CN203706763U - Suspension type lightning protection cable clamp - Google Patents
Suspension type lightning protection cable clamp Download PDFInfo
- Publication number
- CN203706763U CN203706763U CN201320816081.3U CN201320816081U CN203706763U CN 203706763 U CN203706763 U CN 203706763U CN 201320816081 U CN201320816081 U CN 201320816081U CN 203706763 U CN203706763 U CN 203706763U
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- CN
- China
- Prior art keywords
- lightning protection
- clamp
- suspension type
- folder
- parallel groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a suspension type lightning protection cable clamp which comprises a parallel groove clamp, and a lightning protection module electrically connected with the parallel groove clamp, wherein the parallel groove clamp comprises upper half clamps, lower half clamps and bolt fastening assemblies; each upper half clamp covers the lower half clamp to form two clamp holes, the parallel groove clamp further comprises two fastening holes penetrating through the upper half clamps and the lower half clamps, each bolt fastening assembly is matched with one corresponding fastening hole, and the lightning protection module is detachably arranged on the lower half clamps of the parallel groove clamp. The suspension type lightning protection cable clamp is arranged on the parallel groove clamp, when the suspension type lightning protection cable clamp is used, a lower electrifying double-screw bolt of the suspension type lightning protection cable clamp is grounded, and thus during lightning, impact current generated by lightning is effectively introduced into a ground wire, further a cable and an armour clamp at the ground wire are prevented from being damaged, and normal operation of an electric power circuit is ensured.
Description
Technical field
The utility model belongs to electric armour clamp technical field, is specifically related to a kind of suspension type lightning protection wire clamp.
Background technology
Suspension type lightning protection wire clamp is that protection electric equipment and circuit exempt from the equipment that thunder and lightning damages.In the time importing lightning surge into along circuit, first suspension type lightning protection wire clamp discharges, and produce power frequency short circuit current, and utilize earthing device by the introducing the earth of discharging current safety, thus protection electric equipment and circuit.
Suspension type lightning protection wire clamp can be divided into by the priority of its development: protection gap is the suspension type lightning protection wire clamp of simple form; Cast suspension type lightning protection wire clamp, is also a protection gap, but it can be after electric discharge arc extinguishing voluntarily; Valve type suspension type lightning protection wire clamp, is that single discharging gap is divided into many short series gaps, has increased nonlinear resistance simultaneously, has improved protective value; Magnetic blow-out suspension type lightning protection wire clamp, has utilized magnetic blow-out formula spark gap, has improved arc extinguishing ability, also has restricted internal overvoltage ability simultaneously; Zinc oxide suspension type lightning protection wire clamp, utilize the desirable voltage-current characteristic of zinc oxide valve plate (non-linear high, in the time of high voltage, be low resistance characteristic, limit the voltage on suspension type lightning protection wire clamp, under normal power-frequency voltage, be high-ohmic), there is gapless, without advantages such as afterflow residual voltage are low, also can restricted internal overvoltage, be widely used.
Disconnector is as suspension type lightning protection wire clamp ancillary attachment, the use of connecting with suspension type lightning protection wire clamp, its objective is in the time that extremely breaking down appears in suspension type lightning protection wire clamp, utilize power frequency short circuit current to move by disconnector, disconnector earth terminal is thrown off automatically, and suspension type lightning protection wire clamp is out of service, and Accident prevention further expands, and depart from mark with observability to the suspension type lightning protection wire clamp that is out of order, be convenient to attendant and find that in time fault point safeguards and change.At suspension type lightning protection wire clamp during in normal operating conditions; disconnector is failure to actuate and is Low ESR (compared with suspension type lightning protection wire clamp); do not affect the protective feature of the former operating state of system and suspension type lightning protection wire clamp; guarantee uninterrupted power supply, make suspension type lightning protection wire clamp reach the instructions for use of " non-maintaining ".Disconnector is divided into hot melten type disconnector and heat-explosion type disconnector by use principle and performance.The short circuit current in suspension type lightning protection wire clamp is flow through in the utilization of hot melten type disconnector, makes the fusing of alloy fuse piece (or scolding tin) in disconnector reach the object of disengaging.Heat-explosion type disconnector utilization produces arcing by the short circuit current in suspension type lightning protection wire clamp in disconnector, ignites built-in thermal explosion element and reach the object of disengaging.
Parallel groove clamp is the parallel wire that continues, to transmit the contact gold utensil of electrical load, use very extensive, the wire jumper of non-rectilinear shaft tower, the T wiring of electric power system non-bearing junction, branch line, the electric equipment such as switch, transformer downlead, ground wire grounding downlead etc. continues, and can complete with parallel groove clamp.The scope of application of parallel groove clamp is very wide, but because parallel groove clamp is used for connecting two cables, with respect to other position of cable, this place's resistance is larger, and in the time that thunderbolt occurs, this place is as easy as rolling off a log to be damaged by thunder and lightning ablation, causes power failure.
Utility model content
The purpose of this utility model is to provide a kind of suspension type lightning protection wire clamp that prevents broken by lightning parallel groove clamp place circuit.
The technical scheme that realizes the utility model object is: a kind of suspension type lightning protection wire clamp, the lightning protection module that comprises parallel groove clamp and be electrically connected with parallel groove clamp; Parallel groove clamp comprises first folder, second folder and bolt fastening component; Each first folder covers on second folder and forms two clamp holes; This parallel groove clamp also comprises two fastener holes that run through first folder and second folder, each bolt fastening component and a corresponding fastener hole adaptation; On dismountable second folder that is arranged on and hooks wire clamp of described lightning protection module.
In such scheme, described lightning protection device comprises insulation crust, be arranged on Zinc-oxide piezoresistor in insulation crust, be electrically connected with Zinc-oxide piezoresistor upper end on connect electric double-screw bolt, be electrically connected with Zinc-oxide piezoresistor lower end under connect electric double-screw bolt; The bottom of second folder is also provided with a screw, and the top that connects electric double-screw bolt on described is spirally connected and is fixedly installed in this screw.
In such scheme, parallel groove clamp also comprises insulating base and lower insulating base; Upper insulating base and lower insulating base cover rear formation two ends and respectively have the containing cavity of two folder holes, and described first folder and second folder are arranged in this containing cavity.
In such scheme, the roof of upper insulating base is provided with two just upper open-works to each bolt fastening component; The diapire of lower insulating base is provided with a just lower open-work to second folder bottom screw, connects electric double-screw bolt through this lower open-work on described.
In such scheme, parallel groove clamp also comprises nameplate, and upper insulating base is provided with hole clipping, and nameplate is provided with the banded snap fit matching with this hole clipping.
In such scheme, the diapire of nameplate is provided with the clamping boss for being connected to upper open-work.
The utility model by arranging suspension type lightning protection wire clamp on parallel groove clamp, when use, connecing electric double-screw bolt ground connection under suspension type lightning protection wire clamp, thereby in the time of thunderbolt, the impulse current effectively thunder and lightning being produced is introduced ground wire, thereby prevent that it from damaging this place's cable and gold utensil, thereby ensure the normal operation of power circuit.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the utility model the first structure;
A kind of perspective view of Fig. 2 when to be the wire clamp of suspension type lightning protection shown in Fig. 1 observe from another angle;
Fig. 3 is a kind of half sectional view of the wire clamp of suspension type lightning protection shown in Fig. 1;
Fig. 4 is the another kind of half sectional view of the wire clamp of suspension type lightning protection shown in Fig. 1;
Fig. 5 is a kind of explosive view of the wire clamp of suspension type lightning protection shown in Fig. 1;
A kind of explosive view of Fig. 6 when to be the wire clamp of suspension type lightning protection shown in Fig. 1 observe from another angle;
Fig. 7 is a kind of half sectional view of the utility model the second structure.
Embodiment
(embodiment 1)
The present embodiment is a kind of suspension type lightning protection wire clamp, sees shown in Fig. 1 to Fig. 6 the lightning protection module 5 that comprises parallel groove clamp 1 and be electrically connected with parallel groove clamp; Parallel groove clamp comprises first folder 2, second folder 3, bolt fastening component 4, upper insulating base 7, lower insulating base 8 and nameplate 9; Each first folder covers on second folder and forms two clamp holes; This parallel groove clamp also comprises two fastener holes 12 that run through first folder and second folder, each bolt fastening component and a corresponding fastener hole adaptation; On dismountable second folder that is arranged on and hooks wire clamp of described lightning protection module.
Described lightning protection device comprises insulation crust 51, be arranged on Zinc-oxide piezoresistor 52 in insulation crust, be electrically connected with Zinc-oxide piezoresistor upper end on connect electric double-screw bolt 53, be electrically connected with Zinc-oxide piezoresistor lower end under connect electric double-screw bolt 54; The bottom of second folder is also provided with a screw 31, and the top that connects electric double-screw bolt on described is spirally connected and is fixedly installed in this screw.In the present embodiment, the upper end of Zinc-oxide piezoresistor is provided with conducting strip 55, the lower end of Zinc-oxide piezoresistor is provided with lower conducting strip 56, and the bottom that above connects electric double-screw bolt 53 is crimped on the top of conducting strip 55, under connect electric double-screw bolt 54 top apical grafting on the bottom of lower conducting strip 56.In addition, in insulation crust 51, be provided with the resin protective layer 57 for wrapping up Zinc-oxide piezoresistor, between this resin protective layer 57 and the outer wall of Zinc-oxide piezoresistor, leave air gap 58; Described resin protective layer 57 is that liquid resin is cast in insulation crust, treats that its curing molding makes.
Upper insulating base and lower insulating base cover rear formation two ends and respectively have the containing cavity 13 of two folder holes, and described first folder and second folder are arranged in this containing cavity.The roof of upper insulating base is provided with two just upper open-works 71 to each bolt fastening component; The diapire of lower insulating base is provided with a just lower open-work 81 to second folder bottom screw, connects electric double-screw bolt through this lower open-work on described.Upper insulating base is provided with hole clipping 72, and nameplate is provided with the banded snap fit 91 matching with this hole clipping.The diapire of nameplate is provided with the clamping boss 92 for being connected to upper open-work.
The present embodiment by arranging suspension type lightning protection wire clamp on parallel groove clamp, when use, connecing electric double-screw bolt ground connection under suspension type lightning protection wire clamp, thereby in the time of thunderbolt, the impulse current effectively thunder and lightning being produced is introduced ground wire, thereby prevent that it from damaging this place's cable and gold utensil, thereby ensure the normal operation of power circuit.
(embodiment 2)
The present embodiment is substantially the same manner as Example 1, and difference is: described lightning protection device also comprises a disconnector, the current enter 61 of disconnector with described under connect electric double-screw bolt and be electrically connected, the current output terminal of disconnector is as earth terminal.Because the structure function of disconnector is known technology, the present embodiment is no longer described in detail its structure.
(embodiment 3)
The present embodiment is substantially the same manner as Example 1, and difference is: the present embodiment comprise with under connect the suspension type lightning protection wire clamp discharge counter that electric double-screw bolt 54 is electrically connected.
(embodiment 4)
The present embodiment is substantially the same manner as Example 1, and as shown in Figure 7, difference is: described lightning protection device also comprise temperature sensor 59, with the middle control module of temperature sensor electrical connection and the radio receiving transmitting module being connected with middle control module.Described temperature sensor 59 comprises two thermo-sensitive resistors that are positioned at insulation crust 51, and these two thermo-sensitive resistors distribute and are arranged on the outside of Zinc-oxide piezoresistor; Described middle control module and radio receiving transmitting module can cast in insulation crust 51, also can be arranged on outside insulation crust 51, are only electrically connected with thermo-sensitive resistor by wire.In the present embodiment, each thermo-sensitive resistor arranges in abutting connection with air gap 58, because occur once thunderbolt, in this air gap, air themperature can sharply raise, and compares the cured resin inside that thermo-sensitive resistor is embedded in to non-conductor, and this structural response is rapid, sensitiveer reliable.
In use, if monitor thermo-sensitive resistor, the variation of temperature rise is in preset range suddenly for the present embodiment, and middle control module judges that Zinc-oxide piezoresistor is by a thunder-strike current, and this information exchange is crossed to radio receiving transmitting module sends to distance host.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (6)
1. a suspension type lightning protection wire clamp, comprises parallel groove clamp (1); Parallel groove clamp comprises that first presss from both sides (2), second presss from both sides (3) and bolt fastening component (4); Each first folder covers on second folder and forms two clamp holes; This parallel groove clamp also comprises two fastener holes (12) that run through first folder and second folder, each bolt fastening component and a corresponding fastener hole adaptation; It is characterized in that: this suspension type lightning protection wire clamp also comprises the lightning protection module (5) being electrically connected with parallel groove clamp; On dismountable second folder that is arranged on and hooks wire clamp of described lightning protection module.
2. suspension type lightning protection wire clamp according to claim 1, is characterized in that: described lightning protection device comprises insulation crust (51), be arranged on Zinc-oxide piezoresistor (52) in insulation crust, be electrically connected with Zinc-oxide piezoresistor upper end on connect electric double-screw bolt (53), be electrically connected with Zinc-oxide piezoresistor lower end under connect electric double-screw bolt (54); The bottom of second folder is also provided with a screw (31), and the top that connects electric double-screw bolt on described is spirally connected and is fixedly installed in this screw.
3. suspension type lightning protection wire clamp according to claim 2, is characterized in that: parallel groove clamp also comprises insulating base (7) and lower insulating base (8); Upper insulating base and lower insulating base cover rear formation two ends and respectively have the containing cavity (13) of two folder holes, and described first folder and second folder are arranged in this containing cavity.
4. suspension type lightning protection wire clamp according to claim 3, is characterized in that: the roof of upper insulating base is provided with two just upper open-works (71) to each bolt fastening component; The diapire of lower insulating base is provided with a just lower open-work (81) to second folder bottom screw, connects electric double-screw bolt through this lower open-work on described.
5. suspension type lightning protection wire clamp according to claim 4, is characterized in that: parallel groove clamp also comprises nameplate (9), upper insulating base is provided with hole clipping (72), and nameplate is provided with the banded snap fit (91) matching with this hole clipping.
6. suspension type lightning protection wire clamp according to claim 5, is characterized in that: the diapire of nameplate is provided with the clamping boss (92) for being connected to upper open-work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816081.3U CN203706763U (en) | 2013-12-11 | 2013-12-11 | Suspension type lightning protection cable clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320816081.3U CN203706763U (en) | 2013-12-11 | 2013-12-11 | Suspension type lightning protection cable clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706763U true CN203706763U (en) | 2014-07-09 |
Family
ID=51057166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320816081.3U Expired - Fee Related CN203706763U (en) | 2013-12-11 | 2013-12-11 | Suspension type lightning protection cable clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714925A (en) * | 2013-12-11 | 2014-04-09 | 浙江天虹电气金具有限公司 | Hanging lightning protection wire clamp |
| CN105826702A (en) * | 2016-04-07 | 2016-08-03 | 国网山东滨州市沾化区供电公司 | Mechanical type branch connector for low-voltage power cable |
-
2013
- 2013-12-11 CN CN201320816081.3U patent/CN203706763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714925A (en) * | 2013-12-11 | 2014-04-09 | 浙江天虹电气金具有限公司 | Hanging lightning protection wire clamp |
| CN105826702A (en) * | 2016-04-07 | 2016-08-03 | 国网山东滨州市沾化区供电公司 | Mechanical type branch connector for low-voltage power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20161211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |