NEC 220.53 Appliance Load

[kwired]

According to the NEC, these are all just items of utilization equipment. Come on, pencil sharpener an “appliance”? I really think not! :happyno:

The NEC has two reasons to have an interest in “appliances.” One has to do with some of the highest loads that show up in dwelling units, not all of which are commonly run at the same time. That is why the 75% demand factor is available. The other has to do with the myriad of things that get plugged into receptacle outlets in the kitchen. That is why there are rules about spacing and breaker sizes for small appliance branch circuits. If it doesn’t fit into one of those two areas of interest, all the NEC cares about is that we include it in our accounting for loads.

Art 100 defintion of appliance(again):

Appliance. Utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one or more functions such as clothes washing, air conditioning, food mixing, deep frying, and so forth.

How does this definition exclude the things you mention? That defintion is not all that specific as to what it includes, yet anyting otherwise described in other articles in ch 4-6 may be disqualified as an appliance.

If you read through chapters 4-6 what sections other than 410, 422 or 430 would you look in for anything that may apply to the items mentioned?

Demand factors in art 220 apply to specific appliances or type of appliances, most of what is mentioned probably doesn't fit into any demand factor allowances.