UL1666：电缆和光缆垂直安装在竖井中时火焰蔓延高度的测试
日期:2010-11-20 00:00
UL 1666：电缆和光缆垂直安装在竖井中时火焰蔓延高度的测试
UL 1666：Standard for Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in Shafts
Abstract 摘要
This is a fire test for determining values of flame propagation height for electrical and optical-fiber cables that are for installation vertically in shafts or in vertical runs that penetrate more than one floor. The purpose of this test is to determine whether the flame propagation
characteristics of th
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