A couple of questions here.
First off, does Article 250.92(B) apply to the secondary side of a transformer supplying a panelboard? In other words, do the bonding requirements of Article 250.92(A) apply to the connections between a transformer and a panelboard where the transformer is a S.D.S?
Second question is in regards to 250.92(B)(3) "Threadless couplings, and connectors where made up tight for metal raceways and metal clad cables."
Do EMT compression and set-screw connectors and couplings qualify as "threadless"? How about seal-tight and FMC connectors? Would bonding bushings and jumpers be required on EMT, Seal-Tight, and FMC?
A strange question due to the fact that RMC would require bushings and jumpers if using standard back-to-back locknuts. Seems to me that using rigid (RMC) with standard locknuts would be better then EMT with a set-screw connector.
What is the correct interpretation for "Threadless"
First off, does Article 250.92(B) apply to the secondary side of a transformer supplying a panelboard? In other words, do the bonding requirements of Article 250.92(A) apply to the connections between a transformer and a panelboard where the transformer is a S.D.S?
Second question is in regards to 250.92(B)(3) "Threadless couplings, and connectors where made up tight for metal raceways and metal clad cables."
Do EMT compression and set-screw connectors and couplings qualify as "threadless"? How about seal-tight and FMC connectors? Would bonding bushings and jumpers be required on EMT, Seal-Tight, and FMC?
A strange question due to the fact that RMC would require bushings and jumpers if using standard back-to-back locknuts. Seems to me that using rigid (RMC) with standard locknuts would be better then EMT with a set-screw connector.
What is the correct interpretation for "Threadless"
