Anti-thunder insulator strain clamp string
The invention belongs to the electric power equipment that the power transmission and distribution overhead transmission line is used.
A kind of power transmission and distribution overhead transmission line is used, have prevent lightning-caused breaking and insulator damage function, electrical verification grounding function, do not need when being used for insulated wire peeling the puncture conducting function, prevent that lead slippage strain insulator from gripping and hanging the anti-thunder insulator strain clamp string that pulls and supports the lead function.Its structure is novel rationally, simplifies strain insulator-string and lightning protection device, reduces the fault point, and collecting multi-functional is one, easy construction, and efficient energy-saving, attractive in appearance, the life-span is long, and the wire clamp type selecting has interchangeability, is a kind of renewal product of comprehensive lifting power circuit equipment.
The electric insulator strain clamp string is the important component part of power transmission and distribution overhead power line, it not only directly has influence on fail safe, the reliability of power circuit operation, and affect economy, the feature of environmental protection of electric line operation to a great extent, and the useful life of whole circuit, so how to design and develop, can be used for bare wire and can be used for energy-efficient, the environmental protection of insulation transmission and distribution circuit, the electric insulator strain clamp string of safety again, be urgency key subjects to be solved of China's power grid construction.Especially the lightning protection how? how easily can not peeling just be set up insulated wire reliably? electrical verification ground connection how easily? the more automatic lead that effectively grips how? on problem, all need to have a kind of product of innovation to replace and continued to use defective old product for many years.Known power transmission and distribution overhead transmission line, what used in the past all is plain conductor, distribution line is brought into use insulated conductor gradually after the nineties.Insulated conductor has solved the safety problems such as circuit corridor that plain conductor originally has, the known distribution line class of insulation is relatively low, in actual use because lightning-caused breaking, the insulator breakage, the situation that makes whole electric line produce operation troubles happens occasionally, especially because the global weather variation, the meteorology that lightning flashes and thunder rumbles is more frequent, therefore the electric network fault that causes has accounted for 36.8% of whole line fault, and wherein the lightning-caused breaking rate has accounted for 96.8%, influenced the normal power supply of gauze greatly, also very considerable to the loss that national economy causes.Japan just once studied at early seventies and reached a conclusion: if insulated conductor does not have appropriate lightning protection measures, be will inevitably break and the insulator breakage when running into thunderbolt so.Therefore must solve insulated conductor by lightning-caused breaking, the problem of insulator breakage could guarantee the safe operation of overhead insulating transmission and distribution network.Known method has the installation overhead ground wire, and zinc oxide arrester etc., but still exist great hidden danger.Recently, the existing method preferably of straight line pole place lightning protection, as lightning protection pillar insulator, but strain insulator bar, terminal pole, an extension bar etc. are located special-purpose strain clamp insulator string lightning protection and are not also had, therefore be badly in need of inventing a kind of effectively, conveniently be adapted to the anti-thunder insulator strain clamp string of various installation situations.
In addition, used equipment mostly was traditional old-fashioned electric power equipment when known power transmission and distribution overhead transmission line set up, not only stupid but also big, install complicated, purchase numerous and diverse, poor safety performance, and the wire clamp of clamping lead all is fixing at the cross-arm of electric pole by single insulator and connection gold utensil, both lacked the security performance of taking precautions against thunderbolt, again can not be lastingly clamping lead reliably, exist great hidden danger.Some energy-consuming products that fall behind all are extensive use of so far in China always, spread all over urban and urual areas of whole country's electrical networks at different levels.According to repeatedly experiment conclusion both domestic and external, old-fashioned electric armour clamp will consume a large amount of electric energy in that circuit is in service, the most frequently used NLD type of circuit series strain clamp only, every wire clamp average year energy consumption just reaches about 500KW.H, this a kind of electric armour clamp that is moving by the basic electrical network in the whole nation, year consuming electric power has reached 23,800,000,000 KW.H, nearly 10,000,000,000 yuans of the waste electricity charge.In addition plain conductor still be insulated conductor its all solve the significant problem of omnidistance insulation, because the security performance extreme difference of its exposed part, annual all can cause great economic loss for supply of electric power department owing to short circuit causes the get an electric shock generation of casualty accident of large-area power outage and personnel.The extensive upgrading urban and rural power grids insulating of China required to improve in recent years, strain clamp much adopts not peeling of NXJ type insulation wedge type strain clamp, but this wire clamp clamp place takes two fixture blocks, two faces to compress mode, having very big problem is the slip of will loosing core, till the user have to use peeling type strain clamp instead, namely expensive consuming time again.How to design and develop out the novel electric power wire clamp that the transmission of electricity distribution overhead transmission line with China development adapts, for the power grid construction of China's development matches, being one needs the great realistic problem that solves in a hurry for this reason.
Summary of the invention
Purpose of the present invention, be exactly for adapting to the power grid construction of China's development, thoroughly change all disadvantages of old-fashioned electric power equipment, design and develop out that a kind of power transmission and distribution overhead transmission line uses, have lightning protection insulation function, electrical verification grounding function, puncture conducting function and fixed clamp and suspension and pull and support the lead function, and can accomplish the anti-thunder insulator strain clamp string of the omnidistance insulation function of power transmission and distribution.
Technical scheme of the present invention is such:
At the right-hand member of lightning protection suspension insulator, be connected with U-shaped draw ring suspension by the insulator draw ring; U-shaped draw ring and taper type anti-skidding strain clamp are for being spirally connected; The cable rack ceases to be busy passes the centre bore of taper type anti-skidding strain clamp; Penetrating cable clamp body and puncture briquetting are installed on the small end cable rack ceases to be busy of taper type anti-skidding strain clamp, and it is fastening to be spirally connected; Because ratchet passes wire insulation and is communicated with core, make cable rack ceases to be busy and puncture briquetting be communicated with conduction; The side opening of puncture briquetting; compression connects the striking lead; the other end compression of striking lead connects adjustable starting rod briquetting; make the current potential on the cable rack ceases to be busy, be communicated on the adjustable starting rod by puncture briquetting, striking lead and adjustable starting rod briquetting, so just the starting rod with left end forms discharge channel; when thunder and lightning attacks then; this discharging gap, inevitable prior to insulator body release electric arc, thus played the effect that prevents lightning-caused breaking and protection insulator.Adjustable starting rod briquetting and insulating support are spirally connected and fastening adjustable starting rod, insulating support and insulating support briquetting are spirally connected and are fastened on the lightning protection suspension insulator left side, and insulating support briquetting and starting rod briquetting all have in the hole of reference column insertion lightning protection suspension insulator and locate; Adjustable starting rod thunderbolt is ablated when shortening, and unclamps the briquetting bolt, pulls out adjustable starting rod, and keeps original gap with starting rod, and it is constant to make it lightning protection effect.
The lower end of penetrating cable clamp body has three kinds of situations connecting different connectors respectively, to adapt to different needs; First kind: the lower end compression of penetrating cable clamp body connects the transition connecting rod, the following compression of transition connecting rod connects the earth brace fixed head, the fixedly electrical verification earth brace that is spirally connected on the earth brace fixed head, and the electrical verification earth brace is equipped with the earth brace cover, when needing electrical verification ground connection, can open earth brace cover Fig. 1.Second kind: the lower end of penetrating cable clamp body, compression connects electricity testing grounding ring, at exposed position electrical verification ground connection such as Fig. 2.The third: the lower end of penetrating cable clamp body, compression connects the transition connecting rod, and the lower end endoporus compression of transition connecting rod connects breakout cable such as Fig. 3.The charged gold utensil of three kinds of structures all has corresponding insulating cover to cover, and first kind is the earth brace insulating case, and second kind is the ground loop insulating case, and the third is the branch cable clamp insulating cover.
This device is fixedly connected on the cross-arm of electric pole by connecting gold utensil bolt, U-shaped link and U-shaped suspension bolt, just can satisfy lightning protection, electrical verification, puncture conduction, grip and hang pull and support, multi-functional specification requirement such as comprehensive insulating protection.This apparatus structure is simple, complete function, and easy construction, efficient energy-saving is a kind of electric power equipment renewal product.
Description of drawings
Fig. 1, one of structural representation;
Fig. 2, two of structural representation;
Fig. 3, three of structural representation;
Fig. 4, electrical verification earth brace schematic diagram;
Fig. 5, the electricity testing grounding ring schematic diagram;
Fig. 6, the penetrating cable clamp structural representation;
Fig. 7, the taper type anti-skidding structural representation of anti-the wire clamp;
Fig. 8, lightning protection suspension insulator structural representation;
Fig. 9, adjustable starting rod and briquette structure schematic diagram;
Figure 10, transition connecting rod and fixed head schematic diagram;
Figure 11, NXL type series wedge type strain clamp structural representation;
Figure 12, JNXL type wedge type insulation strain clamp structural representation;
Figure 13, NXJ type series insulation strain clamp structural representation;
Wherein, 1-U type suspension bolt; 2-connects the gold utensil bolt; The 3-starting rod; The adjustable starting rod of 4-; 5-is adjustable starting rod briquetting; 6-briquetting bolt; 7-striking lead; The 8-taper type anti-skidding strain clamp; 9-earth brace insulating case; The 10-briquetting that punctures; 11-earth brace cover; 12-electrical verification earth brace; 13-earth brace fixed head; 14-transition connecting rod; 15-penetrating cable clamp body; 16-cable rack ceases to be busy; 17-U type draw ring; 18-insulator draw ring; The 19-insulating support; 20-insulating support briquetting; 21-is adjustable starting rod insulating case; 22-lightning protection suspension insulator; 23-starting rod briquetting; 24-connects gold utensil; 25-U type link; 26-ground loop insulating case; The 27-electricity testing grounding ring; 28-branch cable clamp insulating cover.
At the right-hand member of lightning protection suspension insulator 22, be connected taper type anti-skidding strain clamp 8 by insulator draw ring 18 with U-shaped draw ring 17 suspensions; Cable rack ceases to be busy 16 passes taper type anti-skidding strain clamp 8, on the cable rack ceases to be busy 16 of taper type anti-skidding strain insulator line 8 small ends, the puncture that is spirally connected is clamping penetrating cable clamp body 15 and puncture briquetting 10, the 10 upper end side opening compressions of puncture briquetting are connecting striking lead 7, the other end compression of striking lead 7 is connecting adjustable starting rod briquetting 5, and adjustable starting rod briquetting 5 and insulating support 19 are spirally connected adjustable starting rod 4 by briquetting bolt 6 and compress; Lightning protection suspension insulator 22 left ends, there have starting rod 3 and starting rod briquetting 23 to be spirally connected to be fastening, makes between starting rod 3 and the adjustable starting rod 4 and form discharging gap; Insulating support 19 and insulating support briquetting 20 are spirally connected and are fastened on the right side of lightning protection suspension insulator 22; The lower end of penetrating cable clamp body 15, compression is connecting transition connecting rod 14, the lower end of transition connecting rod 14, compression is connecting earth brace fixed head 13, the earth brace fixed head 13 electrical verification earth brace 12 that is being spirally connected, electrical verification earth brace 12 is equipped with earth brace cover 11, and puncture briquetting 10 is equipped with earth brace insulating case 9, will expose conducting position and all be enclosed in the earth brace insulating case 9; Adjustable starting rod briquetting 5 is equipped with adjustable starting rod insulating case 21, will expose conducting position and all be enclosed in the adjustable starting rod insulating case 21.This device is fixedly connected on the cross-arm of line pole by connecting gold utensil bolt 2, U-shaped link 25 and U-shaped suspension bolt 1.
Wherein: when adjustable starting rod 4 thunderbolt ablations shorten, unclamp briquetting bolt 6, pull out adjustable starting rod 4, clamp briquetting bolt 6 again, make to keep original gap between adjustable starting rod 4 and the starting rod 3, it is constant to make it lightning protection effect.
Wherein: the lower end of penetrating cable clamp body 15, compression connects electricity testing grounding ring 27, and selects ground loop insulating case 26 for use, will expose conducting position and all be enclosed in the ground loop insulating case 26.
Wherein: the lower end of penetrating cable clamp body 15, compression connects transition connecting rod 14, when need divide in main line when picking out branched line, the cable compression of branched line is connected in the endoporus of transition connecting rod 14, and select branch cable clamp insulating cover 28 for use, will expose conducting position and all be enclosed in the branch cable clamp insulating cover 28.
Wherein: according to the specification of cable rack ceases to be busy 16, use the taper type anti-skidding strain clamp 8 of different size, to satisfy the needs of different transmission and distribution circuits.
Wherein, insulating support 19 and insulating support briquetting 20 are spirally connected and are fastened on lightning protection suspension insulator 22 right sides, inserted by the reference column on the insulating support briquetting 20 in the location hole of insulator 22, make it the location, to guarantee gap and the position between adjustable starting rod 4 and the starting rod 3.
Wherein: taper type anti-skidding strain clamp 8 changes to NXL type series wedge type strain clamp or JNXL type insulation wedge type strain clamp or NXJ type series insulation strain clamp, to be used for insulated conductor peeling or not peeling of insulated conductor or plain conductor; More than the different wire clamps of three classes, should be equipped with corresponding insulating sheath; When with insulated conductor peeling or plain conductor, just without striking lead 7.
Illustrate: this device has improved the original patented product of our company:
1. lightning protection suspension insulator.(see the patent No.: 200920068156.8)
2. taper type anti-skidding strain clamp.(see the patent No.: 200920068157.2)
Certain applications the original patented product of our company be: the column support type arrester device of band electrical verification earth brace and penetrating cable clamp (is seen the patent No.: 200920068155.3).