256HC Mast SectionWhat is the use of tower crane grounding, what requirements should be met?
tower crane grounding, not only as a temporary electrical engineering site for the TN -- s connection to zero protection system repeatedly, but also as the tower crane itself lightning grounding. In order to fully reflect the double significance of the tower crane grounding, the tower crane grounding should meet the following requirements:
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(1) the power frequency grounding resistance of the grounding device should not be more than 10; (2) the grounding device should have two electrical connections with the tower crane track.
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