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Chapter 8: Connecting to Other Equipment
8.1 Overview
When cabling
•
Neatly secure all cables/conduits in position, and adequately support all wiring to prevent
−
excessive strain on wires and on terminal connections
−
loosening of terminal connections
−
damage of conductor insulation
−
escaped strands of flexible conductor making accidental contact with conductive parts
•
Where cables pass through any part of a metal panel or cover, ensure a cable gland or bush-
ing is fitted in the hole.
•
The cables should fit snugly in the glands without gaps that may allow entry of dust
and animals.
•
Insulate all neutral conductors from ground.
•
Where possible, do not run AC cables parallel to other nearby cables.
•
Maintain adequate segregation between AC cables, DC cables, and low signal level alarm/
control wiring, especially where cables enter the rack.
•
Cross sensitive cables (e.g., control cables) at right angles to avoid inductive coupling. This
includes lightning-protection cables that may be on the outside of an adjacent wall.
•
Ensure your cable routing inside the rack does not interfere with access to components and
allows maximum ventilation.
•
Allow a small amount of extra cable (in small loops) for
future servicing.
Cable access is available on the edge of the side panels as
indicated in the following figure. You can purchase optional
cable entry kits, specific access kits, and accessory plates to
match your specific needs. If you order the generic U-shaped
cable ducts, the following is the routing option. Snap in the
cord grips.
Note that the slot at the back of the right-hand vertical
mounting rail allows the cables to fit through the grommet
hole, as shown.
Slot
Cord
grip
Figure 48 - Cable Slot and
Cord Grip