Ampcontrol IPD - Table 7: Insulation Test Accuracy with Respect to Trip Setting

Ampcontrol Pty Ltd – ABN 28 000 915 542
IPD USER MANUAL
IPDB014 Version 14 – SEP/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 42 of 96
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– PROPERTY OF AMPCONTROL PTY LTD
– NOT TO BE REPRODUCED IN PART
Table 7: Insulation Test Accuracy with Respect to Trip Setting
Actual Fault Resistance (MΩ)
Trip Setting
Minimum
Maximum
0.5
0.4
0.6
1
0.8
1.2
2
1.6
2.4
5
4.0
6.4
The values in the expected fault resistance range represent ±20% of the nominal value with the
exception of the higher end of the 5MΩ range.
CAUTION!
Trip setting values of 10MΩ and 15MΩ aren’t specified above but are
available for configuration within the software. These trip settings of
10MΩ and 15MΩ are not recommended for use by Ampcontrol.
NOTE
The start input must be held closed for the duration of the test.
NOTE
The recommended trip setting values to be utilised for the insulation
test trip settings are to be less than 5MΩ. To obtain optimum results
the 2MΩ trip setting is recommended.
NOTE
If a CCM Load Module is installed on the outlet’s CCMD, the
maximum allowable trip setting on the Insulation Test is reduced,
depending on the type of load module installed. Refer to the CCM Load
Module Technical Datasheet for more details.