dm9289
Industrial Maintenance Electrician
- Location
- Pennsylvania
- Occupation
- Industrial process repair/ maintenance Electrician
I have a clearance question. The large MCC in the back will be replaced. The new one was proposed to start where MCC is painted. The transformer is 480 to240v single phase 120KVA transformer. There is open space opposite side of transformer.There is a large box on transformer 3 rd from left on the rear of it. Would you need a 36” working space from transformer to new MCC side? Or 36” from back of large connection box. I’m having trouble relating this to 110.26 conditions or 450.21. The temp rise is 80c and it is a type S cannot find vent requirements on name plate.
Thank you for your input.
Thank you for your input.