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NB/T47065.5-2018 selection-related questions

2021-12-22View Original

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This post was last edited by wx_Catherine_Mi on 2021-12-26 at 13:46. Recently, while studying NB/T47065.5-2018, I noticed that the height-to-diameter ratio of the devices is quite high; the dimensions of the rigid ring mounts specified are also large. However, the allowable vertical load and allowable bending moment seem to be relatively low. I would like to ask: 1. Does the value mentioned here refer to a single rigid ring mount? 2. The standard specifies W≤, but in the SW6 calculation it is Fb≤ that needs to be verified – which one should take precedence? I took another close look: 1. It’s not a single one ; 2. SW6 is incorrect; it should be W≤. SW6 V5.0 will have modifications.

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