CN105203802B - The cut-in method of power cord connector and external power cord - Google Patents

The cut-in method of power cord connector and external power cord Download PDF

Info

Publication number
CN105203802B
CN105203802B CN201510603121.XA CN201510603121A CN105203802B CN 105203802 B CN105203802 B CN 105203802B CN 201510603121 A CN201510603121 A CN 201510603121A CN 105203802 B CN105203802 B CN 105203802B
Authority
CN
China
Prior art keywords
power cord
fuse
bayonet
control circuit
external power
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
CN201510603121.XA
Other languages
Chinese (zh)
Other versions
CN105203802A (en
Inventor
余勇
伍明铭
李希宁
熊刚
张积忠
丘奕林
蔡耀广
郭泽豪
曾润
李鸿盛
叶莹莹
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.)
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Original Assignee
Foshan Power Supply Bureau of Guangdong Power Grid Corp
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 Foshan Power Supply Bureau of Guangdong Power Grid Corp filed Critical Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority to CN201510603121.XA priority Critical patent/CN105203802B/en
Publication of CN105203802A publication Critical patent/CN105203802A/en
Application granted granted Critical
Publication of CN105203802B publication Critical patent/CN105203802B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention discloses a kind of power cord connector and the cut-in method of external power cord; including the plug connector that can be mutually clamped with fuse bayonet; the one end of the plug connector away from the fuse bayonet is equipped with insulated handle; the insulated handle is internally provided with the control circuit for including overload protection module; the control circuit is electrically connected with the plug connector; external power cord is electrically connected with the control circuit and the plug connector respectively, and the control circuit is controlled by the controller being arranged on the insulated handle.The power cord connector, external power cord can be accessed easily in power-supply system, eliminate using extra metal tools and multi-mode operation step, safe operation, efficient, easy to use.The cut-in method of the external power cord, simplifies the step of external power cord is accessed power-supply system, efficient without using extra metal tools, safe operation, conveniently.

Description

The cut-in method of power cord connector and external power cord
Technical field
The present invention relates to experiment security technology area, more particularly to the access side of a kind of power cord connector and external power cord Method.
Background technology
In the power-supply system of many light current computer rooms such as communications equipment room, bayonet type fuse is commonly used.Traditional, power supply wiring connects It is to fix the line ear on power cord through in the screw below fuse bayonet and by nut when connecing power-supply system.Light current Computer room usually requires to carry out the extraordinary maintenance of power-supply system, and such as the verification electric discharge of storage battery, this is just needed exterior storage battery Accessed temporarily in power-supply system Deng external power supply.Generally, the interim access system in one end of external power supply is needed into following steps: (1) first fuse is extracted with instrument;(2) movable hex(agonal)screw and its nut are turned on instrument;(3) hex(agonal)screw is passed through The line ear and metal gasket of external power supply;(4) movable hex(agonal)screw and its nut and line ear are fixed with instrument;(5) voltmeter is used Whether the voltage for measuring bayonet both ends is close or consistent;(6) fuse is pressed into bayonet with instrument.When taking out exterior temporary source Then repeat above-mentioned inverse process.When external power supply is accessed or is taken out, it is necessary to use screwdriver, interior Allen key, spanner, electricity The extra instrument such as table is pressed, and is carried out according to above-mentioned steps, it is complicated, efficiency is low.In addition, screwdriver, interior Allen key, spanner False touch is easy to Deng metal tools and touches grounded weak electric screen cabinet to cause short circuit, security is low.
The content of the invention
Based on this, the defects of the invention reside in the prior art is overcome, there is provided a kind of safe operation, efficient, easy to use Power cord connector and external power cord cut-in method.
Its technical solution is as follows:
A kind of power cord connector, including the plug connector that can be mutually clamped with fuse bayonet, the plug connector is away from described molten One end of disconnected device bayonet is equipped with insulated handle, and the insulated handle is internally provided with the control circuit for including overload protection module, institute Control circuit to be stated to be electrically connected with the plug connector, external power cord is electrically connected with the control circuit and the plug connector respectively, The control circuit is controlled by the controller being arranged on the insulated handle.
In one of the embodiments, the control circuit further includes voltage measurement module, and the voltage measurement module leads to Cross the controller and show measurement result.
In one of the embodiments, the plug connector includes the body that is connected with the insulated handle and from described Two grafting blocks that body both ends are stretched out, the control circuit are electrically connected by conducting wire with the grafting block of described body one end, institute External power cord is stated to be electrically connected with the grafting block of the body other end by conducting wire, the external power cord by conducting wire also with The control circuit is electrically connected.
In one of the embodiments, the distance between two described grafting block most proximal ends are less than or equal to the fuse The distance between the distance between two screens most proximal ends of bayonet, two described grafting block distalmost end are greater than or equal to described molten The distance between two screens distalmost end of disconnected device bayonet, the width of the grafting block is adapted with the screens.
In one of the embodiments, the two described one end of grafting block away from the body are respectively equipped with insulation barrier, When the grafting block is inserted into the fuse bayonet, the insulation barrier is located at the outside of the fuse bayonet.
In one of the embodiments, the control circuit further includes break-make module, and the controller includes switch, described Switch is used to control the break-make module.
In one of the embodiments, the voltage measurement module is electrically connected with the break-make module, when the voltage is surveyed When the voltage of amount module measure is normal, the break-make module passes through ON-OFF control circuit break-make;When the voltage measurement module is surveyed When fixed voltage is abnormal, the break-make module directly disconnects.
In one of the embodiments, the controller further includes display, and the display is indicator light or display screen Curtain, the display are electrically connected with the voltage measurement module.
A kind of cut-in method of external power cord, including power cord connector described above, comprise the following steps:
If having fuse in the spare fuse bayonet of power-supply system, fuse is taken out from the fuse bayonet, And the power cord connector is pressed into the fuse bayonet;If there is no fuse in the spare fuse bayonet of power-supply system, The power cord connector is directly pressed into the fuse bayonet;
It is whether normal that the voltage at fuse bayonet both ends is detected by voltmeter, if normally, controlled by controller described in Control circuit, makes one end of external power cord access in power-supply system;If abnormal, the power cord connector is removed, carries out event Barrier detection.
A kind of cut-in method of external power cord, including power cord connector described above, comprise the following steps:
If having fuse in the spare fuse bayonet of power-supply system, fuse is taken out from the fuse bayonet, And the power cord connector is pressed into the fuse bayonet;If there is no fuse in the spare fuse bayonet of power-supply system, The power cord connector is directly pressed into the fuse bayonet;
It is whether normal that the voltage at fuse bayonet both ends is obtained by voltage measurement module, if normally, passing through controller control The control circuit is made, one end of external power cord is accessed in power-supply system;If abnormal, the power cord connector is removed, Carry out fault detect.
The beneficial effects of the present invention are:
The power cord connector is equipped with plug connector and insulated handle, external power cord in advance with control circuit and plug connector It is electrically connected, it is necessary to when accessing external power cord, whether operator only needs first to check has fuse on fuse bayonet, is taken if having Lower fuse, holds insulated handle and plug connector is pressed into fuse bayonet, if not having, directly hold insulated handle by grafting In part press-in fuse bayonet.It is whether normal with voltmeter measurement fuse bayonet both end voltage, if normally, passing through controller The control circuit is controlled external power cord is connected with power-supply system.The control circuit includes overload protection module, circuit After connection, the power cord connector possesses fuse function, can play a protective role to circuit.By using of the present invention Power cord connector, easily external power cord can be accessed in power-supply system, eliminate will using extra metal tools Below external power cord access fuse bayonet in screw, fuse is installed again, safe operation, it is efficient, use It is convenient.
The cut-in method of the external power cord, when accessing external power cord, it is only necessary to first check on spare fuse bayonet Whether there is fuse, fuse is removed if having, the power cord connector is pressed into fuse bayonet, if not having, directly The power cord connector will be pressed into fuse bayonet.Then, it is whether normal using external voltage table detection voltage, if just Often, you can connect external power supply and power-supply system, the step of external power cord is accessed into power-supply system is simplified, without using volume Outer metal tools, efficient, safe operation, conveniently.
The cut-in method of the external power cord, when accessing external power cord, it is only necessary to first check on spare fuse bayonet Whether there is fuse, fuse is removed if having, the power cord connector is pressed into fuse bayonet, if not having, directly The power cord connector will be pressed into fuse bayonet.The power cord connector carries voltage detecting function, if the electricity of detection Positive pressure is normal, you can connects external power supply and power-supply system, the step of external power cord is accessed power-supply system is simplified, without making It is efficient with extra metal tools and voltmeter, safe operation, conveniently.
Brief description of the drawings
Fig. 1 is the structure diagram of the power cord connector described in the embodiment of the present invention;
Fig. 2 is the connection diagram of the power cord connector and power-supply system described in the embodiment of the present invention;
Fig. 3 is the cut-in method flow chart 1 of the external power cord described in the embodiment of the present invention;
Fig. 4 is the cut-in method flow chart 2 of the external power cord described in the embodiment of the present invention.
Description of reference numerals:
100th, plug connector, 110, body, 120, grafting block, 200, insulated handle, 300, control circuit, 310, overload protection Module, 320, voltage measurement module, 330, break-make module, 400, external power cord, 500, controller, 510, switch, 520, aobvious Show device, 600, insulation barrier, 700, fuse bayonet, 710, screens, 800, power-supply system.
Embodiment
The embodiment of the present invention is described in detail below:
As shown in Figure 1 and Figure 2, a kind of power cord connector, including the plug connector 100 that can be clamped with 700 phase of fuse bayonet, The one end of the plug connector 100 away from the fuse bayonet 700 is equipped with insulated handle 200, is set inside the insulated handle 200 There is the control circuit 300 including overload protection module 310, the control circuit 300 is electrically connected with the plug connector 100, exterior Power cord 400 is electrically connected with the control circuit 300 and the plug connector 100 respectively, and the control circuit 300 is by being arranged on Controller 500 on the insulated handle 200 is controlled.The power cord connector is equipped with plug connector 100 and insulated handle 200, external power cord 400 is electrically connected with control circuit 300 and plug connector 100 in advance, and in actual use, operator only needs first to look into See on fuse bayonet 700 whether there is fuse, fuse is removed if having, hold insulated handle 200 and be pressed into plug connector 100 In fuse bayonet, if not having, directly hold insulated handle 200 and plug connector 100 is pressed into fuse bayonet.Use voltmeter Measure whether fuse 700 both end voltages of bayonet are consistent or close, if consistent or close, account for voltage is normal, if normally, leading to Crossing controller 500 controls the control circuit 300 external power cord 400 is connected with power-supply system 800.The control circuit 300 include overload protection module 310, and after external power cord 400 and power-supply system connection, the power cord connector possesses fusing Device function, can play a protective role circuit.Power cord connector of the present invention is eliminated outside using metal tools Power cord 400 accessed in 700 lower section screw of fuse bayonet, installs fuse again, safe operation, it is efficient, make With conveniently.
Further, the control circuit 300 includes voltage measurement module 320, and the voltage measurement module 320 passes through institute State controller 500 and show measurement result.The voltage measurement module 320 can be in external power cord 400 and power-supply system 800 not 700 both end voltage of fuse bayonet is measured in the case of connection and feeds back to controller 500 and shows measurement result, is passed through Voltage measurement module 320 is set, and power cord connector of the present invention can detect voltage automatically, without using extra voltage Table carries out voltage detecting, simplifies operating procedure, efficient, safe and convenient to use.Further, the control circuit 300 is gone back Including break-make module 330, the controller 500 includes switch 510, and the switch 510 can be mechanical switch or electronic switch, The switch 510 is used to control the break-make module 330, and the break-make module 330 is used to control external power cord 400 and power supply The connection situation of system 800.Whether the access of external power cord 400 being controlled by switch 510, safety, side when user operates Just.Preferably, the voltage measurement module 320 is electrically connected with the break-make module 330, when the voltage measurement module 320 is surveyed When fixed voltage is normal, it is exterior to pass through the control of switch 510 by the break-make of 510 control circuits of switch for the break-make module 330 Power cord 400 and the connection situation of power-supply system 800;It is described when the voltage of the voltage measurement module 320 measure is abnormal Break-make module 330 directly disconnects, even if user presses lower switch 510 accidentally, external power cord 400 and power-supply system 800 are not yet It can connect, so as to protect circuit, prevent security incident caused by maloperation.Further, the controller 500 further includes display Device 520, the display 520 are indicator light or display screen, and the display 520 is electrically connected with the voltage measurement module 320 Connect, for show voltage measurement as a result, user can intuitively see voltage measurements very much, be not susceptible to maloperation, It is easy to use, safe.
Further, the plug connector 100 includes the body 110 being connected with the insulated handle 200 and from described Two grafting blocks 120 that 110 both ends of body are stretched out, the control circuit 300 pass through conducting wire and the grafting block of described 110 one end of body 120 are electrically connected, and the external power cord 400 is electrically connected by conducting wire with the grafting block 120 of 110 other end of body, described External power cord 400 is also electrically connected by conducting wire with the control circuit 300.The grafting block 120 is metal grafting block.Two The distance between described 120 most proximal end of grafting block be less than or equal to the fuse bayonet 700 two 710 most proximal ends of screens it Between distance, the distance between two 120 distalmost end of grafting block are greater than or equal to two cards of the fuse bayonet 700 The distance between 710 distalmost end of position, the width of the grafting block 120 is adapted with the screens 710, so that the plug connector 100 are adapted in the insertion fuse bayonet 700 just, and being capable of clamping.Two grafting blocks 120 are away from the body 110 one end is respectively equipped with insulation barrier 600, when the grafting block 120 is inserted into the fuse bayonet 700, the insulation stop Plate 600 is located at the outside of the fuse bayonet 700.By setting insulation barrier 600, the false touch of external devices can be prevented Touch, prevent operation electric spark etc., it is safe.
The course of work of power cord connector described in the present embodiment is as follows:The power cord connector is accessed into power-supply system In 800 spare fuse bayonet 700, power-supply system 800 is not turned on external power cord 400 at this time, power-supply system 800 It is electrically connected with the grafting block 120 of 110 one end of body, external power cord 400 is electrically connected with the grafting block 120 of 110 other end of body, Whether the voltage that voltage measurement module 320 measures 700 both ends of fuse bayonet first is normal, and feeds back to display 520.Pass through Display 520 is observed, if voltage is normal, by lower switch 510 power-supply system 800 can be made to be connected with external power cord 400, is carried out Follow-up extraordinary maintenance operation;If voltage is abnormal, lower switch 510 is not pressed, removes power cord connector, whole system is carried out Row access again after fault detect maintenance.After power-supply system 800 is connected with external power cord 400, power cord of the present invention connects Head can play overload protective function instead of fuse, moreover it is possible to play the fixation that external power cord 400 is fixed instead of screw and nut Act on, the fuse in spare fuse bayonet 700 can be removed for a long time, easy to operate.By using electricity of the present invention Source wire terminal, easily can access external power cord 400 in power-supply system 800, eliminate and use extra metal tools External power cord 400 is accessed in 700 lower section screw of fuse bayonet, voltage is measured using external voltage table, installation is molten again Disconnected device, it is safe operation, efficient, easy to use.
As shown in figure 3, a kind of cut-in method of external power cord, including power cord connector described above, including it is following Step:
S110:If having fuse in the spare fuse bayonet of power-supply system, by fuse from the fuse bayonet Take out, and the power cord connector is pressed into the fuse bayonet;If without molten in the spare fuse bayonet of power-supply system Disconnected device, is directly pressed into the fuse bayonet by the power cord connector.
S120:It is whether normal that the voltage at 700 both ends of fuse bayonet is detected by voltmeter, if normally, passing through controller The 500 control control circuits 300, make one end of external power cord 400 access in power-supply system 800;If abnormal, institute is removed Power cord connector is stated, carries out fault detect.
By using the cut-in method of said external power cord, when accessing external power cord 400, it is only necessary to first check spare molten Whether there is fuse on disconnected device bayonet 700, fuse is removed if having, hold the insulated handle 200 and connect the power cord In head press-in fuse bayonet 700, if not having, directly hold the insulated handle 200 and be pressed into the power cord connector and melt In disconnected device bayonet.Then, it is whether normal using external voltage table detection voltage, if normally, you can connect external power supply and power supply System 800, simplifies the step of external power cord 400 is accessed power-supply system 800, without using extra metal tools, effect Rate is high, safe operation, conveniently.
As shown in figure 4, a kind of cut-in method of external power cord, including power cord connector described above, including it is following Step:
S210:If having fuse in the spare fuse bayonet of power-supply system, by fuse from the fuse bayonet Take out, and the power cord connector is pressed into the fuse bayonet;If without molten in the spare fuse bayonet of power-supply system Disconnected device, is directly pressed into the fuse bayonet by the power cord connector.
S220:It is whether normal that the voltage at 700 both ends of fuse bayonet is obtained by voltage measurement module 320, specifically, logical Cross the voltage status shown by observation display 520 and judge whether voltage is normal, if normally, being controlled by controller 500 described Control circuit 300, makes one end of external power cord 400 access in power-supply system 800;If abnormal, remove the power cord and connect Head, carries out fault detect.
By using the cut-in method of the external power cord 400, when accessing external power cord 400, it is only necessary to first check spare Whether there is fuse on fuse bayonet 700, fuse is removed if having, hold the insulated handle 200 by the power cord In connector press-in fuse bayonet 700, if not having, directly hold the insulated handle 200 and be pressed into the power cord connector In fuse bayonet.The power cord connector carries voltage detecting function, if the voltage of detection is normal, you can connect external power supply With power-supply system 800, the step of external power cord 400 is accessed into power-supply system 800 is simplified, without using extra metal work Tool and voltmeter, efficient, safe operation, conveniently.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, its description is more specific and detailed, but simultaneously Cannot therefore it be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of power cord connector, it is characterised in that remote including the plug connector that can be mutually clamped with fuse bayonet, the plug connector One end from the fuse bayonet is equipped with insulated handle, body that the plug connector includes being connected with the insulated handle, with And the two grafting blocks stretched out from the body both ends, the insulated handle are internally provided with the control electricity including overload protection module Road, the control circuit are electrically connected with the plug connector, and external power cord is electric with the control circuit and the plug connector respectively Connection, the control circuit are controlled by the controller being arranged on the insulated handle.
2. power cord connector according to claim 1, it is characterised in that the control circuit further includes voltage measurement mould Block, the voltage measurement module show measurement result by the controller.
3. power cord connector according to claim 2, it is characterised in that the control circuit passes through conducting wire and the body The grafting block of one end is electrically connected, and the external power cord is electrically connected by conducting wire with the grafting block of the body other end, described External power cord is also electrically connected by conducting wire with the control circuit.
4. power cord connector according to claim 3, it is characterised in that the distance between two described grafting block most proximal ends The distance between two screens most proximal ends less than or equal to the fuse bayonet, between two grafting block distalmost end Distance is greater than or equal to the distance between two screens distalmost end of the fuse bayonet, the width of the grafting block with it is described Screens is adapted.
5. power cord connector according to claim 4, it is characterised in that two grafting blocks away from the body one End is respectively equipped with insulation barrier, and when the grafting block is inserted into the fuse bayonet, the insulation barrier is located at the fuse The outside of bayonet.
6. power cord connector according to claim 5, it is characterised in that the control circuit further includes break-make module, institute Stating controller includes switch, and the switch is used to control the break-make module.
7. power cord connector according to claim 6, it is characterised in that the voltage measurement module and the break-make module It is electrically connected, when the voltage of voltage measurement module measure is normal, the break-make module passes through ON-OFF control circuit break-make;When When the voltage of the voltage measurement module measure is abnormal, the break-make module directly disconnects.
8. power cord connector according to claim 7, it is characterised in that the controller further includes display, described aobvious It is indicator light or display screen to show device, and the display is electrically connected with the voltage measurement module.
9. a kind of cut-in method of external power cord, it is characterised in that connect including claim 1-8 any one of them power cords Head, comprises the following steps:
If having fuse in the spare fuse bayonet of power-supply system, fuse is taken out from the fuse bayonet, and will The power cord connector is pressed into the fuse bayonet;If there is no fuse in the spare fuse bayonet of power-supply system, directly The power cord connector is pressed into the fuse bayonet;
It is whether normal that the voltage at fuse bayonet both ends is detected by voltage measurement module, if normally, institute is controlled by controller Control circuit is stated, one end of external power cord is accessed in power-supply system;If abnormal, the power cord connector is removed, is carried out Fault detect.
10. a kind of cut-in method of external power cord, it is characterised in that including claim 2-8 any one of them power cords Connector, comprises the following steps:
If having fuse in the spare fuse bayonet of power-supply system, fuse is taken out from the fuse bayonet, and will The power cord connector is pressed into the fuse bayonet;If there is no fuse in the spare fuse bayonet of power-supply system, directly The power cord connector is pressed into the fuse bayonet;
It is whether normal that the voltage at fuse bayonet both ends is obtained by voltage measurement module, if normally, institute is controlled by controller Control circuit is stated, one end of external power cord is accessed in power-supply system;If abnormal, the power cord connector is removed, is carried out Fault detect.
CN201510603121.XA 2015-09-18 2015-09-18 The cut-in method of power cord connector and external power cord Active CN105203802B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510603121.XA CN105203802B (en) 2015-09-18 2015-09-18 The cut-in method of power cord connector and external power cord

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510603121.XA CN105203802B (en) 2015-09-18 2015-09-18 The cut-in method of power cord connector and external power cord

Publications (2)

Publication Number Publication Date
CN105203802A CN105203802A (en) 2015-12-30
CN105203802B true CN105203802B (en) 2018-05-01

Family

ID=54951585

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510603121.XA Active CN105203802B (en) 2015-09-18 2015-09-18 The cut-in method of power cord connector and external power cord

Country Status (1)

Country Link
CN (1) CN105203802B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2170588Y (en) * 1993-07-08 1994-06-29 杨明东 Safety detecting socket
CN2233123Y (en) * 1995-02-28 1996-08-14 李林谋 Receptacle with electronic control
CN2282277Y (en) * 1996-09-02 1998-05-20 周先祥 Safety power source socket for protective household electric appliance
NO984777L (en) * 1998-04-06 1999-10-05 Cable As V Knut Foseide Safety Theft Alert Cable
CN201075500Y (en) * 2007-07-03 2008-06-18 孙丰军 Multi-functional power supply plug-in line board
US9102285B2 (en) * 2011-08-08 2015-08-11 Continental Automotive Systems, Inc. Housing electronic components in automotive fuses

Also Published As

Publication number Publication date
CN105203802A (en) 2015-12-30

Similar Documents

Publication Publication Date Title
US7764067B2 (en) High voltage cable testing method
CN203644978U (en) Multifunctional ground wire operating rod
CN203071482U (en) High-tension switchgear having gas analysis function
CN204789735U (en) Multi -functional discharge detection device of high voltage capacitor
CN201707753U (en) Combined-type electrical fire monitoring detector of residual current and temperature
CN103777112A (en) Test instrument grounding detection warning device
CN104251931B (en) General changeable type charge indicating device
CN106814288A (en) A kind of multi-functional discharging detection device of high-voltage capacitor
CN105203802B (en) The cut-in method of power cord connector and external power cord
CN203658510U (en) Voltage transformer secondary circuit grounding detector
CN105445627A (en) DC system insulation inspection and acceptance instrument
CN203232017U (en) Gas detection device for high-tension switch cabinet
CN102570439A (en) Built-in detection device of surge protector
CN209327437U (en) A kind of AC current detector
CN208608417U (en) A kind of novel cable plug is extracted and insertion safety device
CN204731374U (en) The discharging detection device of ignition coil
CN105467164A (en) A discharging rod special-purpose case with an electrical test apparatus
KR200489928Y1 (en) Insulation resistance measuring apparatus
US20120319707A1 (en) Self-monitoring power supply cord and operating equipment
CN208752157U (en) Portable high-pressure direct current cabinet PDU socket detector
CN205680881U (en) Bobbin cable universal connector the end of a thread
CN218445759U (en) Electric energy quality on-line measuring device
CN216289591U (en) Power distribution cabinet with automatic protection function
KR101370530B1 (en) Electronic socket
CN212809405U (en) Civil building electric fire safety monitoring device that uses

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant