For the distribution cabinet sheet metal shell used outdoors, a series of special protective measures need to be taken to ensure that the electrical equipment inside it can operate safely and reliably.
First of all, in terms of material selection, materials with good corrosion resistance should be selected. For example, sheet metal shells made of stainless steel can effectively resist the erosion of rain, moisture and various chemicals in the outdoor environment. Or use steel that has undergone special anti-corrosion treatment to enhance its corrosion resistance.
Waterproofing is one of the key protective measures. The sheet metal shell of the distribution cabinet should have good sealing, and all gaps and interfaces should be sealed. Rubber sealing strips or sealants can be used to seal to prevent rainwater from seeping in. At the same time, the hinges and door locks between the cabinet door and the cabinet body should also have waterproof functions to ensure that no water enters the cabinet in bad weather.
In order to prevent dust and debris from entering, dust filters can be installed at the vents. These filters can not only ensure air circulation, but also prevent dust, insects, etc. from entering the distribution cabinet. In addition, for some special environments, such as areas with more sand and dust, you can consider using finer filters or increasing the number of filter layers.
Outdoor power distribution cabinets also need to consider lightning protection measures. Lightning rods or lightning arresters can be installed on the outer shell to lead lightning into the earth and protect the internal electrical equipment from damage by lightning. At the same time, the grounding system of the power distribution cabinet must also be good to ensure that lightning can be discharged safely.
In terms of sun protection, a special sunscreen coating can be applied to the surface of the sheet metal shell to reduce the damage of the sun's ultraviolet rays to the cabinet and prevent the shell from aging and deformation. You can also consider installing a sunshade for the distribution cabinet or placing it in a sheltered position to reduce the impact of direct sunlight.
In order to improve the impact resistance of the distribution cabinet, the shell should have sufficient strength and thickness. Reinforcement ribs can be added at key locations to enhance the structural stability of the cabinet. During the installation process, ensure that the distribution cabinet is firmly fixed and can withstand a certain degree of external force impact, such as strong winds, collisions, etc.
Finally, it is also very important to regularly inspect and maintain the outdoor distribution cabinet. Clean the dust, debris and accumulated water on the surface of the shell in time, check whether the seals are intact, and deal with problems in time to ensure that the distribution cabinet is always in a good state of protection.
