What misunderstandings should be avoided when installing a wall-mounted network cabinet?

1. Ignoring the load-bearing capacity of the wall
When installing a wall-mounted network cabinet, the load-bearing limit of the wall type (such as lightweight brick wall, gypsum board wall) is not verified, and heavy equipment is directly installed. In this case, the cabinet falls and damages the equipment, and even causes a safety accident.
Correct approach -
Concrete wall: load-bearing must be ≥50kg/m², expansion bolt depth ≥70mm, single-point force ≥30kg.
Lightweight wall: add a triangular bracket or a through-wall steel plate to disperse the load to the load-bearing beam.

2. Improper installation height
The cabinet position is too low (<1.5m) and is easy to be collided. If it is too high (>2m), it will be difficult to maintain. The installation height cannot cause frequent damage to the equipment, and the maintenance efficiency is reduced by more than 40%.
Correct approach -
Height: The bottom is 1.6-1.8m from the ground, taking into account both anti-collision and bending-free operation.

3. Improper installation of expansion bolts
The hole depth of the expansion bolts is insufficient, the number of bolts is small or the gasket is not used, and the operation is based on experience. This will cause the cabinet to tilt and the equipment to vibrate and be damaged.
Correct approach -
Drilling standard: hole diameter ≥8mm, depth ≥70mm, at least 4 M8 expansion bolts per cabinet.
Reinforcement skills: bolts are equipped with spring washers + flat washers, and the torque wrench is tightened to 45N·m.

4. Ignoring heat dissipation
When installing a wall-mounted network cabinet, the air duct is blocked by installing it against the wall, or no heat dissipation space is reserved. This will cause the temperature inside the cabinet to rise by 10–15℃ and the life of the equipment to be shortened by 50%.
Correct approach -
Heat dissipation spacing: the back of the cabinet is ≥10cm away from the wall, and an exhaust fan is installed on the top (opening rate ≥70%).
Heat source isolation: stay away from air-conditioning outlets and radiators to avoid mixing of cold and hot airflows.

5. Chaotic cable management
The cables of the wall-mounted network cabinet are not straightened and unmarked, and are directly inserted into the cabinet. This will cause signal interference and loose connectors during subsequent use, and increase the fault location time by 70%.
Correct approach -
Layered wiring: Power cables and data cables are routed in separate slots, with a crossing angle of ≥30°.
Labeling system: Each cable is marked with the source/purpose (such as "SW-Port1→AP203"), and a high-temperature resistant label is used.
Sealing treatment: The inlet and outlet holes are sealed with fireproof mud to prevent rats and moisture.