A fire hazard demonstration device for partially overloaded and heated fire hazards

Abstract

The invention provides a partial cable core overload heating fire risk demonstrating device. From left to right, the entire demonstrating device comprises a first power access area, a second demonstrating area and a third loading display area, wherein a power cord, a fuse, a earth leakage protection short-circuit protector and a short-circuit protector; a demonstrating module is arranged in the second demonstrating area, and the demonstrating module is such structured that two leads are arranged on a simulation frame in a parallel mode and the cable core of one of the leads is composed of onepart of broken cable core and one part of un-broken cable core; a load and a socket are arranged at the upper side of the third loading display area; a touch display screen and a key module are arranged in the middle of the third loading display area; and a working status indicating light, a reticle interface module and a touch display screen switch are arranged at the lower side of the third loading display area. With the application of the demonstrating device provided by the invention, the phenomenon and the reasons of an electric fire risk due to overload when carrying current of some leads exceeds a safety carrying current amount are demonstrated.

Description

technical field [0001] The invention belongs to the technical field of electrical fire research, in particular to a device for demonstrating fire danger due to overload and heating of partial wire cores. Background technique [0002] With the progress and development of society, the per capita electricity consumption in our country is getting higher and higher, and the layout of electrical circuits is becoming more and more complicated. While electric energy brings convenience to people, the electrical fire accidents caused by it are also increasing day by day. In recent years, according to the "China Fire Protection Yearbook", the fire statistics show that the incidence rate of electrical fires and the losses caused by them rank first among all kinds of fire causes, and the proportion of occurrences is about 30%, and the losses caused account for 10% of all fire losses. About 40%. [0003] Among various electrical faults that cause ignition sources, line overload faults a...

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Problems solved by technology

However, the domestic research on the mechanism of ignition sources caused by such faults is still in a blank stage, and a demonstration device for the fire hazard of partial core overload and heat can effectively fill this gap, which can make the fire brigade and fire dispatchers clearly understand Knowing the formation mechanism of partial core overload heating can also make ordinary people aware of the fire hazard of this type of fault, and at the same time provide a technical basis for preventing this type of ignition source

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