Where the code allows for installing a bonding conductor in mettalic conduit it states that the conduit must be bonded on both ends, question is if this is installed in mettalic conduit , attached to a metal building , does this reduce the requirement for bonding of the conduit?
Welcome to our Forum. Others here can give you a more detailed answer I'm sure, but I'll give it a try. If you're talking about the Grounding Electrode Conductor (GEC) it must be bonded to the conduit so that it can work properly in the event of a Fault. If it is not bonded and there is a sudden rise in current flow on the conductor fields may be set up that will oppose the current flow and effectively "choke" it.
Yes, that is what we are talking about if I understand it correctly. The conductor from the service that is connected to the water pipe runs through a metal conduit. this must be bonded at both ends as described in the code section mentioned. Over at the IAEI forum there was a recent thread with questions regarding types of clamps used and there are some pictures there too. take a look. http://www.iaei.com/ubb/Forum1/HTML/000019.html