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E C CODES

Electricians. E C CODES. A Leader in Education. Today's presentation does not include voltage drops, power factor, increase use of electricity, and is intended ONLY to be used as a study-aide and not to design or to be used to validate an installation. E C CODES.

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E C CODES

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  1. Electricians ECCODES A Leader in Education

  2. Today's presentation does not include voltage drops, power factor, increase use of electricity, and is intended ONLY to be used as a study-aide and not to design or to be used to validate an installation. ECCODES A Leader in Education

  3. Electricians ECCODES A Leader in Education Study-aide Always consult with the local AHJ in your area for an interpretation.

  4. ECCODES A Leader in Education Study-aide Questions

  5. Question: ECCODES A J. C. Penny (store) is to have 125- 20-ampere, 125-volt multiple general use receptacles installed , in various locations throughout its store. What is the DEMAND receptacle load for this installation? A Leader in Education • a. 22,500 va. • b. 12.500 va. • c. 6,250 va. • d. 16,250 va.

  6. ECCODES If you have selected the wrong answer. Don’t give-up try again A Leader in Education Back to the question

  7. Article 220 ECCODES You have answered the question correctly. Receptacles installed, in other than dwellings, must be calculated at 180.va per receptacle on the same yoke as provided in 220.14(I) and permitted to apply the demand in 220.44. [See 220.14(I) and exception for four or more receptacles used for a specific equipment.] A Leader in Education EXAMPLE: 180va. X 125 = 22,500va. The first 10kw@100% remained @50%. Next

  8. Question: ECCODES The feeder demand load for an 8 kW load, increased by 20% is kVA. A Leader in Education a. 8 b. 9.6 c. 6.4 d. 10

  9. Article 220 ECCODES You have answered the question correctly. EXAMPLE: 8,000 watt range is the demand load in column C of table 220.55 A Leader in Education Therefore, 8,000 watts x .2 [increased 20%] = 1600watts added to 8,000 watts. Next

  10. Question: ECCODES What size THHN conductor is required to terminate to a 70-ampere circuit breaker or fuse? A Leader in Education a. # 8 b # 6. c. # 4 d. # 2

  11. Article 110/310 ECCODES You have answered the question correctly. In the question there is no mention of the temperature ratings of the equipment, such as at the breaker, therefore, looking at 110.14(C) we must use the 60ͦ column in table 310.15(B)(16). A Leader in Education Also there is no mention if the load is a continuous load, therefore, it would be considered as non-continuous and calculated @ 100%. Next

  12. To purchase a study-aide complete the form and submit ECCODES A Leader in Education https://eccodes.com/Electrical_Study-aides.html

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