Power System Engineer
- Las Vegas, Nevada, USA
- Licensed Electrical Engineer, Licensed Electrical Contractor, Certified Master Electrician
Selective Coordination should be clarified to include coordination between phase and ground elements. Too often, TCC's are evaluated separately on a phase only or ground only basis. Also, whenever selective coordination is required between two OCPD's, any other OCPD in parallel with the lower of the two OCPD's (which may compromise coordination with the upstream OCPD), should be required to be selectively coordinated as well. Thoughts?