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Riser Diagram: Computations

This document provides a riser diagram and schedule of loads for a proposed two-story residential building in Barangay Bagumbayan Sur, Naga City. It details 14 circuits serving various lighting outlets, convenience outlets, appliances including an electric stove, refrigerator, and spare circuits. Calculations determine the total connected load is 10,285 VA and maximum demand is 6,885 VA. The recommended service equipment is a 60 ampere, 230 volt, 2-pole molded case circuit breaker in a NEMA 1 enclosure.

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mark dominic
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474 views1 page

Riser Diagram: Computations

This document provides a riser diagram and schedule of loads for a proposed two-story residential building in Barangay Bagumbayan Sur, Naga City. It details 14 circuits serving various lighting outlets, convenience outlets, appliances including an electric stove, refrigerator, and spare circuits. Calculations determine the total connected load is 10,285 VA and maximum demand is 6,885 VA. The recommended service equipment is a 60 ampere, 230 volt, 2-pole molded case circuit breaker in a NEMA 1 enclosure.

Uploaded by

mark dominic
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
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CASURECO,230 VOLTS,SERVICE ENTRANCE

NUMBER OF

VOLTS

VOLTAMPERE

CKT.
No.

LOAD DESCRIPTION

LIGHTING OUTLET

230

900

LIGHTING OUTLET

10

230

LIGHTING OUTLET

11

230

LIGHTING OUTLET

230

CONVENIENCE OUTLET

230

CONVENIENCE OUTLET

230

1,400

CONVENIENCE OUTLET

L.O.

C.O.

ELECTRIC STOVE

AMPERE

CKT. PROTECTIONS

FEEDERS

RACEWAYS

AT

AF

POLE

WIRE

SIZE
mm2

TYPE

SIZE
mmO

TYPE

3.91

15

60

2.0

THHN

20

uPVC CONDUIT PIPE

1,000

4.35

15

60

2.0

THHN

20

uPVC CONDUIT PIPE

1,100

4.78

15

60

3.5

THHN

20

uPVC CONDUIT PIPE

900

3.91

20

50

3.5

THHN

20

uPVC CONDUIT PIPE

1,200

5.22

20

60

3.5

THHN

20

uPVC CONDUIT PIPE

6.09

20

60

SPO

uPVC CONDUIT PIPE

THHN

230

1,600

6.96

20

60

230

3,000

13.04

30

60

5.5

THHN

25

uPVC CONDUIT PIPE


uPVC CONDUIT PIPE

3.5

THHN

20

uPVC CONDUIT PIPE

THHN

REFRIGERATOR

230

1,000

4.35

20

60

10

CONVENIENCE OUTLET

230

1,200

5.22

20

60

THHN

uPVC CONDUIT PIPE

11

CONVENIENCE OUTLET

230

1,200

5.22

20

60

THHN

uPVC CONDUIT PIPE

12

CONVENIENCE OUTLET

230

1,600

6.09

20

60

THHN

uPVC CONDUIT PIPE

13

SPARE

230

1,000

4.35

15

60

2.0

THHN

20

uPVC CONDUIT PIPE

14

SPARE

230

1,000

4.35

20

60

3.5

THHN

20

uPVC CONDUIT PIPE

230

14,220

61.83

60

60

14

THHN

32

uPVC CONDUIT PIPE

TOTAL

39

41

14.0mm2 THHN, STRANDED CU. WIRE IN

KILOWATT
HOUR METER

2
4
6
8
10
12
14

60 AT

15 AT

15 AT

15 AT

15 AT

20 AT

20 AT

20 AT

30 AT

20 AT

20 AT

20 AT

20 AT

SPARE

SPARE

1
3
5
7
9
11
13

COMPUTATIONS :
GROUND

OTHER LOADS :
LIGHTING OUTLET
- 3,900
CONVENIENCE OUTLET - 8,200
SPARE
- 2,000
14,100 VA
APPLICATION OF DEMAND FACTOR
1ST 3000VA @ 100% D.F. - 3000
REMAINDER @ 35% D.F. - 3,885
6,885 VA

RANGE @ 80% D.F.


- 2400
REFRIGERATOR @ 100% D.F. - 1000
3400 VA
TOTAL CONNECTED LOAD - 10285

RISER DIAGRAM

I= 10285 + 25%(1840)
230
I= 46.96 Amp.

USE : 1-60AT/60AF,230V,2P,MCCB,PLUG-IN TYPE IN NEMA 1 ENCLOSURE

CERTIFIED BY:

PRC REG. NO.


PTR NO.

CAMILLE MARTIN

ISSUED ON:

NAME OF PROJECT:

PROPOSED TWO-STOREY RESIDENTIAL


BUILDING

APPROVED:

SHEET CONTENTS:

CAMILLE MARTIN

RISER DIAGRAM AND SCHEDULE


OF LOAD

SHEET NO.

E- 6
6

ISSUED AT:
LOCATION:

BARANGAY BAGUMBAYAN SUR, NAGA CITY

OWNER

DESIGNED BY:

CAMILLE MARTIN

DATE:

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