Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 Electrical System After re-designing the lighting system for the children’s computer, circulation and storytelling areas, the electrical system had to be redesigned as well. These are the new panel board schedules. All lighting fixtures were placed on the same schedules based on area and floor level: panelboard “L1” for the interior first floor and exterior, and panelboard “L2” for the interior second floor. (N) PANELBOARD "L1" VOLTAGE: PHASE: WIRE: 208/120 3 4 LOAD LIGHTS - 101-102 LIGHTS - 103-110 SPARE EXTERIOR LIGHTS LTG CTRL PNL – LCP1 SPARE SPARE SPARE SPARE SPACE SPACE SPACE SPACE SPACE SPACE SPACE SPACE SPACE A 1.2 A, 3P A B C 1.0 0.0 0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 BKR 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P ckt 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 abc ckt 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 BKR 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P A 0.8 B C 0.9 1.0 0.7 0.5 1.0 0.0 0.0 0.0 :MAIN C/B :BUSSING :MOUNTING LOAD LIGHTS - 113 LIGHTS - 113 LIGHTS - 113 EXTERIOR LIGHTS EXTERIOR LIGHTS EXTERIOR LIGHTS - CAR MOTION SPARE SPARE SPARE Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 0.0 SPACE SPACE SPACE 0.0 1.2 KVA PHASE A: KVA PHASE B: KVA PHASE C: LIGHTING TOTAL KVA: RECEPTACLE KVA: TOTAL: 0.0 0.0 2.0 2.7 3.4 2.0 Connected 8.1 0 8.1 20A-1P 20A-1P 20A-1P 37 39 41 38 40 42 20A-1P 20A-1P 20A-1P 1.5 1.4 2.0 28.11 :TOTAL LOAD AMPERES (10.125 X 1000)/(1.732 X 208) = 28.11 D.F 1.25 1.0 Demand KVA 10.125 0 10.125 (N) PANELBOARD "L2" VOLTAGE: PHASE: WIRE: 208/120 3 4 LOAD LIGHTS - 206-209 LIGHTS - 209 LIGHTS - 212 LIGHTS - 212 LIGHTS - 214-217 LIGHTS - 214-217 LIGHTS - 213-213A LIGHTS - controls LIGHTS - 228-229,231 LIGHTS - 219,221,235-236 225A, 3P 225A SURFACE A 0.9 B C 0.4 1.1 1.0 1.1 1.1 0.7 1.1 0.9 0.8 BKR 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P ckt 1 3 5 7 9 11 13 15 17 19 abc ckt 2 4 6 8 10 12 14 16 18 20 BKR 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P A 0.8 B C 0.7 0.7 1.0 0.8 0.7 0.6 0.6 1.2 1.0 :MAIN C/B :BUSSING :MOUNTING LOAD LIGHTS - 211,226-227 LIGHTS - 211,226-227 LIGHTS - 211,226-227 LIGHTS - 227 LIGHTS - 227 LIGHTS - 227 LIGHTS - 222 LIGHTS - 222 LIGHTS - 223,225,230 LIGHTS - 100,200 Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 LIGHTS - 202,204-205,237-238 LIGHTS - 233 LIGHTS - 232 LIGHTS - 201,234 LIGHTS - 233 SPARE SPARE SPARE SPARE SPARE SPARE 0.8 0.8 0.8 0.4 0.2 0.0 0.0 0.0 0.0 0.0 4.2 KVA PHASE A: KVA PHASE B: KVA PHASE C: TOTAL LIGHTING KVA: RECEPTACLE KVA: TOTAL KVA: 8.2 7.5 7.9 Connected 23.6 0 23.6 3.8 0.0 4.1 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 21 23 25 27 29 31 33 35 37 39 41 22 24 26 28 30 32 34 36 38 40 42 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 1.0 0.6 0.6 0.6 0.6 0.0 0.0 0.0 0.0 0.0 4.0 3.7 0.0 3.8 LTG CTRL PNL – LCP2 DAYLTG. DIM.CTRL DAYLTG. DIM.CTRL DAYLTG. DIM.CTRL DAYLTG. ON/OFF DIM.CTRL SPARE SPARE SPARE SPARE SPARE SPARE 78.42 :TOTAL LOAD AMPERES (28.25 X 1000)/(1.732 X 208) = 78.42 D.F. Demand KVA 1.25 1.0 28.25 0 28.25 (N) PANELBOARD R1" VOLTAGE: PHASE: WIRE: LOAD REC 101 REC 101 208/120 3 4 225A, 3P 225A SURFACE A 0.8 B 0.8 C BKR 20A-1P 20A-1P ckt 1 3 abc ckt 2 4 BKR 20A-1P 20A-1P A 0.7 B 1.8 C :MAIN C/B :BUSSING :MOUNTING LOAD EF-4 ELEVATOR CONTROLLER Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 REC 101 REC 101 REC 102,103 TELECOM EQUIPMENT REC 100,104 REC 101 TELECOM EQUIPMENT REC 106 MOTORIZED SCREEN REC 109 SPARE SPARE SPARE SPARE SPARE SPARE SPARE SPARE SPARE 0.8 0.8 0.8 1.8 1.0 0.8 1.8 1.8 1.0 0.4 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.4 KVA PHASE A: KVA PHASE B: KVA PHASE C: TOTAL LIGHTING KVA: RECEPTACLE KVA: REMAINING KVA: TOTAL KVA: 6.6 6.6 7.1 Connected 0 11.6 8.7 20.3 3.4 0.0 4.8 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 0.3 0.3 1.2 1.8 1.0 0.2 DUCT SMOKE DETECTORS 0.2 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.2 3.2 FIRE DOOR - ELEVATOR FIRE DOOR - LOBBY GARAGE DOOR SLIDING DOOR WATER FOUNTAIN 0.0 2.3 FA CONTROL PANEL FA POWER SUPPLY SPARE SPARE SPARE SPARE SPARE SPARE SPARE SPARE SPARE SPARE SPARE 56.35 :TOTAL LOAD AMPERES (20.3 X 1000)/(1.732 X 208) = 56.35 D.F. 1.25 1.0 1.0 Demand KVA 0 11.6 8.7 20.3 Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 (E) PANELBOARD R2" VOLTAGE: PHASE: WIRE: LOAD REC 200, 206 WATER COOLER HAND DRYER 205 HAND DRYER 204 REC 204, 205, 237, 238 REC 234, 235 REC 235 REFRIGERATOR REC 230 REC 231, 228 COPIER REC 232, 233 REC 233 REC 233 REC 233 REC 233 REC 210 REC 213 REC 213, 214 REC 214, 215 REC 215 208/120 3 4 225A, 3P 225A SURFACE A 0.8 B C 1.8 1.8 1.8 0.8 0.8 0.8 1.0 1.0 1.0 1.0 0.6 0.8 0.8 1.2 0.6 0.8 0.8 0.8 0.8 6.6 7.0 0.4 6.6 BKR 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P ckt 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 abc ckt 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 BKR 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P A 0.8 B C 0.8 0.8 1.0 0.8 0.8 0.8 0.8 1.0 1.0 0.8 0.8 1.0 0.8 0.8 0.8 1.0 1.2 1.0 1.2 6.4 6.2 0.0 5.4 :MAIN C/B :BUSSING :MOUNTING LOAD REC 215 REC 215, 219, 221 REC 222 HAND DRYER 221 REC 222 REC 222 REC 211 VENDING VENDING REC 223 REC 223 REC 229 REC 225 REC 225 REC 225 REC 225 REC 225 REC 226 REC 226 REC 227 SPARE Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 KVA PHASE A: KVA PHASE B: KVA PHASE C: TOTAL LIGHTING KVA: RECEPTACLE KVA: REMAINING KVA: TOTAL KVA: 13.0 13.2 12.0 Connected 0 24.6 13.6 38.2 106.04 :TOTAL LOAD AMPERES (38.2X 1000)/(1.732 X 208) = 106.04 9.4 15.2 D.F. 1.25 1.0 1.0 Demand KVA 0 24.6 13.6 38.2 (E) PANELBOARD “R2" VOLTAGE: PHASE: WIRE: 208/120 3 4 LOAD REC 211 MLO 225A SURFACE A 0.6 EXPRESS CHECK THEFT CHECK DETECTION PROJECTOR MOTOR SCREEN REC ROOF REC 202 SPARE SPARE SPACE SPACE SPACE SPACE SPACE B C 0.6 0.7 1.0 1.0 0.8 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 BKR 20A-1P ckt 43 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P abc ckt 44 BKR 20A-1P 45 46 20A-1P 47 49 51 53 55 57 59 61 63 65 67 69 48 50 52 54 56 58 60 62 64 66 68 70 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P A 0.2 B C 0.4 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 :MAIN C/B :BUSSING :MOUNTING LOAD DUCT DETECTOR PLMBNG SENSOR 204,205,237,238 MICROWAVE SPARE SPARE SPARE SPARE SPARE SPARE SPACE SPACE SPACE SPACE SPACE Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 SPACE SPACE SPACE SPACE SPACE SPACE SPACE 0.0 0.0 0.0 0.0 0.0 0.0 2.6 KVA PHASE A: KVA PHASE B: KVA PHASE C: LIGHTING KVA: RECEPTACLE KVA: REMAINING KVA: Ckts 43-84 TOTAL KVA: 1.6 2.8 2.0 2.5 Connected 0 2.4 4.9 7.3 0.0 1.5 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 71 73 75 77 79 81 83 72 74 76 78 80 82 84 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 20A-1P 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.4 0.0 1.0 SPACE SPACE SPACE SPACE SPACE SPACE SPACE 106.04 :TOTAL LOAD AMPERES (38.2X 1000)/(1.732 X 208) = 106.04 D.F. 1.25 1.0 1.0 Demand KVA 0 2.4 4.9 7.3 TOTAL LTG kVA: TOTAL RECEPTACLE kVA: REMAINING kVA: TOTAL Kva: 0 27 18.5 45.5 D.F. 1.25 1.0 1.0 Demand kVA 0 27 18.5 45.5 The first floor receptacle/control panel is remaining basically the same since there were no changes added to the first floor of the library. Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 Incoming service 3 UTILITY TRANSFORMER 2 PROVIDE SHUNT TRIP CIRCUIT BREAKER FOR ELEVATOR SWITCHBOARD 1000 AMPS, 120/208 VOLTS, 3PHASE, 4 WIRE M 225 AMPS 3POLE 1 GROUNDING ROD 225 AMPS 3POLE 1 PNL “R1” 225 AMPS 225 AMPS 3POLE 1 PNL “R2” 225 AMPS 1 225 AMPS 3POLE 400 AMPS 3POLE 1 PNL “L1” 225 AMPS PNL “L2” 225 AMPS PNL “M1” 400 AMPS 220 AMPS 3POLE Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 The Lighting Load and Receptacle Loads were calculated using NEC Article 220. These are considered continuous loads and therefore the computed load for the feeder must be based on 125% of the continuous load. For the feeder taps to each panel: Panel L1 (lighting) Actual Load (kVA) General Lighting Load Rcptcl. First 10 kVA: Total Load: 7.10 0.00 8.10 Final Total Load (kVA): D.F. New Load (kVA) add 20% spares Final Load (kVA) 1.25 1.00 8.88 0.00 8.88 1.78 0.00 1.78 10.65 0.00 9.72 9.72 There is a difference of 2.3 kVA in this panelboard. The change in VA is negligible and neither the breaker nor panelboard need to be resized. conclusion Panel L2 (lighting) Actual Load (kVA) General Lighting Load Rcptcl. First 10 kVA: Total Load: 23.60 0.00 23.60 Final Total Load (kVA): conclusion D.F. New Load (kVA) add 20% spares Final Load (kVA) 1.25 1.00 29.50 0.00 29.50 0.20 0.20 35.10 0.00 35.40 35.40 There is a difference of 1.5 kVA in this panelboard. The change in VA is neglible and neither the breaker nor panelboard need to be resized. Panel R1 Other Loads Rcptcl. First 10 kVA: Total Load: (receptacles) Actual Load (kVA) 8.70 11.60 23.60 D.F. New Load (kVA) add 20% spares Final Load (kVA) 1.00 1.00 8.70 11.60 20.30 0.20 0.20 10.44 13.92 24.36 Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 Final Total Load (kVA): Panel R2 24.36 (receptacles) Actual Load (kVA) Other Loads Rcptcl. First 10 kVA: Total Load: 13.60 11.60 25.20 Final Total Load (kVA): 30.24 D.F. New Load (kVA) add 20% spares Final Load (kVA) 1.00 1.00 13.60 11.60 25.20 0.20 0.20 16.32 13.92 30.24 For the feeder taps to each panel: “L1” General Lighting Load: 17,244 sqft at 1.2 VA/sqft = 20692.8 VA Receptacle Load: 17,244 sqft at 0.5 VA/sqft = 8622.0 VA Net computed load using demand factors from Table 12.2: 29314.8 VA at 100% = 29314.8 VA Since it is a 208/120 V service: Minimum Ampacity = 29314.8/(1.732 x 208) = 81.37 A “L2” General Lighting Load: 15,984 sqft at 1.2 VA/sqft = 19180.8 VA Receptacle Load: 15,984 sqft at 0.5 VA/sqft = 7992.0 VA Net computed load using demand factors from Table 12.2: 27172.8.0 VA at 100% = 27172.8.0 VA Since it is a 208/120 V service: Minimum Ampacity = 27172.8.0 /(1.732 x 208) = 75.43 A For the main feeder: Total computed load for six panels = 8.1 + 23.6 + 20.3 + 38.2 + 7.3 + 103.3 = 200.8 kVA Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 The Rosegarden Library, with its location in San Jose, California has its power supplied from PG&E. The connection is located in the exterior of north side of the building and the transformer is located in the Electrical Equipment room on the ground level. Refer to riser diagram above. Tag 1 2 3 Quantity 1 3 2 New Conduit Schedule Conduit (IN) Use 2 1/2 (4)#4/0+(1)#4G 5 4 Remarks PG&E to install conductors PG&E to install conductors Voltage drop calculations To determine voltage drops, table 11.5 in S. David Hughes, Electrical Systems in Buildings was used. Using 800 VA per common receptacle unit. Use 120V Panelboards X = length in ft. System Type The Rosegarden Library has a radial circuit arrangement. This building is composed of a main switchboard that branches out to the five control panels in the building. This system is the simplest of the circuit arrangements since there is only one primary feeder and one transformer through which the associated secondary bus is served. In order to leave it as simple as possible in order to avoid confusion with the maintenance and electricians, this system will be left the same. Utilization Voltage The Utilization voltage of this building is 208/120 V and it is used on both levels. Transformer Configuration Rosegarden Library uses Nema 3R, UON Transformer in exterior of building with a copper clad grounding rod. This is one of the best and most expensive kinds of system available. It is located on the northeast side of the building. This transformer is provided Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 by PG&E, and they don’t give us the rating. When you ask for a certain rating, they usually give you less. So it will probably be according to one of the electrical engineers working on the project, and since it is a relatively small building a 300 kVA transformer (830 Amps) will probably be provided. The secondary voltage is 120/208V, 3 phase. The library does not have much control over this, since it is owned by the city of San Jose. It is a public building. Emergency Power System The emergency power system will not have automatic transfer switches since there is no emergency generator. There is a UPS in the telecom room though, which the library is providing for battery backup for the server. Emergency light fixtures have emergency ballasts incorporated, so there would be enough light in case of an emergency, for about 90 min. for most of them. These are all operated mainly in 120V. In addition, a shunt trip circuit breaker is provided for the elevator. Over Current Protective Devices There is an over current protection device which is a 1000 A, 3 phase circuit breaker. There is also a transformer assembly with two 40 VA transformers with separate secondaries in the relay panels. Transformers include internal over current protection with automatic reset and metal oxide varistor protection against power line spikes. 120 or 277 VAC as required, 60 Hz +/- 10%. Location of switchgears, panelboards and motor centers The main switchboard is located in the Electrical Equipment room (room 108 on the first floor). there are no switchboards in Rosegarden since they hold loads between 2000 – 5000 amps, and are more expensive. Switchboards are used in this building since we only need front access to it and since it is not that big, we just need it to hold 800-2000 (but could go up to 5000) amps. The mechanical equipment table will remain the same since no mechanical gear was changed. Mechanical Equipment Table Mech Eq ACU 1 ACU 2 ACU 3 Type Natural gas HTG Electrical CLG Package Unit Natural gas HTG Electrical CLG Package Unit Natural gas HTG Service Library central area Voltage 208 Phase 3 Hz 60 Full Load Amps 66 Library North Exposures 208 3 60 73 Library South 208 3 60 86 Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 ACU 4 Electrical CLG Package Unit Natural gas HTG Electrical CLG Package Unit Exposures Library 1 st floor community room P P 208 3 60 23 Typical lighting system All the lighting systems in the building operate on 208/120V. The most common light fixtures in this library are the fluorescent light fixtures, either linear florescent or compact fluorescent. These lamps were chosen for their low power consumption and easy maintenance and repair. All the ballasts in the light fixtures have a high power factor, CBM certified and bear the UL label. The electronic ballasts need to be high power factor, high frequency and suitable for lamps specified. The library has a Smartwire relay lighting control system as well as DMX controls, in order to allow for color changing in the LED’s. Fixture Code A C Lamps - total Input Watts 1-42 1-5.5 Volts Description Mounting 120 120 5” Diameter, compact fluorescent downlight. 12” color LED Recessed Surface T (2x40,2x36) 232 1-70 1-34 1-100 1-70 120 Direct/Indirect fluorescent pendant fixture. Pendant 120 120 120 120 Metal Halide wall mounted fixture. Compact fluorescent wallwasher Metal Halide Wall mounted fixture. Metal Halide Bollard Surface recessed Surface Ballard AA W AD AJ The new lighting design loads have been placed on a 208v panelboard which would be fed from the panelboard. Since the loads have been reduced on the switchboard, it is going to be left as is. On the four spaces analyzed, there were not enough new fluorescent lighting to fill up a decent sized panelboard. The panel is going to be left unsized due to the fact that that only a portion of the total load can be applied to the panelboard without a full building analysis. Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 Mechanical Equipment Table Mech Eq ACU 1 ACU 2 ACU 3 ACU 4 EF1 EF2 EF3 EF4 GD1 EV1 Type Natural gas HTG Electrical CLG Package Unit Natural gas HTG Electrical CLG Package Unit Natural gas HTG Electrical CLG Package Unit Natural gas HTG Electrical CLG Package Unit Centrifugal exhauster Centrifugal exhauster Centrifugal exhauster Centrifugal exhauster Service Library central area Voltage Phase 208 3 Hz 60 Power factor 0.9 Full Load Amps 66 Library North Exposures 208 3 60 0.9 73 Library South Exposures 208 3 60 0.9 86 208 3 60 0.9 23 120 1 60 .9 5.8 120 1 60 .9 5.8 120 1 60 .9 9.8 120 1 60 .9 5.8 120 1 60 .9 9.8 208 1 60 .9 Library 1 st floor community room Men/women restrooms Men/women restrooms Men/women restrooms & public/staff Men/women restrooms & public/staff Parking Garage Elevator equip room P P Miory Kanashiro Lighting/Electrical Rosegarden Branch Library, San Jose, CA Spring 2004 Utility The local utility used to distribute power to the building is Pacific Gas & Electric. PG&E will provide all the electricity for Rosegarden. Controls The controls used in this building were mostly DMX and iplayer 2.0 for the colored cove lights. This control along with the light system manager software, should provide enough and easy information in order for the library caretakers to program different views or environments in the children’s area of the library. These controls will allow for color changing through time. There will be various programmed “scenes” which will run through the day creating vibrant colors which will energize the space.