For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. Determine the demand load, in VA, on the service-entrance conductors for the general-use receptacles and the multioutlet assembly.

220.14(H)(2) 220.14(I) Table 220.44 multioutlet assembly – 180 VA x 50 ft. = 9,000 VA Receptacles - 180 VA x 115 = 20,700 VA 29,700 VA Table 220.44 First 10,000…

For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. Determine the MINIMUM number of 20-ampere, 120-volt, branch-circuits required for the general-use receptacle outlets.

220.14(I) 180 VA x 115 receptacles = 20,700 VA (load) # of circuits = 20,700 VA = 20,700 VA = 8.6 = 9 circuits 120 volts x 20 amps 2,400…

For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. When sizing the service what required value, in VA, must be included for the show window lighting?

220.43(A) 230.42(A)(1) 50 ft. x 200 VA = 10,000 VA x 125% = 12,500 VA

For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. Determine the MINIMUM number of 20-ampere, 120-volt, branch-circuits required for the general lighting load of the store.

210.19(A)(1)(a) 210.11(A) # of circuits = 14,000 VA x 125% = 17,500 VA = 7.2 = 8 circuits 120 volts x 20 amps 2,400 VA *NOTE: Branch circuits need only…

For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. When calculating the service for the building, what required VA must be included for the general lighting load?

220.12 Table 220.12 230.42(A)(1) 100 ft. x 75 ft. = 7,500 sq. ft. x 3 VA = 22,250 VA 22,250 VA x 125% = 28,125 VA

For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. When calculating the service for the building, what required VA must be included for the general lighting load?

220.12 Table 220.12 100 ft. x 75 ft. = 7,500 sq. ft. x 1.9 VA = 13,680 VA  

For a retail store building with dimensions of 100 feet by 75 feet. • Service is 208Y/120-volts, 3-phase, 4-wire • Actual connected general lighting load of 14,000 VA • The store has 50 continuous feet of show window lighting. • The building is provided with 115 general use-receptacle outlets • Fifty (50) feet of multioutlet assembly where the cord-connected appliances are likely to be used simultaneously will be installed. • Forty (40) feet of track lighting will be installed for accent lighting. • The store will have two (2) 20-ampere, 120-volt exterior electric sign circuits. • Consider all overcurrent protection devices not to be listed for continuous use. When calculating the service for the building, what required VA must be included for the general lighting load?

220.12 Table 220.12 230.42(A)(1) 100 ft. x 75 ft. = 7,500 sq. ft. x 3 VA = 22,250 VA 22,250 VA x 125% = 28,125 VA

A ten (10) unit multifamily apartment building has the following total connected loads: • general lighting & receptacles – 25,200 VA • small appliances & laundry circuits – 45,000 VA • Fixed appliances – 150,500 VA • A/C- Heating equipment – 48,800 VA Apply the optional method of calculations for multi-family dwellings and determine the DEMAND load, in VA, on the ungrounded service-entrance conductors.

220.84(C) Table 220.84 25,200 VA general lighting 45,000 VA small appliances & laundry 150,500 VA fixed appliances 48,800 VA air conditioning & heating equipment 269,500 VA (connected load) x 43%…