hey moderators,I am happy to finally be here as I have been a guest/lurker for too long. I have an easy question you have been through before. We are installing a number of mini-power zone,single phase, 25 kva load centers. Fed from the busway. The contention is certain individuals feel it is unnessary to exothermic bond the transfomers sec. to the buiding steel. They say the equipment ground is sufficient to connect to as it runs back to the bus equipment ground terminal. I am asking for validation as code references are considered not related to the occupancy. Your opinion would be helpful as I try to convince the supervisor it is nessasary. Thank you for your input.