Clamping extender of clamp meter, clamp meter assembly and current measuring method

Abstract

The embodiment of the invention provides a clamping extender of a clamp meter, a clamp meter assembly and a current measuring method. The clamping extender comprises a first sigmoid inner core, a second sigmoid inner core, a first insulation sleeve, a second insulation sleeve, a first fixing assembly and a second fixing assembly; the first fixing assembly is used for connecting the first sigmoid inner core with a first clamp; the second fixing assembly is used for connecting the second sigmoid inner core with a second clamp; the sum of the width of the smallest external rectangle correspondingto the first sigmoid inner core and the width of the smallest external rectangle corresponding to the second sigmoid inner core is smaller than the sum of the width of the smallest external rectanglecorresponding to the first clamp and the width of the smallest external rectangle corresponding to the second clamp. According to the clamping extender, by penetrating a to-be-measured guiding wire through the position between the first sigmoid inner core and the second sigmoid inner core, destruction of a guiding wire layout, loosening and poor contact of a guiding wire, interphase short circuitand potential electric shock dangers caused by pulling of the guiding wire are prevented.

Description

technical field [0001] The invention belongs to the technical field of electronic instrument equipment, and more specifically relates to a clamp meter extender, a clamp meter assembly and a current measurement method. Background technique [0002] With the transformation of urban and rural power grids, the metering devices of residents are more centralized, the distance between the meters in the centralized meter box is getting smaller and smaller, and the wiring is getting closer and closer, which increases the difficulty of current measurement of wires. Because the existing clamp meter has a large volume, about 25 cm in length, 8 cm in width, and 4 cm in thickness, it is necessary to pull the wire away for a certain distance when measuring the current of the wire, so that the wire can be placed in the clamp of the clamp meter. , so it is easy to destroy the layout of the wires, and even cause the wires to loosen, resulting in poor contact. If the insulation layer of the t...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a clamp meter clamp extender, a clamp meter assembly and a current measurement method, aiming at solving the problem that the clamp meter in the prior art needs to pull the wire when measuring the wire current, thereby destroying the wire layout and causing Technical problems with loose wires, poor contact, or short circuits between phases and potential electric shock hazards

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