CN108519535A - A kind of detection method of single-phase three-wire formula wall socket ground wire, zero curve and phase line - Google Patents

Abstract

The invention discloses the detection methods of a kind of single-phase three-wire formula wall socket ground wire, zero curve and phase line, its main feature is that, the series network being first made of with three elements of Light-emitting diode LED high voltage rectifier 1N4007,150K ohm of current-limiting resistances, instruction in an empty three-phase power plug interior welds, connect between three electrodes there are one series network, and open on plug body three holes for install three LED lights；The plug for welding circuit is inserted into wall socket to be detected, you can the wiring condition of each circuit is differentiated according to the light on and off state of three LED lights；Have the characteristics that easy to operate, perfect in shape and function, safe and reliable, cost is extremely low, can disposably be tested with no phase line, ground wire or zero curve and confirm whether each line position be correct.

Description

A kind of detection method of single-phase three-wire formula wall socket ground wire, zero curve and phase line

Technical field：

The present invention relates to single-phase three-wire formula wall socket detection technique field, specifically a kind of single-phase three-wire formula wall socket The detection method of ground wire, zero curve and phase line detects the ground of single-phase three-wire formula wall socket especially suitable for household and office environments Whether the presence or absence of line, zero curve and phase line and wiring position are wrong.

Background technology：

Currently, for the presence or absence of ground wire, zero curve and phase line of single-phase three-wire formula wall socket of household and office environments and connecing The whether vicious detection method of line position, the most commonly used is using voltage test pencil to detect wall power sockets, this method can only It is phase line to detect the presence of phase line and which item, but cannot detect the presence of ground wire or zero curve, and ground wire is such as done washing on many electric appliances Machine, refrigerator etc. are very important, very dangerous without ground wire.

Invention content：

The purpose of the present invention is overcoming the shortcomings of above-mentioned prior art, and provide a kind of single-phase three-wire formula wall socket ground wire, zero The detection method of line and phase line；Mainly solve the problems, such as that there are insecurity for existing voltage test pencil detection wall power sockets.

The technical scheme is that：A kind of detection method of single-phase three-wire formula wall socket ground wire, zero curve and phase line, It is characterized in that, includes the following steps：

A is in an empty three-phase power plug interior welds by high voltage rectifier 1N4007,150K ohm of current-limiting resistances, instruction The series network constituted with three elements of Light-emitting diode LED is connect between three electrodes there are one such series network, And opened on plug body three holes for install three LED lights；

The plug for welding circuit is inserted into wall socket to be detected by b, you can is sentenced according to the light on and off state of three LED lights The wiring condition of not each circuit；

Alternating voltage between each electrodes of c is applied to by diode 1N4007 rectifications and after 150K Ohmic resistance current limlitings Three Light-emitting diode LED are to drive its light emission, as the detection and instruction for having no-voltage between two electrodes；As long as two electricity There is the alternating voltage more than 20V between pole, then the LED between the two electrodes will be lighted；According to the light on and off state of three LED Whether whether can determine that three electrodes, which is phase line, zero curve and ground wire, and have ground wire, wiring position wrong etc..

The detection method and prior art of a kind of single-phase three-wire formula wall socket ground wire of the present invention, zero curve and phase line Compared to substantive distinguishing features outstanding and marked improvement, 1, single circuit, phase line and zero curve are formed between phase line and ground wire Between circuit can with the circuit between zero curve and ground wire formed series relationship, so as to remained to when zero curve lacks forming circuit point Bright LED can detect the case where zero curve lacks in this way；It can be disposably tested with no phase line, ground wire or zero curve, and confirmed Whether each line position be correct；2, method is simple, perfect in shape and function, has the characteristics that easy to operate, safe and reliable, cost is extremely low.

Description of the drawings：

Fig. 1 is the circuit connection diagram of the present invention.

Specific implementation mode：

For a better understanding and implementation, providing specific embodiment below in conjunction with the accompanying drawings, the present invention will be described in detail；Illustrated embodiment It is only used for explaining the present invention, is not intended to limit the scope of the present invention.

Embodiment 1, referring to Fig. 1, for the presence or absence of single-phase three-wire formula wall socket ground wire, zero curve and phase line and wiring whether Correct detection method, using following step：

A is in an empty three-phase power plug interior welds by high voltage rectifier 1N4007,150K ohm of current-limiting resistances, instruction The series network constituted with three elements of Light-emitting diode LED is connect between three electrodes there are one series network, and is being inserted Head shell on open three holes for install three LED lights；

The plug for welding circuit is inserted into wall socket to be detected by b, you can is sentenced according to the light on and off state of three LED lights The wiring condition of not each circuit；

Alternating voltage between each electrodes of c is applied to by diode 1N4007 rectifications and after 150K Ohmic resistance current limlitings Three Light-emitting diode LED are to drive its light emission, as the detection and instruction for having no-voltage between two electrodes；As long as two electricity There is the alternating voltage more than 20V between pole, then the LED between the two electrodes will be lighted；According to the light on and off state of three LED Can determine that three electrodes, which is firewire and zero curve, and whether has ground wire；

Specific judgement state is as follows：

LED1 LED2 LED3

Bright wiring of going out is correct

Go out bright scarce ground wire

Light on and off of going out lack zero curve

Phase shortage of going out line

Light on and off expose zero reversed

Light on and off are mutually reversed

The bright reversed and scarce zero curve that exposes.

A kind of single-phase three-wire formula wall socket ground wire of the present invention, the detection method of zero curve and phase line, can disposably examine It measures whether there is or not phase line, ground wire or zero curve and confirms whether each line position be correct, easy to operate, perfect in shape and function.

Claims (1)

1. the detection method of a kind of single-phase three-wire formula wall socket ground wire, zero curve and phase line, which is characterized in that including walking as follows Suddenly：

A is in an empty three-phase power plug interior welds by high voltage rectifier 1N4007,150K ohm of current-limiting resistances, instruction The series network constituted with three elements of Light-emitting diode LED is connect between three electrodes there are one such series network, And opened on plug body three holes for install three LED lights；

The plug for welding circuit is inserted into wall socket to be detected by b, you can is sentenced according to the light on and off state of three LED lights The wiring condition of not each circuit；

Alternating voltage between each electrodes of c is applied to by diode 1N4007 rectifications and after 150K Ohmic resistance current limlitings Three Light-emitting diode LED are to drive its light emission, as the detection and instruction for having no-voltage between two electrodes；As long as two electricity There is the alternating voltage more than 20V between pole, then the LED between the two electrodes will be lighted；According to the light on and off state of three LED Whether whether can determine that three electrodes, which is phase line, zero curve and ground wire, and have ground wire, wiring position wrong etc..