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. 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 ...
[PDF.vz97] Leman IEC 61478 Ed. 1.1 b:2003, Live working - Ladders of insulating material Rating: 4.61 (687 Votes)
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