Permhsible number of short-d rcuit operations
The replacement of the arcing CI)fItacL::, is nt::l.t::s~dl'y',~when a cumulative curren1:
(r.m.~,. value) is reached. Fig .. 813 shows the permissible number of operations
under normal service conditions versus breaking current.
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40 •• 100
[/lcA
Fig.
1~13
Permissible number of CO-operations without maintenance
of the arcing contacts versus breaking current.
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