on a constn site, i have a temp. power 480v feeder (about 50' away) which is routed to the building (which is under constn, its going to be a central energy plant). the feeder is routed with 3hots and 1gnd to the primary of a transformer (still temp. power). at the secondary of the transformer the ground is bonded to the neutral and a ground rod is installed; and there is a panelboard on the secondary of the transformer.
the new building is under construction, early stages. there is lots of exposed rebar for future concrete flooring to be poured in a few weeks/months, also vertical rebar for concrete columns.
QUESTION: shouldn't the rebar/metal system be bonded to the ground on the secondary of the transformer (for temp. power) for safety during construction? i'm thinking if a lightning strikes a rebar sticking up in the air -- there will be a difference in potential between the rebar system and the temp. power system.
any thoughts/advice?
the new building is under construction, early stages. there is lots of exposed rebar for future concrete flooring to be poured in a few weeks/months, also vertical rebar for concrete columns.
QUESTION: shouldn't the rebar/metal system be bonded to the ground on the secondary of the transformer (for temp. power) for safety during construction? i'm thinking if a lightning strikes a rebar sticking up in the air -- there will be a difference in potential between the rebar system and the temp. power system.
any thoughts/advice?
