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Test device of transverse spreading of fire between bunched cables

A test device and technology between cables, applied in the field of lateral fire spread test devices between bundled cables

Active Publication Date: 2017-01-04
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the researches on the fire spread of cables and supporting test devices that have been carried out so far focus on the longitudinal spread of flame along the cables, and there is no research and test device on the horizontal spread of fire between bundled cables. The characteristics of the lateral spread of fire between bundled cables The research is conducive to a comprehensive and in-depth understanding of the development law of cable fires, and then provides support for the formulation of reasonable and effective cable fire prevention and control strategies

Method used

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  • Test device of transverse spreading of fire between bunched cables
  • Test device of transverse spreading of fire between bunched cables
  • Test device of transverse spreading of fire between bunched cables

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Embodiment Construction

[0021] The fire lateral spread test device between bundled cables of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0022] Such as figure 1 , figure 2 and image 3 As shown, in this specific embodiment, the test device for fire lateral spread between bundled cables of the present invention includes a test bench main body and a supporting measurement and control system. The test bench main body includes a test bench surface 6 and two groups of cable supports 7. For the number of cable supports 7 , the user can also increase it according to actual needs. The bottom of the test bench 6 is equipped with supporting legs. The length and width of the test bench 6 are 2m X1.2m, the thickness of the table is 3cm, and the material is stainless steel. During the process, when the outer sheath of the tested cable 5 is ignited to cause molten dripping, the test table 6 will not be ignited, and eac...

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Abstract

The invention discloses a test device of transverse spreading of fire between bunched cables. The test device comprises a test bed main body and an assorted test and control system, wherein the test bed main body comprises a test bed top and a plurality of cable brackets; each cable bracket comprises a vertical rod and a plurality of transverse rods; the vertical rods can adjust the distance along the length direction of the test bed top; the transverse rods are mounted on the vertical rods and can adjust the distance along the height direction of the vertical rods; a plurality of cable fixing devices with adjustable positions are mounted on all the transverse rods; the assorted test and control system comprises a temperature acquisition system for acquiring and recording temperature data, a radiating heat flux acquisition system for acquiring and recording a radiating heat flux, a fire image acquisition system for recording fire spreading characteristics of the cables and analyzing and calculating a transverse spreading speed of the fire between the bunched cables, and an ignition system. The device can realize test analysis of the ignition risk and the fire spreading characteristics of the transversely adjacent cables under a condition of different positions of a faulted cable, and can comprehensively analyze the heat harm of fire in a region near to the bunched cables on fire.

Description

technical field [0001] The invention relates to the field of fire testing of bundled cables, in particular to a fire lateral spread test device between bundled cables for testing the fire lateral spread characteristics of bundled cables. Background technique [0002] At present, the fires caused by cable and wire failures account for a high proportion of fires in my country, which not only cause serious casualties and economic losses, but also seriously affect industrial production and people's life safety. Cables are usually arranged in bundles, and the fire spread characteristics of cable bundles directly determine the fire development rate and fire scale. In the cable fire spread research and supporting test devices that have been carried out so far, most of the fire spread along the cable lengthwise, there is no research and test device for the fire spread between bundled cables, and the lateral spread characteristics of fire between bundled cables The research is condu...

Claims

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Application Information

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IPC IPC(8): G01N25/22G01K7/02G01J5/00
CPCG01J5/00G01K7/02G01N25/22
Inventor 张佳庆张博思范明豪汪书苹李伟王刘芳谢辉翟玥郭祥军
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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