Cost Comparison of 5A and 13A Socket Outlet Wiring in Sri Lanka

This detailed document compares the cost and wiring requirements of 5A and 13A socket outlets for different types of houses in Sri Lanka based on their floor area. It includes planned socket outlet arrangements and number of circuits for low-income, lower middle class, and middle class houses of varying sizes. The document also provides specific details for each case scenario.

• Sri Lanka
• Socket Outlet
• Wiring
• Cost Comparison
• House

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1. COST COMPARISON OF 5A AND 13A SOCKET OUTLET WIRING FOR MAJORITY OF HOUSES IN SRI LANKA

2. TYPES OF HOUSES ACCORDING TO TOTAL FLOOR AREA (A) FLOOR AREA A(m2) TYPE LOW INCOME HOUSE <50 LOWER MIDDLE CLASS HOUSE 50<A<100 MIDDLE CLASS HOUSE >100

3. CASE I : PLANNED 5A & 13A SOCKET OUTLET ARRANGEMENTS AND NUMBER OF CIRCUITS FOR LOW INCOME HOUSE (AREA < 50m2) NO. OF 5A & 13A SOCKET OUTLETS ROOM NO. OF CIRCUITS 5A 13A BED ROOM(1 no.) 2 - 1 LIVING ROOM 4 - 2 PANTRY - 1 (ONE DEDICATED)

4. CASE II : PLANNED 5A & 13A SOCKET OUTLET ARRANGEMENTS AND NUMBER OF CIRCUITS FOR LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) NO. OF 5A & 13A SOCKET OUTLETS ROOM NO. OF CIRCUITS 5A 13A BED ROOM (3 nos.) 6 - 3 LIVING ROOM 6 - 3 PANTRY 2 1 2(ONE DEDICATED CCT)

5. CASE III : PLANNED 5A & 13A SOCKET OUTLET ARRANGEMENTS AND NUMBER OF CIRCUITS FOR MIDDLE CLASS HOUSE (AREA > 100m2) NO. OF 5A & 13A SOCKET OUTLETS ROOM NO. OF CIRCUITS 5A 13A BED ROOM (3 nos.) 6 - 3 LIVING ROOM 6 - 3 PANTRY 4 1 3 (ONE DEDICATED CCT) OTHER 4 - 2

6. CASE IV : PLANNED 13A SOCKET OUTLET ARRANGEMENTS AND NUMBER OF CIRCUITS FOR LOW INCOME HOUSE (AREA < 50m2) NO. OF 13A SOCKET OUTLETS ROOM NO. OF CIRCUITS 1 (RADIAL CCT- REF. APPX. 15 OF IEE) 1 (DEDICATED RADIAL CCT FOR PANTRY) BED ROOM 2 LIVING ROOM 4 PANTRY 1

7. CASE V : PLANNED 13A SOCKET OUTLET ARRANGEMENTS AND NUMBER OF CIRCUITS FOR LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) NO. OF 13A SOCKET OUTLETS ROOM NO. OF CIRCUITS 2 (RADIAL CCTS- REF. APPX. 15 OF IEE) 1 (DEDICATED RADIAL CCT FOR PANTRY) BED ROOM 6 LIVING ROOM 6 PANTRY 1

8. CASE VI : PLANNED 13A SOCKET OUTLET ARRANGEMENTS AND NUMBER OF CIRCUITS FOR MIDDLE CLASS HOUSE (AREA > 100m2) NO. OF 13A SOCKET OUTLETS ROOM NO. OF CIRCUITS BED ROOM 6 3 (RADIAL CCTS- REF. APPX. 15 OF IEE) 1 (ONE DEDICATED CCT) LIVING ROOM 6 OTHER AREAS 4 PANTRY 5

9. SUMMARY FOR ALL CASES PROPOSED NUMBER OF SOCKET OUTLETS NO. OF CIRCUITS TYPE OF HOUSE CASE 5A 13A LOW INCOME HOUSE (AREA < 50m2) I 6 1 4 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) II 14 1 8 MIDDLE CLASS HOUSE (AREA > 100m2) III 20 1 11 LOW INCOME HOUSE (AREA < 50m2) IV 7 2 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) V 15 3 MIDDLE CLASS HOUSE (AREA > 100m2) VI 21 4

10. CABLE SIZING TYPE 1 : 5A SOCKET OUTLET (2 NOS FOR ONE CIRCUIT) 1.5mm2 CU/PVC/PVC TWIN CABLE + 2.5mm2 CU/PVC EARTH CABLE TYPE 2: 13A SOCKET OUTLET 2.5mm2 CU/PVC/PVC TWIN CABLE + 2.5mm2 CU/PVC EARTH CABLE

11. RATE BREAKDOWN FOR WIRING 2 NOS OF 5A SOCKET OUTLETS Description Qty 25 Rate Rs. 97.00 Amount Rs. 2,425.00 Twin 1.5mm2 cables (m) 1x 2.5mm2 Earth cables (m) 5A socket outlet (nos) 1" conduits (lengths) Conduit bend (nos) mounting box (nos) 2x 3 way J. box (nos) Allow for screws, nails etc. (item) 25 66.00 1,650.00 2 405.00 110.77 18.00 35.00 21.00 30.00 810.00 692.31 72.00 70.00 42.00 30.00 5,791.31 50.00 50.00 1,400.00 7,291.31 7,292.00 6.25 4 2 2 1 Sum Transport Other Accessories Installation Total SAY Installation charges for 1no. of 5A socket outlet considered as Rs.700.00

12. RATE BREAKDOWN FOR WIRING OF 1 NO 13A SOCKET OUTLET Description Qty 12.5 Rate Rs. 141.50 Amount Rs. 1,768.75 Twin 2.5mm2 cables (m) 1x 2.5mm2 Earth cables (m) 13A socket outlet (nos) 1" conduits (lengths) Conduit bend (nos) mounting box (nos) 2x 3 way J. box (nos) Allow for screws, nails etc. (item) 12.5 1 3.125 2 1 1 1 66.00 425.00 110.77 18.00 35.00 21.00 20.00 825.00 425.00 346.16 36.00 35.00 21.00 20.00 3,476.91 50.00 50.00 700.00 4,276.91 4,277.00 Sum Transport Other Accessories Installation Total SAY Installation charges for 1no. of 13A socket outlet considered as Rs.700.00

13. RATE BREAKDOWN FOR WIRING OF 6 NOS 13A SOCKET OUTLETS Description Qty 60 Rate Rs. 141.50 Amount Rs. 8,490.00 Twin 2.5mm2 cables (m) 1x 2.5mm2 Earth cables (m) 13A socket outlet (nos) 1" conduits (lengths) Conduit bend (nos) mounting box (nos) 2x 3 way J. box (nos) Allow for screws, nails etc. (item) 60 6 15 6 6 6 1 66.00 425.00 110.77 18.00 35.00 21.00 50.00 3,960.00 2,550.00 1,661.55 108.00 210.00 126.00 50.00 17,155.55 50.00 50.00 4,200.00 21,455.55 21,456.00 Sum Transport Other Accessories Installation Total SAY Installation charges for 1no. of 13A socket outlet considered as Rs.700.00

14. RATE BREAKDOWN FOR WIRING OF 7 NOS 13A SOCKET OUTLETS Description Qty 70 Rate Rs. 141.50 Amount Rs. 9,905.00 Twin 2.5mm2 cables (m) 1x 2.5mm2 Earth cables (m) 13A socket outlet (nos) 1" conduits (lengths) Conduit bend (nos) mounting box (nos) 2x 3 way J. box (nos) Allow for screws, nails etc. (item) 70 7 17.5 7 7 7 1 66.00 425.00 110.77 18.00 35.00 21.00 75.00 4,620.00 2,975.00 1,938.48 126.00 245.00 147.00 75.00 20,031.48 50.00 50.00 4,900.00 25,031.48 25,031.50 Sum Transport Other Accessories Installation Total SAY Installation charges for 1no. of 13A socket outlet considered as Rs.700.00

15. SUMMARY OF WIRING COST COST FOR THE WIRING RS. 7,292.00 CIRCUIT TYPE WITH TYPE OF SOCKETS AND THEIR NUMBERS CATEGORY 2 NOS OF 5A SOCKET OUTLETS CATEGORY 5A 1 NO OF 13A SOCKET OUTLET 6 NOS OF 13A SOCKET OUTLETS 7 NO OF 13A SOCKET OUTLETS 4,277.00 21,456.00 25,031.50 CATEGORY 13A-1 CATEGORY 13A-6 CATEGORY 13A-7

16. SOCKET OUTLET WIRING COST FOR EACH CASE PROPOSED NUMBER OF SOCKET OUTLETS TOTAL WIRING COST NO. OF CCTS S/O WIRING CATEGORY TYPE OF HOUSE CASE 5A 6 13A 1 RS. CAT 5A (3 NOS) + CAT 13A-1 LOW INCOME HOUSE (AREA < 50m2) I 4 26,153.00 CAT 5A (7 NOS) + CAT 13A-1 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) MIDDLE CLASS HOUSE (AREA > 100m2) II 14 1 8 55,321.00 CAT 5A (10 NOS) + CAT 13A-1 III 20 1 11 77,197.00 CAT 13A-1 + CAT 13A-6 LOW INCOME HOUSE (AREA < 50m2) IV 7 2 25,733.00 CAT 13A-7 (2 NOS) + CAT 13A-1 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) MIDDLE CLASS HOUSE (AREA > 100m2) V 15 3 54,340.00 CAT 13A-7 (3 NOS) + CAT 13A-1 VI 21 4 79,371.50

17. COST OF CIRCUIT BREAKERS FOR SOCKET OUTLETS FOR EACH CASE NOF OF CURCUITS Rate Rs. Amount Rs. TYPE OF HOUSE CASE MCB QTY LOW INCOME HOUSE (AREA < 50m2) I 4 10A SP 6kA MCB 4 480.00 1920.00 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) II 8 10A SP 6kA MCB 8 480.00 3840.00 MIDDLE CLASS HOUSE (AREA > 100m2) III 11 10A SP 6kA MCB 11 480.00 5280.00 NOF OF CURCUITS Rate Rs. Amount Rs. TYPE OF HOUSE CASE MCB QTY LOW INCOME HOUSE (AREA < 50m2) IV 2 16A SP 6kA MCB 2 480.00 960.00 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) V 3 16A SP 6kA MCB 3 480.00 1440.00 MIDDLE CLASS HOUSE (AREA > 100m2) VI 4 16A SP 6kA MCB 4 480.00 1920.00

18. TOTAL COST FOR EACH CASE WIRING COST OF SOCKET OUTLETS TYPE OF HOUSE CASE TOTAL COST COST FOR MCBs Rs. Rs. Rs. LOW INCOME HOUSE (AREA < 50m2) I 26,153.00 1,920.00 28,073.00 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) II 55,321.00 3,840.00 59,161.00 MIDDLE CLASS HOUSE (AREA > 100m2) III 77,197.00 5,280.00 82,477.00 LOW INCOME HOUSE (AREA < 50m2) IV 25,733.00 960.00 26,693.00 LOWER MIDDLE CLASS HOUSE (50m2 < AREA < 100m2) V 54,340.00 1,440.00 55,780.00 MIDDLE CLASS HOUSE (AREA > 100m2) VI 79,371.50 1,920.00 81,291.50

19. SUMMARY OF COST COMPARISON 90,000.00 5A S/O WIRING COST 80,000.00 70,000.00 13A S/O WIRING COST 60,000.00 82,477.00 50,000.00 59,161.00 81,291.50 55,780.00 40,000.00 30,000.00 28,073.00 20,000.00 26,693.00 10,000.00 0.00 LOW INCOME HOUSE (AREA<50m2) LOWER MIDDLE CLASS HOUSE (50m2<AREA<100m2) MIDDLE CLASS HOUSE (AREA<100m2)

20. REFERENCE ACL Cables Price List 2011 Orange Socket Outlets Price List 2012 EATON MCB Price List 2013 (From Richardson Projects Pvt Ltd) BS 7671: 2008 IEE Wiring Regulation 17th Edition