AS 2979-1989被替代
Traffic signal mast arms
出版：Standards Australia
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基本信息
標準編號： AS 2979-1989
標準類別：Standard
出版單位：Standards Australia
標準頁數：20
標準簡介
Specifies requirements for tubular steel mast arms which are designed to support traffic signal lanterns and associated equipment above the road way. Also applies to joint-use mast arms which, in addition to supporting traffic signal lanterns, are designed to support road lighting luminaires. Designates three specific types of mast arm, viz. Types A, B and C, based on design and constructional considerations. Does not apply to traffic signal posts, requirements for which are specified in AS 2339.
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