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