N93-572-88 Issue 12 NH Page 12 of 52 © Protec Fire Detection plc 2020
5.0 Insulation Testing of Cabling Prior to Connection
Before connecting any external cables to any field device or the 6100, tests should be carried out using a 500V
DC insulation tester ( ‘ Megger
® ‘
). If tests are performed the insulation readings between each cable core, and
each cable core and earth must be greater than 10MW.
The 6100 or associated devices must not be connected to any cables when high voltage
insulation tests are being performed on the cabling. The cabling must be completely
discharged prior to connection to the 6100. Equipment connected to the cabling during
insulation tests will be damaged by the high voltages used, invalidating any warranty.
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