wire size / distance "graph"
Hi, Of course the cord color varies--but this is a nice quick graphic way to select a good gauge. It appears that the #10 wire is wrongly labeled.
Forum Discussion
pianotuna wrote:
Hi,
Of course the cord color varies--but this is a nice quick graphic way to select a good gauge. It appears that the #10 wire is wrongly labeled.
I would like to know what is "wrong" ? Is it that a 10 gauge cord should handle 30A at 50' ? If so, the 20A limit may because the image of the 10 gauge cord is drawn with either a NEMA 5-15 or 5-20 plug. For 30A it would have to be a NEMA 5-30 (fairly odd) or a NEMA TT-30 (common in the RV world).
What I don't like is the on the 12 gauge cord it appears they drew a "locking" plug (NEMA L5-20). I don't like the fact that NEMA allows 5-15 plugs and receptacle to carry 20A loads. NEMA 5-20 receptacle accept NEMA 5-15 plugs. If the load is 20A, IMHO, the plug should be a NEMA 5-20.
