Causes of electrical system failure

Causes of electrical system failure

Because the crane in the normal operation, the resistance group in the resistance box is put into operation most of the time, which generates a lot of heat, so that the temperature of the resistance group is higher. In a high temperature environment, both the resistor itself and the resistor connection terminal are susceptible to deterioration. At the same time, the switching frequency of various AC contactors in the working process of bridge cranes is particularly high,

08

2019

/

10

Western Development "the belt and road initiative" Strongly Implement Unlimited Business Opportunities in Construction Machinery Industry

Western Development "the belt and road initiative" Strongly Implement Unlimited Business Opportunities in Construction Machinery Industry

With the in-depth promotion of the "Western Development" and the strong implementation of the "Belt and Road", many benefits such as infrastructure construction, energy and resource development, and logistics channels are coming, and the construction machinery industry in western my country is about to enter the "fast lane" of development ". As an important gateway city to enter the west, Chongqing is also a bridgehead for construction machinery companies to advance westward. It is working hard to build a Hailing International Construction Machinery Trading Center to fill the gap that there is no large-scale construction machinery professional trading center in the western region. Railway infrastructure power full economic development, transportation must go first, "western development" strategy continues to bring to the railway infrastructure industry.

11

2018

/

11

The Development and Reform Commission approved 8 new infrastructure projects with a total investment of more than 90 billion.

The Development and Reform Commission approved 8 new infrastructure projects with a total investment of more than 90 billion.

On October 15, the national development and Reform Commission announced eight newly approved infrastructure projects, including five highway projects, two railway projects and one waterway improvement project, with a total investment of 95.316 billion billion yuan. Since October, the National Development and Reform Commission has approved a total investment of more than 365.3 billion yuan in infrastructure projects.

06

2015

/

10

General safety operation requirements for crane operators

General safety operation requirements for crane operators

First, the relevant personnel should carefully change shifts, carefully check the reliability of hooks, wire ropes, brakes, and safety protection devices, and report any abnormalities in time.

26

2014

/

06

Safety operation essentials of electric hoist

Safety operation essentials of electric hoist

Improper lifting and operation of the electric hoist. The electric hoist will cause the hanging object to swing and cause an accident. Electric hoist lifting, when the wire rope or chain tension should stop, electric hoist according to the direction of the hook shaking again to find the hook, at the same time, lifting workers should check whether the lifting is firmly hung; Electric hoist lifting not too hard, when the lifting object out of the obstacle can speed up the lifting speed; Electric hoist lifting objects are not easy to be high, generally more than 0.5m of the highest safety passage is better. When the electric hoist is running. If conditions permit, it is best to lift about 0.5m from the ground, and the crane will lift the objects in the electric hoist.

20

2014

/

05

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