The inspection of lightning protection devices is generally divided into first inspection and regular inspection according to the conditions of the inspected building.
The so-called first inspection is a building that has not been inspected by an institution with lightning protection inspection qualification or although it has been inspected by an institution with lightning protection inspection qualification, the building has exceeded the prescribed inspection period.
The so-called conventional inspection is a building that has been inspected by an organization with lightning protection inspection qualification and does not exceed the specified inspection period of the building.
The lightning protection device is tested once a year, and the lightning protection device in dangerous places such as inflammable and explosive is tested once every six months. All administrative, business, and enterprise units shall actively cooperate with the staff of the lightning protection and disaster reduction agencies to do a good job in the lightning protection and disaster reduction safety of their departments. The installed lightning protection devices shall actively accept the annual inspection and inspection of the lightning protection and disaster reduction agencies, and all units of the lightning protection devices that fail the test shall be rectified in time.
Differential Housing
Usually the driven wheel is supported by bearings on the heart shaft, so that it can rotate at any angular speed, and the driving wheel is rigidly connected with two half shafts respectively, and there is a differential between the two half shafts
Differential Housing,Differential Housing Parts,Differential Housing Assembly,Rear Differential Housing
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