Over here in England I don't see these things, but you've helped me to understand the application, I will keep the flexiible connection in.
Many thanks.
As a fan manufacturer our motors are hard bolted to the fan casing and there is very little movement. Must we use a flexible connection such as Crouse Hinds ECGJH flexible couplings?
I can't find no clear statement on the limitations of hard conduit pipe and motors in the NEC.
Or is just...
