L48A1 Mast SectionAnalysis on the development of construction elevator leasing industry, operation and management knowledge
There is a bad scene in the leasing industry of construction elevator. The purchase of construction elevator does not require morality, good skills, and low price; the improvement of management does not require the improvement of skills, but only the lowest cost, which is considered to be a waste of money; the improvement of brand does not require the cheap market, and your price is lower than yours; the realization of machinery leasing does not require the strengthening of equipment management The long-term return on investment, only strive for the short-term maximization of profits and so on. Of course, these phenomena are not mainstream, but we must pay attention to them. If we let this weather develop freely, it will bring disaster to all construction elevator leasing industries, and it will be chronic self harm to all industries.
L48A1 Mast Section：
http://www.towercranesupply.com/product/l48a1-mast-section-for-tower-crane-masts
The foundation of the construction lift shall be made in strict accordance with the manufacturer's construction drawings. The embedded bolts of the foundation shall be equipped with the material inspection qualification report. Before the installation of the construction lift, the hidden project acceptance record and the concrete foundation inspection qualification report shall be provided. The weight of the construction lift must be prefabricated concrete blocks, and the use of bricks is prohibited. The concrete blocks with damaged lifting points and cracked concrete shall not be used.
Every day when the construction elevator driver goes to and from work, he must review each high-strength connecting bolt (especially the basic part), steel structure weld, each connecting pin (including cotter pin), each moving pulley, steel wire rope, lifting brake device, safety device and other important parts (pieces). If any hidden danger is found, he shall give a speech or eliminate it in time. It is strictly prohibited to use it with a fault. There must be daily inspection records in the operation record book.
L48A1 Mast Section：
http://www.towercranesupply.com/product/l48a1-mast-section-for-tower-crane-masts
The construction elevator shall not work close to the overhead transmission line. It is necessary to work beside the line. The full distance between the lifting hook of the construction elevator and the water insurance of the overhead line must be more than 6 meters. If the safety interval cannot be guaranteed, the safety protection barrier must be set up or the power cut must be cut for construction. Within the swing range of the boom of the construction elevator, there shall be no external high-voltage line. The construction elevator shall be prevented from external high-voltage line Install and use below.
In the thunderstorm scene, when there is a charged cloud over the high-rise building, the lightning rod and the top of the high-rise building are induced with a large number of charges. Because the lightning rod tip is pointed, and the electrostatic induction, the conductor tip always gathers the most charges. In this way, the lightning rod gathers most of the charges. The lightning rod and these charged clouds form a capacitor, because it is relatively pointed, that is, the capacitor The opposite area of the two plates of the arrester is very small, so the capacitance is very small, that is to say, the charge it can hold is very small. And it gathers most of the charge, so when there is more charge on the cloud, the air between the lightning rod and the cloud layer is easily broken down and becomes a conductor. In this way, the path between the charged cloud layer and the lightning rod is created, and the lightning rod is grounded. The lightning rod may The charge on the cloud leads to the earth, which makes the fault high-rise building dangerous and ensures its safety.
L48A1 Mast Section：
http://www.towercranesupply.com/product/l48a1-mast-section-for-tower-crane-masts
