Cable combustion performance testing device capable of simulating cable channel environment and use method

Abstract

The invention provides a cable combustion performance testing device capable of simulating a cable tunnel environment. The cable combustion performance testing device comprises a shell, a cable bridge for fixing a cable, an ignition unit acting on the cable bridge and an environment control unit for changing the internal environment of the shell, wherein the cable bridge, the ignition unit and the environment control unit are arranged in the shell; and an optical smoke density measuring unit and a smoke outlet are arranged on the upper layer in the shell, and the environment control unit can monitor and adjust the temperature, humidity and gas components in the shell. The invention further provides a combustion performance testing method of the testing device. According to the device and method, a cable can be fixed on the cable bridge; the environment in the shell is adjusted through the environment control unit; tunnel conditions can be simulated, so that adaptability is high, different testing devices do not need to be manufactured for different tunnels; the cable is ignited through the ignition unit, and combustion data of the cable is obtained based on a smoke density measuring unit, the combustion performance of the cable is tested; and the testing device and method are convenient to use.

Description

technical field [0001] The invention relates to the technical field of cable testing equipment, in particular to a cable combustion performance testing device and a usage method for simulating a cable channel environment. Background technique [0002] With the deepening of urbanization, the shortcomings of the past way of transmitting power through overhead lines, such as occupying ground space, unsightly, and not conducive to maintenance, have gradually been exposed. Instead, power is transmitted through underground cable channels, but the cable channels are located underground. , and it is a closed space. When a fire breaks out, not only the fire will spread along the cable line, but it is also not conducive to firefighting and rescue by firefighters. Therefore, the wide application of cable channels also brings a certain fire risk. The combustibles in the cable channel are mainly cables. In order to study the fire risk brought by the cable channel, it is necessary to cond...

AI Technical Summary

Problems solved by technology

[0004] In addition, the environmental temperature and humidity detection and control methods used in the existing experimental devices are not efficient

The cable channel belongs to a large space place, and the temperature and humidity detected by the ambient temperature and humidity detector cannot represent the temperature and humidity in the entire space, and there are certain errors; The distribution of temperature and humidity field is not balanced, so the efficiency of environmental temperature and humidity control in the equipment is not high

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