bure961
Senior Member
- Location
- Farmingham, MA
I have come across transformer installations that has been in stalled in the mid 80's where there is not a connection to building steel ,they use bonding bushings on sealtight connectors that attach to a bonding lug on the transformer case. I do not see any egc on either primery or secondary to the transformer.
How can one determine if this is safe design or was legal in the 80's ? This design is for a 480 volt to a 208y 120 volt 75 kva . I have limit contact to transformer wiring and this is whyI ask these questions.
How can one determine if this is safe design or was legal in the 80's ? This design is for a 480 volt to a 208y 120 volt 75 kva . I have limit contact to transformer wiring and this is whyI ask these questions.