Staircase Wiring
2 – WIRING OF LIGHT/FAN CIRCUIT USING TWO WAY SWITCHES (STAIRCASE WIRING)
Aim :
To wire up a circuit with one lamp controlled simultaneously from 2 places as per the given layout diagram in surface conduit system of wiring & check the conditions .Also Prepare the Estimation to finish the work.
CONDITIONS :
S1↑ S2↑ L Bright
S1↑ S2↓ L Dark
S1↓ S2↑ L Dark
S1↓ S2↓ L Bright
Tools Required:
Screw driver, line tester, pocker ,hammer, wire stripper, plier, Hack saw.
Estimation
| Sl.No | Name of Material | Specification | Quantity | Unit |
| 1 | PVC Conduit | 20 mm | ||
| 2 | PVC insulated Copper wire | 1 mm2, , 1100 V grade | ||
| 3 | Flush Type SPST Switch | 6A, 240 V | ||
| 4 | Switch box(Gang Box) | 75×50×25 mm | ||
| 5 | Steady batten lamp holder | 6 A, 250 V | ||
| 6 | Incandescent Bulb | 60 W, 240 V | ||
| 7 | Saddle clips | 20 mm | ||
| 8 | PVC Round block | 75 X 25 mm | ||
| 9 | 3 way Junction box | 20 mm | ||
| 10 | Neutral Link | 6 A, 240 V | ||
| 11 | Kitkat type fuse unit | 6 A, 240 V | ||
| 12 | Screws | 13×4mm | ||
| 16×8mm | ||||
| 30×8mm |
Procedure :
- Cut the Conduits in the required length (20cm) using Hack saw.
- Fix the conduits ,junction box ,switch box in required positions as per the lay out using saddles and screws.
- Run the wire through conduits, as per the given circuit diagram & then fix the Round block,switches,holder in required positions using screws.
- Check the circuit before applying the supply
- Give the single phase supply through a fuse and neutral link
- Check the conditions
Circuit Diagram :
Layout
RESULT :
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