LEVEL 3 MODULE 1 Load Calculations-Branch and Feeder Circuits

NEC 220.14 - each outlet has an assigned load of ___

180VA

NEC Table 310.16 covers conductors rated up to ___

0-2000V

NEC 220.14(I) each receptacle is assigned a value of ___

180VA

NEC 220.54 the load for household electric dryers must be calculated at ____ or ____

5000VA or the nameplate rating of the dryer — whichever is larger

When space heating equipment utilizes electric resistance heating elements, protection for the resistance elements shall not exceed 60A.

NEC 424.22(B)

If breaker is not sufficient to hold the starting current of the motor, the rating is permitted to be increased but cannot exceed ___ or the branch circuit selection current, whichever is greater.

225% of the motor rated load current

Show window loads are ___

Always continuous

NEC 220.14 (G) provided two options for calculating branch circuit loads for show window lighting: either using the computed receptacle load of ___ (300mm) of show window.

180VA per receptacle or 200VA per linear foot

The actual sign load cannot exceed ___

80% of the branch circuit rating

NEC 220.14(E), outlets for heavy duty lamp holders are calculated at a minimum of ___ each

600VA

NEC table 220.56 lists demand factor for ___

Commercial kitchen equipment

NEC table 430.248 is used to determine

Full load current for single phase AC motors

NEC Table 430.250

Used to determine full load current for 3 phase AC motors

NEC table 310.16 used to determine

Branch circuit conductor size

table 430.52 used for

Motor short circuit and ground fault protection

NEC section 630.32(A) is for resistance welders it provides the rating or setting for the over current protection device shall not exceed ___ of the welder

300% of the primary current rating

The reciprocal of 125% (1.25) is 1/1.25 which is equivalent to ___ at the over current protection device

80% of the rating

NEC 210.11(C)(2) and 210.52(F) require the installation of at least one receptacle to ___

Supply laundry equipment

NEC section 210.14 (H)(1) each ___ is considered as one outlet of at least 180VA capacity. In locations where many appliances are likely to be used at one time, each 1' of multi outlet assembly is considered as one outlet of at least 180VA capacity

5' of the multi outlet assembly