or resistance value is high, but when voltage is elevated to certain value, (normally several ten thousand volts) will produce flashover.

Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.

Claims

1. the cable pipeline of a constructability examination and detection failure, it is characterized in that: comprise pipeline body (3), textile sub tube (1) and detect wire (2), described pipeline body (3) is built-in with 1 hole or porous textile sub tube (1), have detection wire (2) in the transverse edge of textile sub tube (1), the quantity detecting wire (2) is set to 1 core, 2 cores or multicore.

2. constructability according to claim 1 is checked and accepted and the cable pipeline of detection failure, it is characterized in that, described detection wire (2) employing copper conductor or aluminum conductor or other metal wire.