After the installation of the basket after each test to be what norms or standards
A: In this process the hydrogen balloon and the basket are the resultant force is 0N
Hydrogen ball and the basket are rising at a constant speed, in equilibrium, by the balance conditions, they are the resultant force F = 0N
166 clearly stipulates: the construction of lifting machinery installed, the use of units should be organized rental, installation, supervision and other relevant units for acceptance, or commissioned with the corresponding qualification test Inspection agency for acceptance Construction crane experience after passing the acceptance can be put into use, without acceptance or acceptance of unqualified shall not be used Want to answer to help you Welcome to exchange