Salt Spray Chamber for Smart Wearables

The salt spray test chamber must be reliably grounded during operation. The following is a detailed explanation of the reasons and specific requirements for grounding:

Reasons for grounding

Prevent the danger of electric leakage: During the operation of the salt spray test chamber, its internal heating system, spray system and other components will produce a large amount of heat and corrosive gases. If a leakage occurs in the equipment, these currents may be conducted to the human body through the equipment shell, resulting in electrocution. By grounding the equipment, the leakage current can be safely directed to ground, effectively preventing the risk of electric shock and protecting the operator.

Ensure stable operation of the equipment: grounding can provide a stable potential reference point for the equipment, reduce the impact of external electromagnetic interference on the operation of the equipment to ensure that the control system and electrical components of the salt spray test chamber can work properly, thus ensuring the accuracy and reliability of the test.

In line with safety standards and norms: grounding is one of the basic safety requirements for the installation and use of electrical equipment, in line with relevant electrical safety standards and norms. When using the salt spray test chamber in a laboratory or industrial environment, it is necessary to ensure that it is well grounded to meet the requirements of safety inspection and certification.

Specific requirements for grounding

Grounding wire specification: The grounding wire of the salt spray tester should be made of sufficiently thick copper-core wire, generally requiring a cross-sectional area of not less than 1.5mm² to ensure that it can withstand the possible leakage current.

Grounding resistance: the grounding resistance should be less than 4Ω to ensure good grounding. A grounding resistance tester can be used to test the grounding system to ensure that it meets the requirements.

Grounding method: usually use a special grounding wire will salt spray test box grounding terminal and grounding pole reliable connection. The grounding pole should be buried in moist soil to reduce the grounding resistance. In indoor environments, the grounding wire can also be connected to the building's public grounding system, but to ensure that the grounding system meets safety standards.

Ground marking: Ground wires should be clearly marked to distinguish them from other wires for easy identification and maintenance. At the same time, the grounding terminal of the equipment should also be clearly marked to remind the operator of the importance of grounding.

In short, the grounding of the salt spray test chamber is an important measure to ensure the safe operation of equipment and personal safety of the operator, must be strictly in accordance with the requirements of the grounding operation, and regularly check the integrity of the grounding system.