Analysis of the operating environment of the rope hoist
1A single-layer winding wire rope gourd rope guides shall be provided, and its performance requirements should be: no other outside forces, wire rope still free from the rope guides the rope mouth discharged from the wire rope when the hook drops;when lifting, down load rating of wire rope on the vertical surface of the roll axis declination ± 3 ℃, normal work.
2Second, the the electric hoist room temperature value of insulation resistance of not less than 1.5MΩ.
3Third, the ground connection resistance value of not more than 0.1Ω
4Electric wire rope hoist the main circuit rated voltage three-phase AC 380v, rated frequency of 50Hz, the working environment temperature (-25 ~~ +40) ℃.
5 Wire rope electric hoist motor (except fan cover), protection grade of electrical installations and push button switches, etc., should be in line with the requirements of GB/T4942.1 and GB / T 4942.2 in IP54.
6Molten metal, used to lifting, fragile, dangerous and valuables electric hoist, since the lifting mechanism working level should be raised and the creation of the necessary security measures.