13
(Performance criterion B - temporary deterioration in the performance
quality or termination of the established function with the subsequent
restoration of
normal functioning, carried out without the operator’s
intervention) Maintainability is preserved during fluctuations in supply
voltage from ~ 187 to ~ 246 V
Table 2.6-1.
Port
Degree of rigidity according to the
table 1 GOST R 51317.4.5
Voltage pulse value, kW + 10%
Power lines of the switch
“wire-
wire
”
3
2
Power lines of the switch
“wire-
ground
”
4
4
Symmetrical communication lines
of the switch
“wire-ground”
3
2
Table 2.6-2.
Typ
e
s
of
i
m
pa
ct
s
D
egr
ee
of
r
ig
id
it
y
at
t
est
in
g
Te
st
vo
lt
age,
%
in,
+
5
%
A
m
p
lit
u
de
of
dyn
amic v
ol
tage ch
ang
es,
%
Ur
D
urat
ion
of
dy
nam
ic
vo
lt
a
ge
cha
nge
s,
peri
o
ds
(m
s)
Voltage dips
1
70
30
10 (200)
Voltage
interruptions
1
0 to 20
100
1 (20)
Voltage surge
2
120
20
25 (500)
Note - Ur - rated supply voltage.
