The Journeyman Electrician Exam Study Guide by Jordan Alexander & Media Group Scientia

Author:Jordan, Alexander & Media Group, Scientia
Language: eng
Format: epub
Publisher: Scientia Media Group
Published: 2021-08-10T00:00:00+00:00

Load Factor

Load factor is the average load divided by the maximum load during a given period. It may be annual, monthly, or even a single day, in kWh. It is always a value less than 1 because maximum demand will always be more than the average demand given. It is used to determine the cost per unit generated. Generally, the higher the load factor, the cheaper it will be.

Kitchen Equipment

To accommodate kitchen equipment, the branch circuits and overcurrent protection must be sized to the nameplate ratings found on the devices. When sizing a feeder and service conductor, the demand factors are applied from Table 220.56. Feeder and service demand loads are not allowed to be less than the sum of the two largest kitchen equipment loads.

For example, consider a household electric range with a rating of 8.75 kW. It must have at least a 40-amp rating branch circuit, as dictated on table 210.19 (A)(3).

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