1. Equipment and equipment used by electric gourds shall comply with the current standards of national standards and should have equipment inscriptions.

2. The packaging is complete, and the sealing parts should be well sealed.

3. The quantity of the check -up check specifications should meet the design requirements, and the attachment spare parts should be complete.

4. The technical documents of the product should be complete, and the appearance inspection should be unable to deform and rust.

5. The hanging cable of the soft cable and the installation of the free suspension line shall meet the requirements.

6. The mechanical strength of the terminal fixed device and the tightening device should meet the requirements.

7. When the length of the sliding wiring and the cable is less than or equal to 25m, the adjustment of the adjustment device should not be less than 0.2m.

8. The relaxation of the sliding line or a cable should be selected according to the temperature of the material specifications and the installation link. The relaxation deviation of the sliding line should not be greater than 20mm.

9. The cable header of the suspension device should be reliable with the soft cable. The distance between the cable should not be greater than 5m.

10. Except for the weak electricity system on the crane, the copper core wires or cables with a rated voltage with a rated voltage of not less than 500V are used. The cross -sectional area of multiple cables must not be less than 1.5 square meters.