According to Artical 220.14(I):
Receptacle outlets shall be calculated at not less thant 180 Va for each single or multiple receptacle on one yoke. A duplex receptacle is considered to be two receptacles on a common yoke. so the calculated load for a duplex receptacle is 180 VA. Where there are four or more receptacles such as a quad receptaclee, the calculation shall be not less than 90 VA per receptacles. For a quad receptacle the calculated load would be 4 times 90 VA or 360 VA.
Just to clarify one thing - the Article 220.14(I) in the above comment refers to NEC. Somehow, the commentator didn't mention it.
- MS
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"All my technical advices in this forum must be consulted with and approved by a local registered professional engineer before implementation" - Mohammed Samad (Linkedin Profile: http://www.linkedin.com/in/msamad)
1)where i can find the classification of panels like frame-1,frame-2,frrame3 ? on which bases this classification has done?
frame-1:single panel encloser with main braker (MCCB)and other branch breaker(MCB)
usually this encloser are used for load centres
frame-2:this is multi encloser in which first encloser consist main air circuit breaker with common bus bar and in second encloser with same common bus bar with branch breakers(MCCB) usually this encloser are used for MDB
frrame3: drawn out type encloser this type of encloser are used sewage treatment plants and industrial purpose