sxw910720 发表于 2013-4-12 10:59

求教Fixed arms and suspension

EN60598中4.12.4中Screwed and other fixed connections between different parts of luminaires shall be
made in such a way that they do not work loose through such torsion, bending stresses,
vibration, etc., as may occur in normal use. Fixed arms and suspension tubes shall be securely
attached.
fixed arms 在灯具中是什么装置，一般哪些灯具中会有fixed arms
   求教！！！！！
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