Newnes Radio and RF Engineering Pocket Book, 3rd Edition

217

Adequate working space must be provided around the equipment

racks. Much equipment is now wall-mounted but tall, floor-standing

cabinets must be firmly bolted down to prevent toppling when units

are partially withdrawn for servicing and cables need to be routed

safely. Overhead cable trays are generally considered the most satis-

factory method but, to avoid interaction, it is recommended that cables

for the various functions be segregated to reduce cross-talk and inter-

ference. Where cabling enters a cabinet at floor level, mounting the

cabinet on a hollow plinth and running the cables through the plinth

avoids damage to the cables and persons tripping over them.

For low voltage installations (see classifications below) the IEE

wiring regulations