Test junction box convenient for on-site operation and maintenance work and use method thereof

Abstract

The invention relates to a test junction box facilitating on-site operation and maintenance work and a use method thereof. The test junction box comprises a box body and a box cover, a plurality of voltage grooves are formed in the box body, current grooves are formed between adjacent voltage grooves, voltage conductive plates are installed in the voltage grooves, and current conductive plates are installed in the current grooves; inner voltage plug wire holes are formed in the front portion and the rear portion of the voltage conducting plate and used for corresponding to outer voltage wiring holes formed in the box body, the current conducting plate comprises a left column of current conducting plate and a right column of current conducting plate, and inner current wiring holes are formed in the front portion and the rear portion of the left column of current conducting plate and the right column of current conducting plate. The box cover is used for corresponding to an external current wiring hole arranged on the box body, and the inner bottom surface of the box cover is provided with a voltage limiting device, a current limiting device, a meter changing limiting device and a dismounting buckle. The device is simple in structure, ingenious in design, convenient to use and good in operation reliability, test safety and electricity larceny prevention performance, and the working efficiency is effectively improved.

Description

technical field [0001] The invention relates to a test junction box which is convenient for on-site operation and maintenance and a method of using the same. Background technique [0002] Junction box (abbreviation for wiring test junction box) is an important device for measuring field operations, and it is widely installed between the electric energy measuring device and the transformer connected by the transformer. When the metering operation needs to replace the electric energy meter and verify the electric energy meter, change the wiring circuit by turning the voltage and current connection paddles in the junction box, so as to realize the electrified calibration and the replacement of the electric energy meter. [0003] At present, most of the junction boxes used in the measurement field still follow the structure of the traditional junction box. The traditional junction box has the following four pain points. First, the voltage and current connection of the traditiona...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the junction boxes used in the metering field still use the structure of the traditional junction box. The traditional junction box has the following four pain points. First, the voltage and current connections of the traditional junction box are likely to cause wiring errors and safety risks.

Operators are likely to fail to move the connecting piece in place due to skill level or negligence, which will cause errors in the measurement line and affect the measurement data

Not only that, two screwdrivers are needed to move the connecting piece, and the head of the screwdriver is very easy to touch other live terminals when turning, resulting in an open circuit or short circuit, which has a high safety risk; and the anti-theft performance of the traditional junction box is insufficient.

The traditional junction box uses a threaded lead seal, and the cover has no protective cover. It is very easy to install a power stealing device, resulting in abnormal line loss, disrupting the power market, and easily causing power safety accidents. Secondly, the field test operation of the traditional junction box is cumbersome.

According to the operating procedures, it takes 5 screwdriver actions to move a connecting piece, which is cumbersome and affects work efficiency; finally, the traditional junction box still has problems such as unclear identification and insufficient functions; although some new junction boxes can improve the above pain points, but There are problems with insufficient safety structures such as changing the size of the junction box and adding springs

The layout of the old-fashioned metering box is very compact. If the size of the junction box is increased, the installation will not be possible

The spring structure has the problem of uncertain service life and mechanical strength in different environments, and the spring structure is not safe enough

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