IPC402x-UM-2209-1-2.x.x (en)
Ensto Protrol AB
Phone: +46 31 45 82 00
Alfagatan 3
internet: www.protrol.se
431 49 Mölndal, SWEDEN
4
e-mail: [email protected]
1 Safety Information
Only certified electricians are allowed to perform installation work.
National and local security guidelines must be followed.
Always short circuit the secondary conductors of the current transformers during maintenance or
testing.
If the secondary
circuit of the CT’s are opened or if their
earthing point is missing or removed
while the primary side is energized, high voltages can be generated. In worst case these voltages
can be deadly and damage isolation material.
Energization of the CT’s primary
side is not
permitted as long as the secondary side is open or not earthed.
Dangerous voltages can be present on the terminals, also when power is removed from
the device.
Violation against the security guidelines can lead to fatalities, personal injury or considerable
damage to equipment.
Avoid removing the cover of the IPC402x devices. If it is removed, ensure that all electronic
components are protected against electrostatic discharge, ESD, by proper earthing of both
the device and the personnel performing maintenance.
The device should be connected to protective earth at terminal X4.2.
