What is the difference between the class a and b
Crane installation and maintenance of transformation needs to do the following procedure: license installation and maintenance Construction personnel operation qualification certificate Installation and maintenance construction project contract to fill in the notice, the local special survey, after the approval to the construction, the construction is completed, please check to check and accept.
Basis: the national quality inspection pot [2003] 251. Crane installation modification maintenance license certificate is special equipment quality supervision department, is a qualification certificate, and the business license is mainly daily business scope, has the certificate also have to add in business projects to undertake related business. It can't be run on a scale.
On the basis of forensics, the basic requirements of the enterprise are different, whether it is the registered capital, the enterprise technical personnel, the equipment conditions, the three levels of the ABC requirement; Tell from ability level of qualification, can install the scope of the requirements, A level technical parameters of unlimited, class B rated lifting weight is not more than 80 t, span no more than 34.5 m, C rated lifting weight is not more than 20 t, span no more than 22.5 m.
