CN107706549B - It is a kind of to clamp insulated cable penetrating cable clamp certainly - Google Patents

It is a kind of to clamp insulated cable penetrating cable clamp certainly Download PDF

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Publication number
CN107706549B
CN107706549B CN201710218756.7A CN201710218756A CN107706549B CN 107706549 B CN107706549 B CN 107706549B CN 201710218756 A CN201710218756 A CN 201710218756A CN 107706549 B CN107706549 B CN 107706549B
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CN
China
Prior art keywords
electromagnet
gland
clamp
card slot
cable
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.)
Active
Application number
CN201710218756.7A
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Chinese (zh)
Other versions
CN107706549A (en
Inventor
方雄伟
钱宾
方嘉伟
徐辉
颜明华
刘利平
童雄伟
徐小峰
张越
夏耀春
韩统
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STATE GRID ZHEJIANG LONGYOU COUNTY POWER SUPPLY Co Ltd
State Grid Corp of China SGCC
Quzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
STATE GRID ZHEJIANG LONGYOU COUNTY POWER SUPPLY Co Ltd
State Grid Corp of China SGCC
Quzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by STATE GRID ZHEJIANG LONGYOU COUNTY POWER SUPPLY Co Ltd, State Grid Corp of China SGCC, Quzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical STATE GRID ZHEJIANG LONGYOU COUNTY POWER SUPPLY Co Ltd
Priority to CN201710218756.7A priority Critical patent/CN107706549B/en
Publication of CN107706549A publication Critical patent/CN107706549A/en
Application granted granted Critical
Publication of CN107706549B publication Critical patent/CN107706549B/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/247Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by springs
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/05Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/6205Two-part coupling devices held in engagement by a magnet
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64Means for preventing incorrect coupling
    • H01R13/641Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • H01R13/713Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H01R13/7137Structural association with built-in electrical component with built-in switch the switch being a safety switch with thermal interrupter
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/717Structural association with built-in electrical component with built-in light source
    • H01R13/7175Light emitting diodes (LEDs)
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/01Connections using shape memory materials, e.g. shape memory metal

Abstract

The present invention provides a kind of from insulated cable penetrating cable clamp is clamped, and is related to a kind of insulated cable penetrating cable clamp.It solves in the prior art the problem of insulation puncture line clamping tightening gland is laborious, and power loosening is accommodated in use.This clamps insulated cable penetrating cable clamp certainly, including to the first gland and the second gland set, the fastening bolt across gland, the left and right card slot for being used to clamp cable positioned at fastening bolt two sides, each card slot is by being located at the first gland and constituting on the second gland to two and half card slots set, piercing blade is provided in half card slot, the first left electromagnet, the first right electromagnet are respectively arranged with above left and right two card slots on the first gland, two electromagnet series connection, are provided with iron block corresponding with electromagnet on the first gland or magnet on the second gland.The present invention automatically increases the intensifying force of two glands after piercing blade and conductive contact, and remains this clamping force in use.

Description

It is a kind of to clamp insulated cable penetrating cable clamp certainly
Technical field
The invention belongs to technical field of electric equipment, are related to a kind of insulated cable penetrating cable clamp.
Background technique
Insulation puncture line clamping is mainly by two split glands, piercing blade, the bolt across two glands, torque nut Deng composition.When cable need to do branch or connect, after determining main line branch location, the torque spiral shell on wire clamp is twisted with box spanner Mother contacts blade meeting penetrating insulating layer of cable in the process, contacts with conductor, and gasket ring voltage cable is punctured around position, When torque reaches setting value, nut moment explosive separation, main line and branch line are switched on.With simple installation, low cost, safety Reliable non-maintaining feature.Insulating layer it is not necessary that leader cable is truncated, without peelling off cable can do cable branch, and connector is completely exhausted Edge, can livewire work, live branch can be made in cable any position.Without the use of termination rack, coupling box.But it is existing exhausted Edge penetrating cable clamp is during installation, laborious by bolt tightening gland, especially when carrying out remote-controlled operation using insulating bar;Separately Outside, with the extension of use time and external effect, the aid power for changing two glands can be made to loosen, cause waterproof poor, wear The poor contact of bayonet piece and conducting wire, oxidation is serious, and resistance increases, obvious phenomenon of generating heat.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, propose a kind of from clamping insulated cable puncture Wire clamp, this automatically increases the intensifying force of two glands after piercing blade and conductive contact, and remains in use this Clamping force.
Object of the invention can be realized by the following technical scheme: it is a kind of from clamping insulated cable penetrating cable clamp, including To the first gland and the second gland set, across the fastening bolt of gland, positioned at fastening bolt two sides for clamping cable Left and right card slot, each card slot are set in half card slot by being located at the first gland and constituting on the second gland to two and half card slots set It is equipped with piercing blade;The first left electromagnet, the first right electricity are respectively arranged with above left and right two card slots on the first gland Magnet, two electromagnet series connection, the conducting wire both ends of electromagnet are electric with the piercing blade in the card slot of left and right two on gland respectively Connection is provided with the second left electromagnetism corresponding with the first left electromagnet, the first right electromagnet on the first gland on the second gland Iron, the second right electromagnet, the second left electromagnet are connected with the second right electromagnet, and the second left electromagnet is led with the second right electromagnet Line both ends are electrically connected with the piercing blade in the card slot of left and right two on the second gland respectively.When piercing blade and conductive contact Afterwards, the first gland is identical as the magnetic direction that the electromagnet on the second gland generates, so that two corresponding electromagnet generate mutually The magnetic force of attraction, so that two glands generate the further clamping force to cable.
From clamping insulated cable penetrating cable clamp, the first left electromagnet and the first right electromagnet or the second left electricity in above-mentioned Switch is provided on conducting wire between magnet and the second right electromagnet, the switch is temperature detect switch (TDS).When the temperature of penetrating cable clamp When more than certain limit, switch is disconnected, so that electromagnet loses magnetic force.
From insulated cable penetrating cable clamp is clamped in above-mentioned, spring, the spring are cased on the bolt between two glands Both ends for two-way memory alloy spring, spring are electrically connected by conducting wire with the piercing blade of left and right card slot.Normal temperature state spring For elongation state, two cover boards of opening between two cover boards are supported on, convenient for putting in conducting wire in card slot;When there is electric current to pass through bullet When spring, since spring temperature increases, so that spring contraction, consequently facilitating the clamping of two cover boards.
From clamping insulated cable penetrating cable clamp, the first left electromagnet and the first right electromagnet or the second left electricity in above-mentioned LED light is connected on conducting wire between magnet and the second right electromagnet.After piercing blade and conductive contact electric current pass through conducting wire LED light lights, according to the bright degree of LED light can react the contact of paracentesis depth or piercing blade with conducting wire it is whether good, Electromagnet whether steady operation.Especially suitable for using distance farther out or position is in the penetrating cable clamp of higher position.
From insulated cable penetrating cable clamp is clamped in above-mentioned, it is provided in the gland at the both ends of each half card slot flexible Slot is provided with the telescopic block moved up and down along telescopic chute in telescopic chute, and telescopic block end, which has, cooperates flexible flutes with conducting wire, Magnet is provided on sliding block, the magnetic field of magnets direction of the telescopic block on opposite two halves card slot is identical, the magnetic of the magnet of telescopic block Field is opposite with the magnetic direction of electromagnet at half card slot where the telescopic block.When electromagnet has magnetic force, using its with it is flexible Repulsion on block between magnet presses against telescopic block stretching on cable, blocks card slot both ends, plays to card slot port sealing Effect.
From insulated cable penetrating cable clamp is clamped in above-mentioned, control telescopic block contracting is provided between telescopic block and card slot The reset spring returned.
In above-mentioned, the second left electromagnet, the second right electromagnet with two and half card slots on the cover board stab knife By switching switch connection between piece, switch the order of connection of switching two electromagnet and two piercing blades, to change electricity The current direction of magnet clamps or opens to control gland, facilitates operation.
From insulated cable penetrating cable clamp is clamped in above-mentioned, the fastening bolt is non-threaded polished rod.In order to cover Plate is moved along polished rod.
From insulated cable penetrating cable clamp is clamped in above-mentioned, pass through friendship between the piercing blade therein and electromagnet Circulate DC rectifier circuit connection.To apply penetrating cable clamp on ac cable.
From insulated cable penetrating cable clamp is clamped in above-mentioned, it is provided between the piercing blade therein and electromagnet Current-limiting circuit, for limiting the electric current flowed through on conducting wire.
From insulated cable penetrating cable clamp is clamped in above-mentioned, connect be provided on the conductor of two card slots it is in parallel with electromagnet Resistance, for providing certain voltage for electromagnet.
Compared with prior art, it originally has the advantage that
1, the present invention in gland by being arranged electromagnet, and the electric current of electromagnet is with the electricity of piercing blade and conducting wire It contacts and is connected and generates electromagnetic force, so that generating additional clamping force between two glands, be not only convenient for the clamp operation of bolt, Also help holding chucking power.
2, the present invention utilizes the corresponding electromagnet of upper and lower cover plates, and the clamping of two cover boards can be easily controlled by change-over switch Or it opens, the exposure level for observing piercing blade and conducting wire that can be convenient using the indicator light being connect with lamp.
3, the present invention utilizes the control that can cooperate temperature detect switch (TDS) according to the telescopic block of magnetostrictive can be when temperature is high certainly The both ends of dynamic opening card slot, to timely reduce the temperature of thorn wire clamp.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one.
Fig. 2 is another connection status diagram of the switching switch of embodiment one.
Fig. 3 is the schematic diagram at the telescopic block of embodiment one.
Fig. 4 is the structural schematic diagram of embodiment two.
In figure, the first gland 1, the second gland 2, fastening bolt 3, piercing blade 4, the first left electromagnet 5, the first right electromagnetism Iron 6, iron block 7, the second left electromagnet 8, the second right electromagnet 9, temperature detect switch (TDS) 10, LED light 11, telescopic block 12, cable 13, centre Knob 14, connection conductor 15, two-way memory alloy spring 16.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described in conjunction with attached drawing, However, the present invention is not limited to these examples.
Embodiment one
As shown in Figure 1, 2, 3, a kind of from insulated cable penetrating cable clamp is clamped, including to the first gland 1 set and the second pressure Lid 2, across the fastening bolt 3 of gland, positioned at fastening bolt two sides for clamping the left and right card slot of cable, each card slot by Constituting on the first gland and the second gland to two and half card slots set, is provided with piercing blade 4 in half card slot;First The first left electromagnet 5, the first right electromagnet 6, two electromagnet strings are respectively arranged with above left and right two card slots on gland Connection, the conducting wire both ends of electromagnet are electrically connected with the piercing blade in the card slot of left and right two on gland respectively, set on the second gland It is equipped with the second left electromagnet 8 corresponding with the first left electromagnet, the first right electromagnet on the first gland, the second right electromagnet 9, Second left electromagnet is connected with the second right electromagnet, and the conducting wire both ends of the second left electromagnet and the second right electromagnet are respectively with second Piercing blade electrical connection in the card slot of left and right two on gland.After piercing blade and conductive contact, the first gland and second The magnetic direction that electromagnet on gland generates is identical, so that two corresponding electromagnet generate the magnetic force to attract each other, so that two Gland generates the further clamping force to cable.
It is set on conducting wire between first left electromagnet and the first right electromagnet or the second left electromagnet and the second right electromagnet It is equipped with switch, the switch is temperature detect switch (TDS) 10.When the temperature of penetrating cable clamp is more than certain limit, switch is disconnected, so that Electromagnet loses magnetic force.
Connect on conducting wire between first left electromagnet and the first right electromagnet or the second left electromagnet and the second right electromagnet It is connected to LED light 11, LED light is located on gland shell.When piercing blade with conductive contact electric current by conducting wire after LED light light, According to the bright degree of LED light can react whether the contact of paracentesis depth or piercing blade with conducting wire good, electromagnet whether Steady operation.Especially suitable for using distance farther out or position is in the penetrating cable clamp of higher position.
It is provided with telescopic chute in the gland at the both ends of each half card slot, is provided in telescopic chute and is moved down along telescopic chute Dynamic telescopic block 12, telescopic block end, which has, cooperates flexible flutes with conducting wire, is provided with magnet, opposite two halves card slot in sliding block On telescopic block magnetic field of magnets direction it is identical, the electromagnetism at the magnetic field of the magnet of telescopic block and half card slot where the telescopic block The magnetic direction of iron is opposite.When electromagnet has magnetic force, using its repulsion between magnet in telescopic block telescopic block is stretched out It presses against on cable 13, blocks card slot both ends, play the role of to card slot port sealing.It is provided between telescopic block and card slot Control the reset spring that telescopic block retracts.
Second left electromagnet, the second right electromagnet and between the piercing blade of two and half card slots on the cover board by cutting Switch connection is changed, switches the order of connection of switching two electromagnet and two piercing blades, to change the electric current side of electromagnet To, thus control gland clamp or open, facilitate operation.Switching switch includes intermediate knob 14, is provided on knob for connecting Connect the connection conductor 15 of two wire terminations.
Turn DC rectifier circuit connection by exchanging between the piercing blade and electromagnet.To answer penetrating cable clamp With on ac cable.Current limit circuit is set between the piercing blade therein and electromagnet, flows through conducting wire for limiting On electric current.It connects and is provided with the resistance in parallel with electromagnet on the conductor of two card slots, for providing certain electricity for electromagnet Pressure, naturally it is also possible to use the conducting wire of electromagnet as the conductor of two card slots of connection left and right.
Embodiment two
As shown in figure 4, being cased with spring on the bolt between two glands in above-mentioned, the spring is that round trip memory is closed The both ends of golden spring 16, spring are electrically connected by conducting wire with the piercing blade of left and right card slot.Normal temperature state spring is elongation state, Two cover boards of opening between two cover boards are supported on, convenient for putting in conducting wire in card slot;When there is electric current to pass through spring, due to bullet Spring temperature increases, so that spring contraction, consequently facilitating the clamping of two cover boards.The fastening bolt is non-threaded polished rod.With It is moved convenient for cover board along polished rod.Make two gland clamping cables when installation by the way of pressure, then relies on the electromagnetism of electromagnet Power keeps clamping force, and when needing to remove penetrating cable clamp, the electric current in conducting wire is stopped, so that two-way memory alloy spring extends To which two glands be separated.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (7)

1. a kind of from clamping insulated cable penetrating cable clamp, including to the first gland and the second gland set, across the fastening of gland Bolt, the left and right card slot for being used to clamp cable positioned at fastening bolt two sides, each card slot is by being located at the first gland and the second pressure What is covered constitutes two and half card slots set, is provided with piercing blade in half card slot, which is characterized in that on the first gland The first left electromagnet, the first right electromagnet, two electromagnet series connection, electromagnet are respectively arranged with above left and right two card slots Conducting wire both ends be electrically connected respectively with the piercing blade in the card slot of left and right two on gland, be provided on the second gland with first The first left electromagnet on gland, the corresponding second left electromagnet of the first right electromagnet, the second right electromagnet, the second left electromagnet Connect with the second right electromagnet, the conducting wire both ends of the second left electromagnet and the second right electromagnet respectively with the left and right on the second gland Piercing blade electrical connection in two card slots;First gland is identical as the magnetic direction that the electromagnet on the second gland generates.
2. according to claim 1 from clamping insulated cable penetrating cable clamp, which is characterized in that the first left electromagnet and first Switch is provided on conducting wire between right electromagnet or the second left electromagnet and the second right electromagnet, the switch is opened for temperature control It closes.
3. according to claim 1 from clamping insulated cable penetrating cable clamp, which is characterized in that on the bolt between two glands It is cased with spring, the spring is two-way memory alloy spring, and the both ends of spring pass through the piercing blade of conducting wire and left and right card slot electricity Connection.
4. according to claim 1 from clamping insulated cable penetrating cable clamp, which is characterized in that the first left electromagnet and first LED light is connected on conducting wire between right electromagnet or the second left electromagnet and the second right electromagnet.
5. according to claim 1 from clamping insulated cable penetrating cable clamp, which is characterized in that the second left electromagnet, second Right electromagnet and between the piercing blade of two and half card slots on the cover board by switching switch connection, switch switching two The order of connection of electromagnet and two piercing blades.
6. according to claim 1 from clamping insulated cable penetrating cable clamp, which is characterized in that the fastening bolt is no spiral shell The polished rod of line.
7. according to claim 1 from clamping insulated cable penetrating cable clamp, which is characterized in that the piercing blade therein It is connect between electromagnet by the rectification circuit that exchange turns direct current.
CN201710218756.7A 2017-04-05 2017-04-05 It is a kind of to clamp insulated cable penetrating cable clamp certainly Active CN107706549B (en)

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Application Number Priority Date Filing Date Title
CN201710218756.7A CN107706549B (en) 2017-04-05 2017-04-05 It is a kind of to clamp insulated cable penetrating cable clamp certainly

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CN107706549B true CN107706549B (en) 2019-05-03

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111258005A (en) * 2020-03-17 2020-06-09 东莞市厚合精密电子有限公司 Memory alloy connector

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041012A (en) * 1989-06-27 1991-08-20 Bardes Corporation, Ilsco Division Insulation piercing electrical clamp connector
US5426360A (en) * 1994-02-17 1995-06-20 Niagara Mohawk Power Corporation Secondary electrical power line parameter monitoring apparatus and system
CN202855908U (en) * 2012-06-12 2013-04-03 西安欧卡姆电气有限公司 Compressed spring type insulation piercing connector
CN103956589A (en) * 2014-03-31 2014-07-30 重庆自勇科技有限公司 Insulation puncture wire clamp
CN104037515A (en) * 2014-06-19 2014-09-10 国网四川省电力公司成都市新都供电分公司 Ground wire
WO2014152949A1 (en) * 2013-03-14 2014-09-25 Hubbell Incorporated Spring-loaded insulation piercing electrical connector
CN203883139U (en) * 2014-06-20 2014-10-15 乐清市金固金具有限公司 Insulated puncturing wire clamp for protecting circuit
US9372207B1 (en) * 2013-09-10 2016-06-21 EKM Metering, Inc. Power sensing transducer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041012A (en) * 1989-06-27 1991-08-20 Bardes Corporation, Ilsco Division Insulation piercing electrical clamp connector
US5426360A (en) * 1994-02-17 1995-06-20 Niagara Mohawk Power Corporation Secondary electrical power line parameter monitoring apparatus and system
CN202855908U (en) * 2012-06-12 2013-04-03 西安欧卡姆电气有限公司 Compressed spring type insulation piercing connector
WO2014152949A1 (en) * 2013-03-14 2014-09-25 Hubbell Incorporated Spring-loaded insulation piercing electrical connector
US9372207B1 (en) * 2013-09-10 2016-06-21 EKM Metering, Inc. Power sensing transducer
CN103956589A (en) * 2014-03-31 2014-07-30 重庆自勇科技有限公司 Insulation puncture wire clamp
CN104037515A (en) * 2014-06-19 2014-09-10 国网四川省电力公司成都市新都供电分公司 Ground wire
CN203883139U (en) * 2014-06-20 2014-10-15 乐清市金固金具有限公司 Insulated puncturing wire clamp for protecting circuit

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