There are many types of explosion -proof electric gourds, including maritime assistance, airport construction, pipeline laying, large transportation, industrial control, airport construction, plastic machinery, automotive manufacturing, etc. Explosion -proof electric gourds have high requirements for the safety factor. In order to use the safety, in the following three cases, explosion -proof electric gourds need to be protected.
In the dust environment, there are special protection requirements for explosion -proof electric gourds. The main points of protection are as follows:
(1) The protection level of electric motors and major electrical appliances on the crane should be improved accordingly. Usually, the protection of the electric motor and electrical appliances of the gourd -type crane is IP44. According to the size of the dust, its sealing performance should be enhanced accordingly. It is dustproof capacity) grade to improve to IP54 or LP64 accordingly;
(2) The closed driver's room should be used to protect the driver's personal health.
2. In high temperature environments, there are special requirements for explosion -proof electric gourds. The main points of protection are as follows:
(1) Temperature control devices such as thermal resistance should be buried on the motor winding and case. When the temperature exceeds a certain boundary, the power off -power stop should be protected or added a strong cold measure on the motor (usually a dedicated electric fan is added to the motor to add a special electric fan fan to the motor. .
(2) The driver's room should be a driver's room with a closed fan or an air conditioner installed.
3. In the construction site, there are special requirements for explosion -proof electric gourds. The main points of protection are as follows:
For the construction site, it should be flat to achieve the "four links and one level", and the construction conditions for construction water, electricity, and gas will meet the use conditions. Facilities and fire channels are smooth; the construction venue for installation equipment must be reliable and isolated from other construction systems; there are storage sites such as components, tools, and construction materials. Measures and inspection of qualified components shall be properly stored in a timely manner if they cannot be installed for the time being; the civil buildings related to the installation of electric gourds shall be completed and the lightning protection is complete.
