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CISDOC database

Document ID (ISN)30879
CIS number 79-343
ISSN - Serial title 0300-3329 - Sicherheitsingenieur
Year 1978
Convention or series no.
Author(s) Irresberger G.
Title Construction, use and testing of partially and fully insulated ladders
Original title Ausführung, Anwendung und Prüfung von teil- und vollisolierten Leitern zur Standortisolierung [in German]
Bibliographic information June 1978, Vol.9, No.6, p.26-41. Illus.
Abstract The use of metal or plastic ladders is growing in chemical manufacturing plants and electrical installations. Glass-fibre-reinforced thermosetting plastic ladders have satisfactory mechanical properties. Plastic uprights and rungs ensure full insulation; plastic uprights with light alloy rungs, partial insulation. Various types of ladders are described, with the results of electrical tests (dielectric strength, leakage current, breakdown voltage). Practical aspects dealt with are: short-circuit hazard with partially insulated ladders, earth contact hazard of metal ladders, fully insulated ladders for live work, properties of glued plastic ladders and their use in live work.
Descriptors (primary) insulated means of access; work on electrical equipment; portable ladders; electrical insulation
Descriptors (secondary) description of equipment; glass fibre reinforced plastics; dielectric strength; live work; insulating materials
Document type -
Subject(s) Electricity
Broad subject area(s)
Browse category(ies) Electricity