OS GSO IEC 61478:2014
Omani Standard
Current Edition
·
Approved on
25 December 2014
Live working - Ladders of insulating material
OS GSO IEC 61478:2014 Files
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OS GSO IEC 61478:2014 Scope
This International Standard is applicable to fully insulating spliced or hook ladders with extension or having a combination of insulating and conductive sections and used for live working on a.c. or d.c. electrical installations at 1 000 V and above for a.c. and 1 500 V and above for d.c.
The ladders are classified functionally as Category 1 and Category 2. This standard concerns only ladders made of synthetic material. These ladders are used, to provide access, generally on overhead line structures and to facilitate live working, either hot stick, barehanded or a combination of both.
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