A lightning Insulator 10kV Overview
Lightning Insulator 10kV voltage level is the most common line level due to the insulating 10kV line generally low, lightning or unbearable direct lightning effect, not only leads Watch Ray and overhead flashover will initiate a trip, and Ray shock when the surrounding trees or buildings, due to the induced voltage too high will cause flashover, breakdown of the insulating layer, successive frequency arc burning here, the wire will be blown in a very short period of time.At present, China, in cities 10KV distribution lines using insulated wires as more and more overhead distribution lines, effectively solve the corridors and safety issues difficult to resolve bare wire, underground cable has low investment compared to building the advantages of fast, but it also brings some new technical problems, one of which is lightning insulated conductor breakage in operation, has become a lightning break security challenges facing the power system.In order to solve the problems of the conventional technology, new product research and development of mine become an inevitable trend.
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For example: FEG-12/5 high-voltage lightning needle Composite Insulator (sub-piercing and non-piercing, two) high drop-type lightning protection and the like, having a lightning protection.These new lightning protection products and reliable performance, easy installation and construction, low investment, big gains, providing a more economical for the electricity sector, safer and more effective way.
Insulator 10kV lightning suitable for distribution 6kV, 10kV insulated conductors, the piercing structure using the patented penetrate the wire insulation installation groove electrical connection line; unique fork arc closely linked to bolt the upper end fittings Insulator , and the other end to a discharge end, a discharge gap is formed and the ground electrode is mounted on the lower end fittings of insulator; and has an insulating housing surrounding the upper end of the fork arc discharge end of the addition of all exposed fitting portion insulator.
Insulator 10kV mine Under normal conditions, lightning discharge gap Insulator inactivity; only exceeds the predetermined lightning overvoltage occurs, a gap to cross the ground electrode arc breakdown, shorting path.Successive frequency arc ignites the arc fork online folder, the release of over-voltage energy, in order to protect the wire from burns.
Insulator 10kv use two mine
10kV lightning Insulator for aerial lines, the overhead insulated wire or bare wire connected Tension rod or rods corner fittings, so that the tension overhead wires and insulation, and functions in lightning.
Three 10kv lightning Insulator Works
Insulator 10kV mine is suspended wire distribution path, a low potential is at the right end Insulator, then forming an air gap between the high and low voltage electrodes Insulator left and right ends of the main channel for providing lightning flashover and arcing channel , which is lower than the operating voltage Insulator body, and must first Insulator body before flashover operation, so that the lightning drainage, and a wire protection Insulator.
When lightning Insulator 10kV overhead insulated power transmission and distribution, or by a direct lightning strike induced lightning, the air gap arc Insulator left and right end bars can be provided prior to the discharge operation Insulator flashover, a lightning flashover channel, the lightning flash set up the network path or arc arc root frequency of single-phase short-circuit current, only the upper high and low voltage arc electrode fixing rod provided, but will not flow to the string or wire Insulator body, thus avoiding the umbrella group Insulator burn, even blown phenomenon insulated wire.
Lightning Insulator 10kV line Insulator meet the technical standards under international standards, and the various performance metrics Insulator be enhanced, possible clogging of discharge, and then to divert lightning manner to be clogged in the case of live.Insulator and arc-proof fittings combined into one, can be hung on the tension transmission and distribution lines, it is relative to the level of tension poles can be installed and to be suspended on the vertical line tensioning bracket, of great economic and practical sex.This product arc rod to provide multiple frequency ablation of the arc, and reliable performance, can effectively prevent the occurrence of damage caused by lightning Insulator lightning conductor and the insulating break accident.
Insulator 10kV lightning wherein connecting tip ends of the mandrel with gold Insulator shape may be required transmission and distribution line connection, and changes its shape to facilitate Insulator on lines.
Insulator 10kv lightning four installation steps
1, to select the appropriate model according to actual needs and needle mounting lightning Insulator.
2, is mounted on the first tower lightning Insulator or cross arm, with the general method of mounting Insulator, the ground electrode is attached to the crossarm between the steel and the foot, should the ground electrode toward the load side conductors, i.e. the side facing away from the power supply.
3, the lid release pressure line, adjusting the tightness of the wire so that both sides of the uniform force, and then the puncture wire into the slot with teeth, (note: the puncture insulating grease is used to strengthen the teeth waterproof, do not rub off during installation), the cover cap pressure line, a bolt through the through holes and cover Insulator Crimping aluminum cap, screwed into the screw holes on the two unparalleled fork arc, arc note fork corresponding to the direction of the ground electrode in the same plane perpendicular to its nearest discharge distance L should be between 100 ~ 120mm.
4, the requested actuating torque wrench according to the table prior to installation, with a torque wrench divided evenly tighten the bolt until the slip torque wrench until the.At this time, the teeth should puncture depth insulating layer and the outer layer should be close to the line conductor groove.
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