I'm gonna try to organize this best I can.
The equipment being supplied is a coffee bean roaster:
208/3∅
FLA ~8A
LARGEST MOTOR 2.3 HP @ 6.9 FLA
We have 120/240 Source feeding a Rotary Phase Converter:
MAX kVA 10
VOLTS 240
TYPE 2P
FLA 1∅ 48
LARGEST MOTOR 5HP
Which then is fed through a 6 kVA 240/208 Delta to Wye XFMR.
There is an abandoned water pipe in the basement being used as a grounding electrode for the service.
For the GEC from XFMR, since my ungrounded conductors are less than #2 I sized it as #8.
EGC load side just matching ungrounded.
Now what has got me confused is my EGC coming from panel to phase converter #10 based on #6 hot line side. But my supply side bonding jumper for the XFMR is to be a minimum of #8.
I'm using a magnetic contactor as disconnect for phase converter in 12x12 box, to an 8x8 box that supplies phase converter and manufactured leg control panel and fusible disconnect for XFMR.
My main question right now is, do I run EGC and SSBJ in tandem? Do I have to bond my SSBJ to every enclosure on the way to the XFMR like I'm doing with EGC? Or can I just weave it through the circuit directly to my XFMR?
The equipment being supplied is a coffee bean roaster:
208/3∅
FLA ~8A
LARGEST MOTOR 2.3 HP @ 6.9 FLA
We have 120/240 Source feeding a Rotary Phase Converter:
MAX kVA 10
VOLTS 240
TYPE 2P
FLA 1∅ 48
LARGEST MOTOR 5HP
Which then is fed through a 6 kVA 240/208 Delta to Wye XFMR.
There is an abandoned water pipe in the basement being used as a grounding electrode for the service.
For the GEC from XFMR, since my ungrounded conductors are less than #2 I sized it as #8.
EGC load side just matching ungrounded.
Now what has got me confused is my EGC coming from panel to phase converter #10 based on #6 hot line side. But my supply side bonding jumper for the XFMR is to be a minimum of #8.
I'm using a magnetic contactor as disconnect for phase converter in 12x12 box, to an 8x8 box that supplies phase converter and manufactured leg control panel and fusible disconnect for XFMR.
My main question right now is, do I run EGC and SSBJ in tandem? Do I have to bond my SSBJ to every enclosure on the way to the XFMR like I'm doing with EGC? Or can I just weave it through the circuit directly to my XFMR?