ron said:
e57,
Unless this was for a branch circuit, a listed transfer switch does not seem to be required.
I didn't say
"listed..." I said "for the purpose".... As a truncated way of saying what is italics below. Just any DPDT such as a double pole toggle would not be appropriate. And even a DPDT knife switch would be up to the AHJ. (Seeing that there also seems to be another generator involved that is hooked up somehow to this?)
702.6 Transfer Equipment.
Transfer equipment shall be suitable for the intended use and designed and installed so as to prevent the inadvertent interconnection of normal and alternate sources of supply in any operation of the transfer equipment. Transfer equipment and electric power production systems installed to permit operation in parallel with the normal source shall meet the requirements of Article 705.
Transfer equipment, located on the load side of branch circuit protection, shall be permitted to contain supplementary overcurrent protection having an interrupting rating sufficient for the available fault current that the generator can deliver. The supplementary overcurrent protection devices shall be part of a listed transfer equipment.
Transfer equipment shall be required for all standby systems subject to the provisions of this article and for which an electric-utility supply is either the normal or standby source.
Found the
switch he's talking about. "Manually operated switch suitable for use in accordance with article 702 of the NEC, ANSI/NFPA 70" Which is prohably fine for the "other generator" it is connected to..... But the 120 generator would also need a seperate transfer equipment. (To avoid interconnection) And then there is this powering of 120/240 with only 120....
(1600W) Thats only enough for a HAIRDRYER.... Even then, any 3-wire circuit neutral would be subject to over-load if connected. IMO totally inappropriate for this use connected to premis wiring, reguardless of marty not knowing what to do with his grounds and grounded conductors.....
(What kind of double sided 5-20R/P extention cord can be made to do this?) I think I was trying to say marty is in over-his head.....