WARNING
Connectors and cables
The specified
±
50 V DC voltage range of the Isolated Basic acquisition card is
such that it falls below the low voltage limit as specified in IEC61010.
The limit for safe voltage and currents is set in the IEC61010
-
1 standard in
Section 6.3 – limit values for accessible parts. The limits are:
Table 12.4: Limit for safe voltage and currents is set in the IEC61010
-
1
Normal operation
Single fault condition
Voltage
70 V DC
140 V DC
33 V RMS
55 V RMS
46.7 V peak
78 V peak
Current
2 mA DC
15m A DC
0.5 mA RMS
3.5m A RMS
0.7 mA peak
5 mA peak
It is good practice to use isolated measurement cables. However, since the
voltage range of the Isolated Basic card falls below the low voltage limit for
accessible parts, non
-
protected or non
-
shrouded connectors can also be used
with this card.
Figure 12.25:
Safe connectors for use with Isolated Basic acquisition cards
12.3.4
Understanding the GN815 and GN816 isolation
The specified
±
50 V DC voltage range of the Isolated Basic acquisition card is
such that it falls below the low voltage limit as specified in IEC61010.
GEN3i
I3763-3.1 en HBM: public
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