What level of adhesion should the spray coating of rural lighting ready boards in Africa meet according to IEC? Prevent detachment and paint peeling?

From Manufacturing to Intelligent Manufacturing: The Path of Technological Innovation for Electric Smart Meter Companies

What sealing process should be used at the joint of the lighting ready board body for the dusty scenes in rural Africa? Install sealing strips or apply sealant?

Self inspection manual for abnormal data of smart meters: 6 key indicators that 90% of users are unaware of