This section states that"the locknut bushing and double locknut types of contacts shall not be depended on for grounding purposes, but bonding jumpers with proper fittings or other approved means of bonding shall be used"
This section also refers to 250.100 which then leads to 250.92B 2 thru 4
250.92b2 states connections utilizing threaded couplings or threaded hubs made up wrench tight will ensure bonding.
So if I have a rmc conduit that starts at a trough, typical double locknut, ends at a threaded hub in the C1D1 zone made up wrench tight, pull in an EGC into the box with the threaded hub, land the EGC, am I depending on the double lock nut to bond the pipe or is the conduit bonded via the threaded hub??
