CN2572412Y - Safety electricity use tester - Google Patents
Safety electricity use tester Download PDFInfo
- Publication number
- CN2572412Y CN2572412Y CN 02269551 CN02269551U CN2572412Y CN 2572412 Y CN2572412 Y CN 2572412Y CN 02269551 CN02269551 CN 02269551 CN 02269551 U CN02269551 U CN 02269551U CN 2572412 Y CN2572412 Y CN 2572412Y
- Authority
- CN
- China
- Prior art keywords
- test plug
- tester
- plug
- wire test
- live wire
- 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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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a tester for safe electricity use. A fire wire test plug, a zero wire test plug and an earth wire test plug are arranged in an insulating casing of a three-wire plug in a normative mode, and a discharge resistor and a trigger switch are serially connected between the fire wire test plug and the earth wire test plug in the casing; the tester is also provided with a power supply indicating circuit and an electricity testing circuit, the tester can test whether the wire connection of a three-hole socket is correct at any time and whether voltage exists or not, and the tester can also test whether a socket line of a power supply is connected with a creepage protector and whether the creepage protector can work normally to achieve the aim of safe electricity use; a circuit of the discharge resistor and the trigger switch which are serially connected between the fire wire test plug and the earth wire test plug of the tester can be solely used as a power supply plug of an electric appliance to test the performance of the creepage protector.
Description
(1) technical field
The utility model relates to the improvement of electrician's instrument, specifically is a kind of safety utilization of electric power tester, and it belongs to the electrical measuring technical field of tools.
(2) background technology
In existing electrician's engineering construction; want standard cloth link; want standard that electrical parts such as supply socket, plug, earth leakage protective device are installed, the wiring of running check supply socket, plug whether correct? want installation, use whether correct of running check earth leakage protective device? in these electrician's working procedures, to use as many electrician's instruments such as pilot pen, multimeters.In checking the supply socket circuit, whether be connected in the constructing operation of earth leakage protective device, do not have testing tool to use.
(3) technology contents
The purpose of this utility model provides a kind of safety utilization of electric power tester; whether its wiring that not only can measure three sockets at any time is correct; no-voltage is arranged; and can check whether be connected to earth leakage protective device and earth leakage protective device in the supply socket circuit whether can regular event, realize the effect of safety utilization of electric power.
Task of the present utility model is finished by following technical scheme, has developed a kind of safety utilization of electric power tester, and in the insulation crust of three pin plug, standard is provided with the test plug of live wire, zero line, ground wire.Be connected in series a bleeder resistance and a trigger switch between live wire test plug in this shell and the ground wire test plug.
Safety also is provided with power indicating circuit with electric tester described insulation crust in it, promptly be connected in series a light emitting diode and a pull-up resistor between live wire test plug and zero line test plug.
Safety adds the examination circuit again with the described insulation crust of electric tester in it, promptly the live wire test plug also is electrically connected successively with current-limiting resistance, neon tube and hand touched electrode.
The safety described bleeder resistance of electric tester, its resistance is 7.33K Ω.
Advantage of the present utility model is: because in the insulation crust of three pin plug, standard is provided with the test plug of live wire, zero line, ground wire.And be connected in series a bleeder resistance and a trigger switch between the live wire test plug in this shell and the ground wire test plug.In will checking the supply socket circuit, whether be connected to earth leakage protective device and earth leakage protective device whether can regular event the time, the three pin plug of this tester can be inserted standard is provided with in three supply sockets of live wire, zero line, ground wire, as long as one press trigger switch gently, in the supply socket circuit that is connected to earth leakage protective device, the 30mA action current that triggers by bleeder resistance can make this earth leakage protective device action, cut off the electricity supply immediately, played the purpose of safety utilization of electric power; In the supply socket circuit that does not have earth leakage protective device; the 30mA action current that bleeder resistance triggers does not have effective object; also just can not cut off the electricity supply in the circuit, prove according to this in this supply socket circuit not connect earth leakage protective device, or the proof earth leakage protective device can not regular event and malfunctioning.Safety can be used as the attaching plug of consuming device fully with electric tester, is used for whether being connected in the testing power supply socket circuit performance of earth leakage protective device and earth leakage protective device, reaches the purpose of safety utilization of electric power.
Safety promptly is connected in series a light emitting diode and a pull-up resistor with power indicating circuit and examination circuit also are set in the insulation crust of electric tester between live wire test plug and zero line test plug; And the live wire test plug is electrically connected successively with current-limiting resistance, neon tube and hand touched electrode.Safety with the electric tester using method is: earlier the three pin plug of this electric tester is inserted on three sockets to be measured, if there is pilot lamp bright, represent that then this socket has electricity, and can not judge whether the wiring of live wire, zero line, ground wire of this socket is correct.Touch the hand touched electrode with staff again,, then represent live wire, the zero line of this socket, the wiring error of ground wire if neon tube does not work; If neon tube is bright, represent that then the wiring of live wire, zero line, ground wire of this socket is correct.Secondly under the correct prerequisite of this socket wiring, one press trigger switch gently, just can judge whether be connected to earth leakage protective device in this socket circuit according to the powering-off state of this socket circuit: if this socket circuit outage is then represented to be connected to earth leakage protective device in this socket circuit; If this socket circuit is electricity constantly, then representing does not have earth leakage protective device in this socket circuit, perhaps represents earth leakage protective device wrong position and can not regular event.
(4) accompanying drawing and embodiment
Embodiment accompanying drawings of the present utility model is as follows:
Fig. 1 is the circuit theory diagrams of safety utilization of electric power tester.
Fig. 2 is the example structure cut-open view of safety utilization of electric power tester.
Fig. 3 is the example structure front view of safety utilization of electric power tester.
Fig. 4 is the right view of Fig. 3.
Referring to Fig. 1--the 4 safety utilization of electric power testers of making, in the insulation crust 1 of three pin plug, standard is provided with the test plug of live wire L, zero line N, ground wire E.Be connected in series a bleeder resistance 2 and a trigger switch 3 between live wire L test plug in this shell 1 and the ground wire E test plug.
Safety also is provided with power indicating circuit with electric tester described insulation crust 1 in it, promptly be connected in series a light emitting diode 4 and a pull-up resistor 5 between live wire L test plug and zero line N test plug.
Safety adds the examination circuit again with the described insulation crust 1 of electric tester in it, promptly live wire L test plug also is electrically connected successively with current-limiting resistance 6, neon tube 7 and hand touched electrode 8.
The safety described bleeder resistance 2 of electric tester, its resistance is 7.33K Ω.
Claims (4)
1, a kind of safety utilization of electric power tester, in the insulation crust of three pin plug, standard is provided with the test plug of live wire, zero line, ground wire, it is characterized in that: be connected in series a bleeder resistance and a trigger switch between the live wire test plug in this shell and the ground wire test plug.
2, according to the described safety utilization of electric power tester of claim 1, it is characterized in that: described insulation crust, power indicating circuit also is set in it, promptly between live wire test plug and zero line test plug, be connected in series a light emitting diode and a pull-up resistor.
3, according to claim 1 or 2 described safety utilization of electric power testers, it is characterized in that: described insulation crust, add the examination circuit in it again, promptly the live wire test plug also is electrically connected successively with current-limiting resistance, neon tube and hand touched electrode.
4, according to the described safety utilization of electric power tester of claim 1, it is characterized in that: described bleeder resistance, its resistance are 7.33K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269551 CN2572412Y (en) | 2002-09-19 | 2002-09-19 | Safety electricity use tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269551 CN2572412Y (en) | 2002-09-19 | 2002-09-19 | Safety electricity use tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572412Y true CN2572412Y (en) | 2003-09-10 |
Family
ID=33734768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02269551 Expired - Fee Related CN2572412Y (en) | 2002-09-19 | 2002-09-19 | Safety electricity use tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572412Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515013B (en) * | 2008-02-20 | 2011-05-18 | 胜德国际研发股份有限公司 | Electricity safety inspection system and method thereof |
| CN103197191A (en) * | 2013-03-11 | 2013-07-10 | 厦门辉煌装修工程有限公司 | Multipurpose single phase socket wire-splice detector and application thereof |
-
2002
- 2002-09-19 CN CN 02269551 patent/CN2572412Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515013B (en) * | 2008-02-20 | 2011-05-18 | 胜德国际研发股份有限公司 | Electricity safety inspection system and method thereof |
| CN103197191A (en) * | 2013-03-11 | 2013-07-10 | 厦门辉煌装修工程有限公司 | Multipurpose single phase socket wire-splice detector and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |