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ID61/62 Series Panel - Installation, Commissioning & Configuration Manual
3.3 EMC Considerations
Following the above instructions and by using suitable
cables EMC problems will be avoided. In particularly
difficult EMC environments, or where non-preferred
cabling is used, it is possible to fit additional ferrite
suppressors (sleeves) to cables entering the control
panel.
3.3.1 Screen Termination
Use the following method to terminate the cable screens:
Use a metal gland with slots (A) that allow the drain
wire or screen (B) to be clamped between flat washers
(C). Use a steel locking washer (D) between the brass
washers and the internal surface of the back box (E).
This will provide the best EMC termination. Suitable
glands are the CTX range available from CMP UK
Ltd. The part chosen should fit the 20mm knockouts.
3.3.2 Ferrite Sleeves (Optional)
Ferrite sleeves are not normally required with the panel.
In difficult EMC environments, or where non-preferred
cables are used, optional ferrite sleeves should be fitted
to both the loop and sounder wiring. The ferrite sleeves
(A) are to be fitted over the conductor(s) of each cable -
and NOT over the screen of the cable, which should pass
outside of the sleeve. They should be fitted as close as
possible to the entry point of the cable, i.e. as near as
possible to the screen termination (B) to the metal cable
gland (C). The sleeve should be held in place using a
cable tie (D).
The ferrite sleeves are available for purchase from
NOTIFIER's distributors (PN: 538-143).
3.4 MICC Cables
MICC cables must be fitted with metal cable glands (use
Type A2 glands). Use a steel washer (A) to ensure good
earthing continuity and correct termination of the gland.
In particular, the mains cable requires that the cable gland
(B) is fitted with an earth tail kit (C). The earth tail kit
must be connected, using an insulated wire (D), to the
panel safety earth connection (E) at the mains termination
block (F). The bare mains wiring from the MICC cable
must be suitably-insulated (G) and terminated in
accordance with the appropriate local wiring regulations.
21
997-457-000-8, Issue 8
January 2010
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