ECN Forum Forums General Topics of the Trade General Discussion Area Sizing supplemental OCPD for HID lighting

Any good references or rules of thumbs for sizing supplemental OCPD for HID lighting?

Back in the day, in-line fuses at the poles. As to 'rules', it was what it was. I will look to see if there are any code issues.

We had fuse blocks at the pole tops to fuse each fixture, or to fuse 2 of a 4 group setup. 1000 watt HPS/MH in strip malls & shop ctrs. It avoided wiping out the circuit by a bad ballast.