Guidelines for Electrical Installation
D301087 0308 - BL20 CANopen7-12
Note
Should it not be possible to ground the shield on both sides due to
switching arrangements or device specific reasons, then it is possi-
ble to route the second cable shield side to the local reference po-
tential via a capacitor (short connection distances). If necessary, a
varistor or resistor can be connected parallel to the capacitor, to
prevent disruptive discharges when interference pulses occur.
A further possibility is a double-shielded cable (galvanically separat-
ed), whereby the innermost shield is connected on one side and the
outermost shield is connected on both sides.
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