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Pole Mount XFRM Bonding

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John08

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Location
South Carolina
Occupation
Electrician
Do you know how to size the bonding jumper to use between the tank ground, pole ground, and neutral? Pole mount transformer is single phase. 13.8kV to 120/240. Mostly curious about neutral to pole ground bonding as this is required at transformer secondary. Secondary conductors are just a #12 hot and neutral for 120v. NEC 250.102 makes me think you would use a #8 minimum for bonding but that seems kind of large since my hot and neutral are smaller at #12.
 
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