APPENDIX 2: Electrical Design

Transcription

1 APPENDIX 2: Electrical Design

2 ELECTRICAL CALCULATIONS The updated lighting loads are calculated for power and circuits are sized below: All new lighting circuits should be 2-#10 THW, 1-#12G 3/4 conduit Panel LP1E: Lighting Panel 1 East Lighting Load = KVA Total Lighting Load = 1.25 * 12.8 = 16 KVA Total Current (I) = 16 KVA/(3^.5 *.120 KV) = 77 A I = 77 A < 100 A circuit breaker from MDP and 100 A rated panel, OK Panel LP3E: Lighting Panel 3 East Lighting Load = KVA Total Lighting Load = 1.25 * = KVA Total Current (I) = KVA/(3^.5 *.120 KV) = A I = A < 100 A circuit breaker from MDP and 100 A rated panel, OK Panel LP4E: Lighting Panel 4 East Conclusions: Lighting Load = KVA Total Lighting Load = 1.25 * = KVA Total Current (I) = KVA/(3^.5 *.120 KV) = A I = A > 100 A circuit breaker from MDP and 100 A rated panel, NOT OK The panel will need to be resized to a 150 A panel, or some circuits will need to be moved to a different lighting panel. These 3 original panels had A combined. The revised panels have A total for a decrease in total amps of 10.63A. The total KVA was decreased by 2.21 KVA. However, this decrease is not enough to be able to size the MDP breaker down from current size of 1000A. Therefore the new design will save on electric power.

3 LPIE SCCR RATING: 100 A MILO SECTION # OF # LOCATION: 147 STORAGE NITE LTG CKT 121, NITE LTG CORR 102 LTG (128, 129) LTG (127) LTG (STAIR 126) ? LTG (135) LTG (130, 148, 149, 147, 146, 145, 144, 143) LTG (132, 134, 135, 136, 137) LTG (138, 139, 140, 141, 142, 143) LTG LTG (EXTERIOR) LOBBY 101, SWITCH LOBBY 101,SWITCH 2 LOBBY 101, SWITCH LOBBY 101, SWITCH 4 LOBBY 101, SWITCH LOBBY 101, SWITCH 6 LOBBY 101, SWITCH LOBBY 101, SWITCH 8 LOBBY 101, SWITCH LOBBY 101, SWITCH 10 COURTYARD, SWITCH COURTYARD, SWITCH 2? ?? ?? ? SPACE? ? SPACE SPACE? ? SPACE kvolts AMPS CONNECTED kvolts AMPS CONNECTED kvolt AMPS CONNECTED: AO 4.38 BO 4.34 CO 4.16 TOTAL 12.88

4 LP3E SCCR RATING: 100 A MILO SECTION # OF # LOCATION: 241 STORAGE LTG (237, 236) LTG (266 CORR'S) LTG (240) LTG (240) NITE LTG LTG (238, 235, 234, 241) LTG (230) LTG (BELOE CLG 230) LTG (BELOW CKT 7) CORRIDOR MEZZANINE MEZZANINE ROOF LIGHTS LTG (201) NITE LTG COMPUTER LAB, SWITCH 1 COMPUTER LAB, SWITCH COMPUTER LAB, SWITCH 3 COMPUTER LAB, SWITCH COMPUTER LAB, SWITCH 5 COMPUTER LAB, SWITCH ? ?? ?? ? SPACE? ? SPACE SPACE? ? SPACE kvolts AMPS CONNECTED kvolts AMPS CONNECTED kvolt AMPS CONNECTED: AO 4.92 BO 1.99 CO 3.14 TOTAL 10.05

5 LP4E SCCR RATING: 100 A MILO SECTION # OF # LOCATION: 269 STORAGE LTG (257) LTG (256, 251) LTG (259) LTG (255, 256, 257) LTG LTG LTG (265, 269, 270, 270A, 270B, 271, 271A) LTG (CORR) LTG (250) LTG (249) LTG (249) LTG (242, 243) ELEV. PIT LTG LTG (EXTERIOR FIXTURES) LECTURE HALL LTG (249) LTG. CONSULT FIXTURE LECTURE HALL LECTURE HALL LTG. 244, 245, 246 LECTURE HALL DANCE ROOM, SWITCH 1 CORRIDOR DANCE ROOM, SWITCH 2 ROOM DANCE ROOM, SWITCH 3 DANCE ROOM, SWITCH DANCE ROOM, SWITCH 5? ?? ? kvolts AMPS CONNECTED kvolts AMPS CONNECTED kvolt AMPS CONNECTED: AO 9.68 BO 5.91 CO 8.31 TOTAL 23.90