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WARNING
Measurement inputs of this instrument should not be used to measure
high
-
energy signals of measurement categories CAT II, CAT III or
CAT IV (IEC 61010
-
2
-
30:2010) (e.g. mains measurements) , unless
specifically stated for the specific input.
2.5.2 Basic insulation versus reinforced
For reference, the basic insulation and supplementary insulation and the
reinforced insulation test values for CAT II can be found below.
Table 2.2: Test voltages for the testing electric strength of solid insulation in
measuring circuits in measurement category II (IEC 61010
-
2
-
30:2010)
Nominal
voltage line to
neutral AC
RMS or DC of
MAINS being
measured. (V) Test voltage
5 s AV test V AC RMS
Impulse test V peak
Basic
insulation and
supplementary
insulation Reinforced
insulation Basic
insulation and
suplementary
insulation Reinforced
insulation
≤ 150 840 1390 1550 2500
> 150 ≤ 300 1390 2210 2500 4000
> 300 ≤ 600 2210 3510 4000 6400
> 600 ≤ 1000 3310 5400 6000 9600
Several means of protection can be used to protect a user from hazardous
voltages. As can be seen below, basic insulation and supplementary insulation
is one mean of protection, but reinforced isolation is also a means of protection.
The test voltages are different for each mean of protection, as can be found in
the table above.
GEN3i
30 I3763-3.1 en HBM: public