How to check whether the cables have been laid out properly:
Labels are correctly attached to cables.
Cables are laid out in an untangled and orderly fashion.
Cables that pass the cable ladder are secured on the beam of the cable ladder.
Cable troughs are used for cables laid outside a bay, and these cables are in the cable troughs.
The bending radius of optical fibers is greater than or equal to 50 mm.
Power cables and ground cables are bent smoothly.
Power cables and ground cables are connected correctly and securely.
Ground cables of a bay are connected correctly and reliably.
The diameter of the power cables and ground cables meets the power distribution requirements.
The external power cables and ground cables are bound with adequate slack. The cables are separately deployed with at least 150-mm space in between. Also, the cables are separately deployed from the signal cables with at least 30-mm in between.
Cables are bound neatly in a rectangular shape (circular when the cables are single-cored).
Cables are bent at a radius larger than 60 mm. Cable ties are not installed where a cable bends.
Optical fibers are laid out without using force or having unnatural bends.
OT terminals of the power cables and ground cables are welded or crimped firmly.
Naked cables and OT terminal handles of the power cables and ground cables should be wrapped by protection tubes or insulation tapes. There should be no bare copper wires on OT terminals. Shock absorption sheets and washers should be installed properly.
Spring washers and flat washers are installed properly. All cabinets and enclosures are grounded with metal or partially metal shells.
All fibers are properly bound. The space between the cable ties is even, and the remaining parts of the cable ties are cut off neatly. All the cable ties face the same direction for a neat appearance.
Ground cables are olive or yellow.
Power cables and ground cables use the entire copper core and no joint.
Labels are correctly attached on the power cables and ground cables. These labels are tidily located and face the same direction for users' convenient check.
