WIRING DESIGN ANALYSIS (PANEL BOARD ) SCHEDULE OF LOADS

PANEL BOARD TYPICAL SCHEDULE OF LOADS AND COMPUTATION

NO. OF LOADS NO. OF SWITCHES
CKT. NO. OF SIZE AND TYPES
CIRCUIT NO. 1 CIRCUIT NO. 2 NO. LOAD DESCRIPTION L.O. C.O. OTHERS S1 S2 S3 S3W
TOTAL
VA
VOLTS AMPERES PROTECTION
PER CIRCUIT OF CONDUCTORS
SIZE OF PVC CONDUIT (I.D.)

LIGHTING OUTLET LIGHTING OUTLET LIGHTING OUTLET 100 VA 12 2 3 1200 230 5.22 15 AT 2 - 2.0 mm² THHN CU WIRE 20mmØ PVC CONDUIT PIPES
1

2 CONVENIENCE OUTLET 5 900 230 3.91 20 AT 2 - 3.5 mm² THHN CU WIRE 20mmØ PVC CONDUIT PIPES

I = 1200 VA / 230V = 5.22AMPS. I = 900 VA / 230V = 3.91AMPS.

3 S P A R E 20mmØ PVC CONDUIT PIPES

Ic = 1.25 X 5.22 AMPS = 6.52 AMPS. Ic = 1.25 X 3.91 AMPS = 4.89 AMPS. 4 S P A R E 20mmØ PVC CONDUIT PIPES

TOTAL LOAD CONNECTED 12 5 2 3 2100 9.13 30 AT

USE: 2 - 2.0 mm² THHN CU WIRE IN A USE: 2 - 3.5 mm² THHN CU WIRE IN A

COMPUTATIONS PANEL BOARD SERVICE ENTRANCE PROTECTION:

20 MM Ø PVC CONDUIT S-40 AND 20 MM Ø PVC CONDUIT S-40 AND (PB)
USE 30AF / 30AT, 2P, 250V, MOLDED CASE
AIR CIRCUIT BREAKER
IT = 5.22+3.91
15 AT CIRCUIT BREAKER 20 AT CIRCUIT BREAKER IT = 9.13 AMPERES
SERVICE ENTRANCE:
ITC = 9.13 AMP x 1.25
14.0 mm2 THHN CU. WIRE IN 25MMØ CONDUIT PIPE

COMPUTATIONS PANEL BOARD

SERVICE ENTRANCE PROTECTION: ITC = 11.14 AMP ON EMBEDDED AND 3Ø RSC ON EXPOSED SERVICE ENTRANCE

(PB) USE 30AF / 30AT, 2P, 250V, MOLDED CASE

AIR CIRCUIT BREAKER
IT = 5.22+3.91
IT = 9.13 AMPERES
SERVICE ENTRANCE:
ITC = 9.13 AMP x 1.25
14.0 mm2 THHN CU. WIRE IN 25MMØ CONDUIT PIPE
ITC = 11.14 AMP ON EMBEDDED AND 3Ø RSC ON EXPOSED SERVICE ENTRANCE

SPECIFICATIONS:

ALL WORKS SHALL BE DONE IN ACCORDANCE WITH THE LATEST EDITION OF THE PHILIPPINE

ELECTRICAL CODE , LOCAL ORDINANCES AND REQUIREMENTS OF LOCAL ELECTRIC UTILITY

COMPANY.

2-14.0 sq.mm THHN WIRE NATURE OF SERVICE TO THE BUILDING SHALL BE SINGLE PHASE , TWO ( 2 ) WIRE , 230 VOLTS 60
HERTZ , ALTERNATING CURRENT ( AC )
IN A 25mm Ø uPVC CONDUIT
S-40 TO SERVICE ENTRANCE ALL MATERIALS AND EQUIPMENTS TO BE USED SHALL BE BRAND NEW AND OF APPROVED TYPE
FOR THE PURPOSE AND LOCATION INDENTED.

ALL WIRING SHALL IN RIGID NON METALLIC CONDUIT ( u PVC ) RUN EMBEDDED ON ALL
SEE PANEL BOARD DETAIL CONCRETE AND HALLOW BLOCKS STRUCTURES , WALL , FLOORS , AND PARTITION OR RUN
CONCEALED BETWEEN DOUBLE WALLS AND CEILINGS.

MOUNTING HEIGHTS SHALL BE:

30 AT MAIN 2-14.0 mm2 THHN CU. WIRE SWITCHES - 1.40 M. ABOVE FINISHED FLOOR LINE.
IN 25MMØ CONDUIT PIPE CONVENIENCE OUTLET - 0.30 M. ABOVE FINISHED FLOOR LINE.
PNS-14 AND 0.15 M. ABOVE COUNTER AND TABLE TOPS.
WALL LAMP - 1.80 M. ABOVE FINISHED FLOOR LINE.
PANEL BOARD - 1.80 M. ABOVE FINISHED FLOOR LINE TO TOP OF
PANEL.
CKT 1 CKT 2
15 AT 20 AT PULL OR JUNCTION BOXES SHALL BE INSTALLED WHERE NECESSARY EVEN IF NOT INDICATED
IN THE PLAN

ALL WORKS SHALL BE UNDER THE DIRECT AND IMMEDIATE SUPERVISION OF DULY LICENSED
CKT 3 CKT 4 PEE / REE / RME
SPARE SPARE M
KILOWATT HOUR METER

NATURAL GROUND LINE

TYPICAL SINGLE LINE DIAGRAM

PANEL BOARD- DETAIL
DRAWN
NTS.

SIGNED: PRC NO. PROJECT : APPROVED BY: SHEET CONTENTS: SHEET NO.

CADD BY: PTR NO

APPROVED BY: DATE ISSUED. LTO PANDAN OFFICE JEREMY S. CHNY AS SHOWN E
REVISION: PLACE ISSUED. 2
ELECTRICAL ENGINEER TIN. LOCATION: JINALINAN, PANDAN , ANTIQUE OWNER
DATE: