Further Conduction Of The Line Shield At The Interruption Point - Siemens SIROTEC Planning Manual

6.2.4

Further conduction of the line shield at the interruption point

Intermediate plug
If shielded lines must be interrupted, the shield must be continued via the
respective plug housing. Only plugs suitable for this (HF-tight version with good,
durable contacting of the shields) should be used.
Fig. 6-4
Terminals
Normally only suitable plugs and plug housings may be used with the interruption
of the line shielding for the continuation of the shielding. If an interruption of the
shielding and a twisting of the lines is absolutely necessary in exceptional cases,
the line must be screwed extensively to a shield bus before and after the plug
(terminal).
The following picture shows the principal structure of such an arrangement.
Fig. 6-5
© Siemens AG, 2004. All rights reserved
EMC Installation Guideline – Planning Guide (EMV) – 03.2004 Edition
Shield treatment in the plug housing
Shielding buses
Shield treatment with terminal strips
Wiring and Shielding
Shield folded back by 180°
and connected to connector
casing
Rubber sleeve
Connecting bar
Terminals
Shield bond
6-41