H3C S7502 Ethernet Switch Installation Manual

Installation Manual
H3C S7502 Ethernet Switch Chapter 4 Hardware Installation
4-17
z For the cable terminals fixed with screw thread, the screws or nuts should be
fastened and prevented from loosing. See the following figure;
Flat
washer
Flat
washer
Spring
washer
Nut
Flat
washer
Flat
washer
Spring
washer
Nut
Figure 4-20 Cable fixing example
z Fix the terminal of harder power cables to free the terminal and the cable from
stress;
z No tapping screw can be used to fasten the cabling terminals;
z The power cables of the same type and in the same direction should be bound
together and kept clean and straight;
Follow the parameters defined in the following table for binding cables with ties.
Table 4-4 Tie-binding parameters
Cable bundle diameter (mm) Space between bundles (mm)
10 80~150
10~30 150~200
30 200~300
z No cable or bundle can tie a knot;
z The metal parts of crimping cold-pressed terminal blocks (such as air switch)
cannot stretch beyond the blocks.