BEFORE THE ARCHITECT – E-PUBLICATIONS

Home Design Standards-Home Building Standards

Electrical Design Standards

Home Design Standards – Home Building Standards, 3Q10 Ed.      Page  388

Comment:  Sooner or later this prescript will lurch into codified distinctions as between linear and nonlinear electrical loads – distinctions which in commercial and industrial applications can be life- and property-protective.  But, not yet. 

The AG thinks that in virtually all applications in a residence, so long as a grounded neutral is pulled from the electrical distribution panel board (whereat it is securely fastened to its bar) separately for each and every electrical circuit wiring run, we’ll all get along safely for the time-being and to come.

 

5)     In a kitchen or bar, each of the following appliances shall be connected to an individual electrical circuit wiring at 120 volts, 20 amps (or manufacturer’s specification) with a 20 amp (or manufacturer’s specification) singleplex receptacle or hard-wired to a junction box

a)     microwave

b)     dishwasher

c)      refrigerator/freezer, or, if not a combined unit, then separately to a refrigerator and a freezer

 

6)     An electrical circuit wiring with 15 amp overcurrent protection shall have applied to it only 15 amp rated electrical devices

 

7)     An electrical circuit wiring with 20 amp overcurrent protection shall have applied to it only 20 amp rated electrical devices

 

Comment:  The National Electrical Code slices and dices this electrical circuit wiring vs. receptacle match-up sure enough to bunch the shorts of the most serious student.  The AG’s in no mood to quibble.

 

8)     Certain motor -driven or heater-driven electrical loads shall be on an individual electrical circuit wiring dedicated to that single electrical load and either hard-wired or singleplexed, e.g.

a)     dishwasher

b)     clothes washer

c)      built-in space heater

d)     clothes dryer

Check all specifications with your local building authority before construction. Permission to quote with attribution. © 2000-2010 by Before The Architect(s). All rights reserved. www.beforethearchitect.com  July 2010, 3rd Quarter Ed.

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