### 6.4.3 Precautions for Bundling up Cables

l Before cables are bundled, mark labels and stick the labels to cables wherever appropriate.

l Cables should be neatly and properly bundled in the cabinet without twisting or bending, as shown in the following figure.

Figure6-6 Binding Cables (1)

l Cables of different types (such as power cords, signal cables, and ground cables) should be separated in cabling and bundling. Mixed bundling is not allowed. When they are close to each other, it is recommended to adopt crossover cabling. In the case of parallel cabling, maintain a minimum distance of 30 mm (1.18 in.) between power cords and signal cables.

l The cable management brackets and cabling troughs inside and outside the cabinet should be smooth without sharp corners.

l The metal hole traversed by cables should have a smooth and fully rounding surface or an insulated lining.

l Use cable ties to bundle up cables properly. Please do not connect two or more cable ties to bundle up cables.

l After bundling up cables with cable ties, cut off the remaining part. The cut should be smooth and trim, without sharp corners, as shown in the following figure.

Figure6-7 Binding Cables (2)

l When cables need to be bent, please bundle them up but do not tie them where the cables will be bent. Otherwise, considerable stress may be generated in cables, breaking cable cores, as shown in the following figure.

Figure6-8 Binding Cables (3)

l Cables not to be assembled or remaining parts of cables should be folded and placed in a proper position of the cabinet or cable trough. The proper position refers to a position that does not affect device running or damage the switch or cable.

l Do not bind power cords to the guide rails of moving parts.

l The power cords connecting moving parts such as door grounding wires should be reserved with some access after being assembled to avoid suffering tension or stress. After the moving part is installed, the remaining cable part should not touch heat sources, sharp corners, or sharp edges. If heat sources cannot be avoided, high-temperature cables should be used. If heat sources cannot be avoided, high-temperature cables should be used.

l When screw threads are used to fasten cable terminals, the bolt or screw must be tightly fastened, and anti-loosening measures should be taken, as shown in the following figure.

Figure6-9 Cable Fastening

Table6-2 Cable Fastening Components

No. | Components
1 | Flat washer
2 | Nut
3 | Spring washer
4 | Flat washer

l Hard power cords should be fastened in the terminal connection area to prevent stress on terminal connection and cable.

l Do not use self-tapping screws to fasten terminals.

l power cords of the same type and in the same cabling direction should be bundled up into cable bunches, with cables in cable bunches clean and straight.

l Bundle up cables by using cable ties based on the following table.

Cable Bunch Diameter | Distance between Every Binding Point
10 mm (0.39 in.) | 80 mm to 150 mm (3.15 in. to 5.91 in.)
10 mm to 30 mm (0.39 in. to 1.18 in.) | 150 mm to 200 mm (5.91 in. to 7.87 in.)
30 mm (1.18 in.) | 200 to 300

l No knot is allowed in cabling or bundling.

l For wiring terminal blocks (such as circuit breakers) with cord end terminals, the metal part of the cord end terminal should not be exposed outside the terminal block when assembled.