DESIGN ANALYSIS

System Diagram:
COMPUTATIONS OF LOADS: MAIN DISCONNECTING MEANS & MTS
Iw (MAIN SERVICE ENTRANCE CONDUCTOR)= (Total current, It x Demand factor,df) + 25% of Largest motor
FAULT CURRENT CALCULATIONS: (Per unit Method)
Iw (WIRE AMPACITY) = 148.50 + 2.00 = 150.50 USE: 2-100 MM² THW + 1 - 22 MM² THW CU WIRE in 65 MM Ø RSC PIPE

Icb (Main Over Current Protection Device)= Iw + Current of Largest motor

1. Utility Fault kVA (kVAu) = __________kVA MAIN DISCONNECTING MEANS AND/OR MANUAL TRANSFER SWITCH, BREAKER TYPE,
Icb (MAIN OCPD) = 150.50 + 8.00 = 158.50 USE:
250AF with 200AT CB, 2 POLE, 240V, 60HZ with GROUNDING LUGS
2. Power Base (kVA base) = __________kVA TRANSFORMER & GENERATOR RATING:
USE: 1-50 KVA DISTRIBUTION TRANSFORMER, Secondary Voltage:110/240V, Primary Voltage
KVA LOAD = [(Iw + I largest motor)*.23
3. Z per unit of utility source (Zus) = ______pu 36.5 x 1.250 = 29.16
]*1.25= depending on the available primary supply of the Utility Company or Cooperative

4. Z per unit of distribution transformer (Zdt) = ______pu Distribution transformer : 1 single phase; _______________; %Z = _____% Z per 30.5m Z

5. Z per unit of service drop line (Zsd) = ______pu Service drop line: _______________ Cu Wire; Areal; Length=_____m; _________; ________Ω

6. Z per unit of service entrance line (Zse) = ______pu Service entrance line: _______________ Cu Wire; RSC; Length=_____m; _________; ________Ω
2-100mm² THW Cu Wire 2-100mm² THW Cu Wire
1-22mm² THW Cu Wire (Grounding) 1-22mm² THW Cu Wire (Grounding)
7. Z per unit of service feeder line (Zfl) = ______pu Service feeder line: ______________ Cu Wire; PVC; Length=_____m; _________; ________Ω in 65mm Ø RSC Pipe in 65mm Ø RSC Pipe

Impedance Diagram: TO NEAREST POSSIBLE LOCATION

SERVICE ENTRANCE
FOR THE PROVISION OF GENERATOR
3-WIRE, SINGLE PHASE
OR EMERGENCY POWER SUPPLY
PROVIDE WITH CONNECTOR IN
PULLBOX/NEMA 3R AS REQUIRED
200A MTS, BREAKER TYPE CT RATED METER
M
CTR 5:200
FAULT CURRENT at MDM = ____________ FAULT CURRENT at LPB1 = ______________ FAULT CURRENT at PP1 = ______________
USE: __________kAIC MCCB USE:________________ USE: _______________ 2-38mm² THW Cu Wire 2-38mm² THW Cu Wire
1-14mm² THW Cu Wire (Grounding) 1-14mm² THW Cu Wire (Grounding)
in 40mm Ø RSC Pipe in 40mm Ø RSC Pipe

VOLTAGE DROP CALCULATIONS:

Voltage Drop Diagram:
PROVIDE GROUNDING ROD
Voltage Drop (VD) = I R² + X² COPPER CLAD STEEL ROD 16 mm Ø x 2400 mm
100 A, 2P 125 A, 2P
Percent Voltage Drop (%VD) = (VD/Vs) x 100
15 A, 2P 15 A, 2P 15 A, 2P 15 A, 2P
LIGHTING (1st FLOOR) 1 2 LIGHTING (1st FLOOR) LIGHTING (2nd FLOOR) 1 2 LIGHTING (2nd FLOOR)
LIGHTING (1st FLOOR) 15 A, 2P 20 A, 2P LIGHTING(ROOFDECK) 15 A, 2P 20 A, 2P
3 4 C. O. (1st FLOOR) 3 4 C. O. (2nd FLOOR)
20 A, 2P 30 A, 2P 20 A, 2P 20 A, 2P
C. O. (1st FLOOR) 5 6 ACU WT (1 HP) C. O. (2nd FLOOR) 5 6 C. O. (ROOFDECK)
30 A, 2P 20 A, 2P 20 A, 2P 30 A, 2P
R per 30.5m; X per 30.5m ACU WT (1.0 HP) 7 8 ACU WT (3/4 HP) ACU WT (0.5 HP) 7 8 ACU WT (1 HP)
20 A, 2P 30 A, 2P 30 A, 2P 30 A, 2P
SPARE 9 10 S P A R E (WATER PUMP) ACU WT (1.0 HP) 9 10 ACU WT (1 HP)
Service entrance: _______________Cu Wire; RSC; Length =_____m; _________; ________Ω ACU WT (1.0 HP) 11
30 A, 2P 20 A, 2P
12 ACU WT (3/4 HP)
PANELBOARD 1 SPARE 13
20 A, 2P 20 A, 2P
14 SPARE
Service feeder line: _______________Cu Wire; PVC; Length =_____m; _________; ________Ω

Circuit 10: _______________Cu Wire; PVC; Length =_____m; _________; ________Ω PANELBOARD 2
Total Voltage Drop = ____________ % Voltage Drop = ______________
1 SINGLE LINE DIAGRAM
The computed Voltage Drop from the service entrance to the farthest receptacle outlet of circuit number ____ with total percentage of ________% meets the allowable VD of the Philippine Electrical Code E-4 NOT TO SCALE

TABLE OF CONTENTS NOTE: Sign and Seal of Electrical plans is the sole authority of a PROFESSIONAL ELECTRICAL ENGINEER
PROFESSIONAL ELECTRICAL ENGINEER
SHEET R.A. 7920 Section 31, 32 & 34. Field of Practice and Prohibition in the Practice of Electrical Engineering and preparation of plans, supervision of installation, application of the
NO
SHEET CONTENTS DRAWING NO Philippine Electrical Code.
It shall be unlawful for any person not authorized under this Act to prepare plans, electrical valuations or specifications for any electrical wiring, equipment or
E4 SINGLE LINE DIAGRAM 1 system; and no installation thereof shall be undertaken unless the plans, designs, valuations and specifications have been prepared by or under the responsible charge of, and
signed and sealed by a professional electrical engineer; and the construction permit for the execution thereof is first secured; and unless the work is done in accordance with
TELECOMMUNICATION LAYOUT 2
the Philippine Electrical Code and is executed under the responsible charge or supervision of a PROFESSIONAL ELECTRICAL ENGINEER or REGISTERED ELECTRICAL
ENGINEER or Registered Master Electrician, as the case may be, and the routinary fiscal and ministerial requirements of the government agency, if any, exercising jurisdiction REG NO: PTR NO: TIN:
over the particular installation have been complied with.
LEGEND 4 ISS. AT: ISS. ON: TEL:

PROJECT TITLE: PREPARED BY: SUBMITTED BY: RECOMMEND APPROVAL: APPROVED BY: SHEET NO.:

STANDARD TYPE B/C MPS BUILDING

CHESTER B BANIAGA
POLICE CAPTAIN
MARY JANE R AGAMATA
POLICE MAJOR
EDITH D NARAG
POLICE LIEUTENANT COLONEL
MARIANO C RODRIGUEZ
POLICE COLONEL
JOVENCIO S BADUA, JR
POLICE COLONEL
MARCIAL MARIANO P MAGISTRADO
POLICE COLONEL
STEVE B LUDAN
POLICE BRIGADIER GENERAL
E4
LOCATION: ALFONSO CASTAÑEDA, NUEVA VIZCAYA C, INFRASTRUCTURE SECTION OIC, REU2 OIC, RLRDD CHIEF REGIONAL STAFF DEPUTY REGIONAL DIRECTOR FOR OPERATION ACTING DEPUTY REGIONAL DIRECTOR FOR ADMINISTRATION ACTING REGIONAL DIRECTOR, PRO2 ID_PDS FILES