154HC Mast Section The importance of tower crane grounding, and what requirements should the grounding meet?
Tower crane grounding can not only be used as a repeated grounding of TN-S neutral protection system of temporary power engineering on site, but also as lightning protection grounding of tower crane itself. In order to fully reflect the importance of tower crane grounding, tower crane grounding shall meet the following requirements:
154HC Mast Section：
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1. The power frequency grounding resistance of the grounding device shall not be greater than 10 Ω.
2. The grounding device shall have two electrical connections with the tower crane track.
3. The two ends of the tower crane track shall be connected by circular metal.
4. The two ends of the tower crane rail connection shall be connected with metal wire to ensure electrical connection.
5. The tower crane track shall be connected with protective neutral line PE for electrical connection.
154HC Mast Section：
http://www.towercranesupply.com/product/154hc-mast-section-liebherr-tower-crane
