Ruijie RG-NBS5100 Series Switches Hardware Installation and Reference Guide
Appendix D Cabling Recommendations
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Leave a certain length of the cable connecting moving parts, such as the ground wire of the cabinet door, to avoid
stress on the cable; when moving parts are in place, ensure the excess cable length shall not contact heat sources,
sharp corners or edges. If heat sources are unavoidable, use high-temperature cables instead.
When using screws to fasten cable lugs, the bolts or nuts shall be tightened and prevented from loosening, as shown
in Figure D-4.
Figure D-4 Fastening Cable Lugs
Note
Flat washer
Nut
Spring washer
Flat washer
When using a stiff cable, fix it near the cable lug to avoid stress on the lug and cable.
Do not use self-tapping screws to fasten terminals.
Bundle cables of the same type and running in the same direction into groups. Keep cables clean and straight.
Cables shall be tied according to the following table.
Diameter of Cable Bundle (mm)
Space between Bundles (mm)
10
80 to 150
10 to 30
150 to 200
30
200 to 300
Do not tie knots for cables or cable bundles.
The metal parts of the cold-pressed terminal blocks, such as air circuit breakers, shall not be exposed outside of the
blocks.
