S slc410 Electrician Location Madison wi Occupation Electrician Sep 19, 2023 #1 Is the 1.25 multiplier ever used in sizing wires? I always thought that multiplier was used only for sizing overloads or circuit breakers with continuous loads.
Is the 1.25 multiplier ever used in sizing wires? I always thought that multiplier was used only for sizing overloads or circuit breakers with continuous loads.
infinity Moderator Staff member Location New Jersey Occupation Journeyman Electrician (retired) Sep 19, 2023 #2 Are you asking does the conductor ever need to be sized at 125% of the ampere rating of the OCPD?
S slc410 Electrician Location Madison wi Occupation Electrician Sep 19, 2023 #3 infinity said: Are you asking does the conductor ever need to be sized at 125% of the ampere rating of the OCPD? Click to expand... Yes. If your sizing the wire like say for a motor load do you have to factor in the 1.25? Or wire size for any load for that matter?
infinity said: Are you asking does the conductor ever need to be sized at 125% of the ampere rating of the OCPD? Click to expand... Yes. If your sizing the wire like say for a motor load do you have to factor in the 1.25? Or wire size for any load for that matter?
don_resqcapt19 Moderator Staff member Location Illinois Occupation retired electrician Sep 21, 2023 #4 See 210.19(A) and 215.2