0% found this document useful (0 votes)
175 views1 page

EARCON Builders: Recommended Size of Transformer

The document provides a schedule of loads for two electrical panels. The lighting panel has a main circuit breaker of 40A and is mounted recessed with a feeder cable of 2 wires at 5.5mm2 and 1 wire at 3.5mm2 housed in 20mm PVC conduit located in the electrical room basement. It has one circuit for the basement lighting with a load of 1140VA on a 20A breaker. The second panel has a main breaker of 150A, is mounted recessed with a feeder cable of 2 wires at 50mm2 and 1 wire at 14mm2 in 40mm PVC conduit located on the second floor. It has one circuit for the first floor with a load

Uploaded by

derfliw
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
0% found this document useful (0 votes)
175 views1 page

EARCON Builders: Recommended Size of Transformer

The document provides a schedule of loads for two electrical panels. The lighting panel has a main circuit breaker of 40A and is mounted recessed with a feeder cable of 2 wires at 5.5mm2 and 1 wire at 3.5mm2 housed in 20mm PVC conduit located in the electrical room basement. It has one circuit for the basement lighting with a load of 1140VA on a 20A breaker. The second panel has a main breaker of 150A, is mounted recessed with a feeder cable of 2 wires at 50mm2 and 1 wire at 14mm2 in 40mm PVC conduit located on the second floor. It has one circuit for the first floor with a load

Uploaded by

derfliw
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

SCHEDULE OF LOADS

PANEL : LIGHTING PANEL


MAIN CIRCUIT BREAKER :40 AT
SYSTEM
MOUNTING
: 1∅
: RECESSED TYPE
PANEL : PP - 2BF
MAIN CIRCUIT BREAKER :150 AT
SYSTEM
MOUNTING
: 1∅
: RECESSED TYPE
RECOMMENDED SIZE OF TRANSFORMER
FEEDER CABLE : 2 - 5.5 mm² + 1 - 3.5 mm² THHN/THWN WIRE ENCLOSURE : NEMA TYPE 1 FEEDER CABLE : 2 - 50 mm² + 1 - 14 mm² THHN/THWN WIRE ENCLOSURE : NEMA TYPE 1
RACEWAY : 20mmØ PVC LOCATION : EE Rm. Basement RACEWAY : 40mmØ PVC LOCATION : EE Rm. Second Floor
CKT. CB RATING WIRES CONDUIT (PVC) CKT. CB RATING WIRES CONDUIT (PVC) CONNECTED LOAD (VA) = (189512 VA / 1000) = 189.5 kVA
NO.
1
LO
57
DESCRIPTION
Basement Lighting 1
VA
1140
VOLTS
230
AMPERE
4.96
AT
20
PHASE
1 2 -
THHN/THWN
3.5 mm² + 1 - 3.5 mm²
mmØ
20 mmØ
NO.
1
DESCRIPTION
PP - B1
VA
10480
VOLTS
230
AMPERE
45.57
AT
50
PHASE
1
THHN/THWN
2 - 8.0 mm² + 1 - 3.5 mm²
mmØ
20 mmØ
CAPACITY @ OF TRANSFORMER 1.2 DIV. FACTOR
2 57 Basement Lighting 2 1140 230 4.96 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ 2 PP - B2 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ = (189.5 kVA / 1.2) = 157.92 kVA
3 63 Ground Floor Lighting 1 1260 230 5.98 20 1 2 - 5.5 mm² + 1 - 3.5 mm² 20 mmØ 3 PP - B3 15720 230 68.35 70 1 2 - 14.0 mm² + 1 - 5.5 mm² 25 mmØ
4 36 Ground Floor Lighting 2 1080 230 4.7 20 1 2 - 5.5 mm² + 1 - 3.5 mm² 20 mmØ 4 SPARE 1000 230 4.35 20 1 USE : 1 - 200 kVA, 3Ø, 13.8 kV (Pri / 230V (sec), 60 Hz
5 61 Second Floor Lighting 1830 230 7.96 40 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ 5 SPARE 1000 230 4.35 20 1
6 21 Third Floor Lighting 630 230 2.74 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ TOTAL 38680 168.17
7 SPARE 1000 230 4.35 20 1 COMPUTATION:
8 SPARE 1000 230 4.35 20 1 Icb = (AMPERE x 80% x 1.15) = 154.72 A
TOTAL 9080 39.48
COMPUTATION: PANEL : PP - 3F SYSTEM : 1∅
Icb = (AMPERE x 80% x 1.15) = 36.32 A MAIN CIRCUIT BREAKER :150 AT
FEEDER CABLE : 2 - 50 mm² + 1 - 14 mm² THHN/THWN WIRE
MOUNTING
ENCLOSURE
: RECESSED TYPE
: NEMA TYPE 1
GENERATOR SIZE
PANEL : POWER PANEL SYSTEM : 1∅ RACEWAY : 40mmØ PVC LOCATION : EE Rm. Second Floor
MAIN CIRCUIT BREAKER : 50 AT MOUNTING : RECESSED TYPE CKT. CB RATING WIRES CONDUIT (PVC)
FEEDER CABLE : 2 - 8.0 mm² + 1 - 3.5 mm² THHN/THWN WIRE ENCLOSURE : NEMA TYPE 1 NO. DESCRIPTION VA VOLTS AMPERE AT PHASE THHN/THWN mmØ CONNECTED LOAD = 189.5 kVA
RACEWAY : 20mmØ PVC LOCATION : EE Rm. Basement 1 PP - B4 15720 230 68.35 70 1 2 - 14.0 mm² + 1 - 5.5 mm² 25 mmØ
CKT. CB RATING WIRES CONDUIT (PVC) 2 PP - B5 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ
DEMAND LOAD @ 90% df = 170.55 kVA
NO. CO
1 11
HP DESCRIPTION
Basement Power Outlet
VA
1980
VOLTS
230
AMPERE
8.61
AT
20
PHASE
1 2 -
THHN/THWN
3.5 mm² + 1 - 3.5 mm²
mmØ
20 mmØ
3
4
PP - B6
SPARE
10480
1000
230
230
45.57
4.35
50
20
1
1
2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ
GENERATOR CAPACITY @ 10$ GROWTH FACTOR
2 1 Admin ACU 1260 230 5.48 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ 5 SPARE 1000 230 4.35 20 1 = 170.55 kVA x 1.1 = 187.61 kVA
3 6 Ground Floor Power Outlet 1080 230 4.7 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ TOTAL 38680 168.17
4 9 Second Floor Power Outlet 1620 230 7.04 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ COMPUTATION: USE : 200 kVA, (160kW) 3Ø, 230V, 60 Hz, 1800RPM, 0.8pf
5 1 Female ACU 1260 230 5.48 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ Icb = (AMPERE x 80% x 1.15) = 154.74 A
6 1 Male ACU 1260 230 5.48 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ
7 4 Third Floor Power Outlet 720 230 3.13 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ PANEL : FPP SYSTEM : 3∅
8 SPARE 1000 230 4.35 20 1 MAIN CIRCUIT BREAKER : 600 AT, 600 AF, 42 kAIC MOUNTING : BOLT-ON
TOTAL 10180 44.26
NOTE:
FEEDER CABLE : 2 SETS OF 3 - 150 mm² + 1 - 22 mm² THHN/THWN WIRE ENCLOSURE : NEMA TYPE 3R
COMPUTATION: RACEWAY : 80mmØ RSC LOCATION : BASEMENT - EE Rm.
Icb = (AMPERE x 80% x 1.15) = 40.72 A
CKT. # DESCRIPTION VA VOLTS CONNECTED LOAD CB RATING THHN/THWN WIRE CONDUIT
PANEL : CADP SYSTEM : 3∅ AB BC CA AT PHASE mmØ
MAIN CIRCUIT BREAKER : 600 AT, 600 AF, 42 kAIC MOUNTING : BOLT-ON 1 FIRE PUMP, 40 HP, 3∅ 41430 230 13840 13840 13840 600 3∅ 3 - 125 mm² + 1 - 22 mm² 60 mmØ PVC A. THE MAIN CIRCUIT BREAKER HAS TO BE COORDINATED WITH FIRE PUMP VALUE AS
FEEDER CABLE
RACEWAY
: 2 SETS OF 3 - 150 mm² + 1 - 22 mm² THHN/THWN WIRE
: 80mmØ RSC PIPE
ENCLOSURE
LOCATION
:
:
NEMA TYPE 3R
EE Rm. Basement
2
3
JOCKEY PUMP, 5 HP, 3∅
WATER PUMP 1, 3 HP, 1∅
6060
3910
230
230
2020
3910
2020 2020 40
40
3∅
1∅
3 - 5.5 mm² + 1 - 5.5
1 - 5.5 mm² + 1 - 5.5
mm²
mm²
25 mmØ PVC
25 mmØ PVC
FOLLOWS:
4 WATER PUMP 2, 3 HP, 1∅ 3910 230 3910 40 1∅ 1 - 5.5 mm² + 1 - 5.5 mm² 25 mmØ PVC
CKT. # DESCRIPTION VA VOLTS AMPERE CB RATING WIRES CONDUIT 5 SPARE, 2P 3910 230 3910 40 1∅
AB BC CA AT PHASE THHN/THWN mmØ 6 SPARE, 3P 3910 230 3∅ ICB = [ IFL FIRE PUMP ] (LRC)
1 LIGHTING PANEL 39.48 1∅ TOTAL 59220 19770 19770 19770
2 POWER PANEL
9080
10180
230
230 44.26
40
50 1∅
2 - 5.5 mm² + 1 - 3.5 mm²
2 - 8.0 mm² + 1 - 3.5 mm²
20 mmØ PVC
20 mmØ PVC LOAD COMPUTATION: 100% DF Icb = Idf x 1.15
= (104A)(6)
3
4
FACP
FPP
4600 230 20 20 1∅
3∅
2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ PVC
Ifeeder = Idf x 1.25
168.63
210.79
193.92 = 624A
59220 230 257.48 257.48 257.48 600 2 X 3 - 150 mm² + 1 - 22 mm² 80 mmØ RSC
TOTAL 83080 296.96 301.74 277.48
LOAD COMPUTATION:
1.73 (Highest Single Phase Ampere x 80% x 1.15) = 480.80 A
PANEL
MAIN CIRCUIT BREAKER
: MDP
: 700 AT
SYSTEM
MOUNTING
: 3∅
: BOLT-ON
USE: 600 AT, 600 AF, 3Ø, 230V 60Hz 42kAIC
FEEDER CABLE : 2 SETS OF 3 - 150 mm² + 1 - 22 mm² THHN/THWN WIRE ENCLOSURE : NEMA TYPE 3R THE 42 kAIC VALUE IS COMMERCIALLY AVAILABLE.
PANEL : PP - GF SYSTEM : 1∅ RACEWAY : 80mmØ RSC PIPE LOCATION : BASEMENT - EE Rm.
MAIN CIRCUIT BREAKER :150 AT MOUNTING : RECESSED TYPE
FEEDER CABLE
RACEWAY
: 2 - 50 mm² + 1 - 14 mm² THHN/THWN WIRE
: 40mmØ PVC
ENCLOSURE
LOCATION
: NEMA TYPE 1
: BASEMENT - EE Rm.
CKT. # DESCRIPTION VA VOLTS
AB
AMPERE
BC CA AT
CB RATING
PHASE
THHN/THWN WIRE CONDUIT
mmØ
B. THE kAIC UP MAIN CIRCUIT BREAKER'S HAS TO BE SPECIFIED HIGHER THAN THE FAULT
CKT. CB RATING WIRES CONDUIT (PVC) 1 PP-GF 33440 230 145.39 150 1∅ 2 - 50 mm² + 1 - 14 mm² 40 mmØ PVC CONTRIBUTOR (FIRE PUMP) WHICH IS 65 kAIC.
NO. DESCRIPTION VA VOLTS AMPERE AT PHASE THHN/THWN mmØ 2 PP-2AF 42920 230 186.61 200 1∅ 2 - 80 mm² + 1 - 14 mm² 50 mmØ PVC
1 PP - A1 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ 3 PP-2BF 38680 230 168.17 150 1∅ 2 - 50 mm² + 1 - 14 mm² 40 mmØ PVC
2 PP - A2 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ 4 PP-3F 38680 230 168.17 150 1∅ 2 - 50 mm² + 1 - 14 mm² 40 mmØ PVC
3 PP - A3 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ 5 SPARE 23860 230 103.74 100 1∅ 2 - 30 mm² + 1 - 14 mm² 32 mmØ PVC
4 SPARE 1000 230 4.35 20 1 6 SPARE 33200 230 140 150 1∅ 2 - 50 mm² + 1 - 14 mm² 40 mmØ PVC
5 SPARE 1000 230 4.35 20 1 7 FPP 83080 230 361.22 361.22 361.22 600 3∅ 3 - 150 mm² + 1 - 22 mm² 80 mmØ RSC
TOTAL 33440 145.39 TOTAL 292680 674.78 651.57 669.39
COMPUTATION: LOAD COMPUTATION:
Icb = (AMPERE x 80% x 1.15) = 149.76 A 1.73 (Highest Single Phase Ampere x 44% x 1.25) = 642.80 A

PANEL : PP - 2AF SYSTEM : 1∅


MAIN CIRCUIT BREAKER :200 AT MOUNTING : RECESSED TYPE
FEEDER CABLE : 2 - 80 mm² + 1 - 14 mm² THHN/THWN WIRE ENCLOSURE : NEMA TYPE 1
RACEWAY : 50mmØ PVC LOCATION : EE Rm. Second Floor
CKT. CB RATING WIRES CONDUIT (PVC)
NO. DESCRIPTION VA VOLTS AMPERE AT PHASE THHN/THWN mmØ
1 PP - A4 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ
2 PP - A5 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ
3 PP - A6 10480 230 45.57 50 1 2 - 8.0 mm² + 1 - 3.5 mm² 20 mmØ
4 PP - A7 10480 230 45.57 50 1
5 SPARE 1000 230 4.35 20 1
TOTAL 42920 186.61
COMPUTATION:
Icb = (AMPERE x 80% x 1.15) = 171.68 A

PANEL : PP-A1 TO PP-A7, PP-B1 & PP-B2, PP-B5 & PP-B6 SYSTEM : 1∅ PANEL : PP-B3 & PP-B4 SYSTEM : 1∅
MAIN CIRCUIT BREAKER : 50 AT MOUNTING : RECESSED TYPE MAIN CIRCUIT BREAKER : 70 AT MOUNTING : RECESSED TYPE
FEEDER CABLE : 2 - 8.0 mm² + 1 - 3.5 mm² THHN/THWN WIRE ENCLOSURE : HOME PANELBOARD FEEDER CABLE :2 - 14.0 mm² + 1 - 5.5 mm² THHN/THWN WIRE ENCLOSURE : HOME PANELBOARD
RACEWAY : 20mmØ PVC LOCATION : UNIT RACEWAY : 25mmØ PVC LOCATION : UNIT
CKT. CB RATING WIRES CONDUIT (PVC) CKT. CB RATING WIRES CONDUIT (PVC)
NO. CO LO HP DESCRIPTION VA VOLTS AMPERE AT PHASE THHN/THWN mmØ NO. CO LO HP DESCRIPTION VA VOLTS AMPERE AT PHASE THHN/THWN mmØ
1 2 ACU SPLIT TYPE 6240 230 27.13 40 1 2 - 5.5 mm² + 1 - 3.5 mm² 20 mmØ 1 2 ACU SPLIT TYPE 6240 230 27.13 40 1 2 - 5.5 mm² + 1 - 3.5 mm² 20 mmØ
2 8 CONVENIENCE OUTLET 1440 230 6.26 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ 2 2 ACU SPLIT TYPE 6240 230 27.13 40 1 2 - 5.5 mm² + 1 - 3.5 mm² 20 mmØ
3 20 LIGHTING 800 230 3.48 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ 3 8 CONVENIENCE OUTLET 1440 230 6.26 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ
4 SPARE 1000 230 4.35 20 1 4 20 LIGHTING 800 230 3.48 20 1 2 - 3.5 mm² + 1 - 3.5 mm² 20 mmØ
5 SPARE 1000 230 4.35 20 1 5 SPARE 1000 230 4.35 20 1
TOTAL 10480 45.57 TOTAL 15720 68.35
COMPUTATION: COMPUTATION:
Icb = (AMPERE x 80% x 1.15) = 41.92 A Icb = (AMPERE x 80% x 1.15) = 62.88 A

PROJECT TITLE: PROJECT OWNER: SHEET CONTENTS: DESIGNED BY: W.P.B SHEET NO.

Proposed Three (3) Storey DESIGN DEV'T: E.C.G.R.

EARCON Builders
Wilfred P. Balagot SCHEDULE OF LOADS
Commercial Building w/ Basement & Roof Deck
P.T.R. NO.:
PROFESSIONAL ELECTRICAL ENGINEER

5611432 REG. NO.: 1833


Visayas Avenue, Quezon City
DRAWING PRODUCTION:

E.O.RAMIREZ
E-2
NOTE :
ACAD BY:
LOCATION : 31 Commonwealth Ave. Ext., Brgy. Sta. Monica, Nova., Q.C. PAGE NO. OF TOTAL NO.
DATE ISSUED: 01-09-18 T.I.N.: 125-478-641 THIS DRAWING AS AN INSTRUMENT OF PROFESSIONAL SERVICE IS THE PROPERTY OF THE E.C.G.R. OF PAGES
TELEFAX : 9379493 l 9379495 ARCHITECT AND AS SUCH MUST NOT BE REPRODUCED OR COPIED IN WHOLE OR IN PART
CHECKED BY:

ISSUED AT: Q.C.


WITHOUT HIS PERMISSION. ALL DRAWINGS ARE TO BE RETURNED WHEN NO LONGER IN USE.
SEC. 33
Mrs. Maritza L. Tecson PROJECT NUMBER: 2 8 OF

You might also like