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.NoName of MaterialSpecificationQuantityUnit
1PVC Conduit20 mm  
2PVC insulated Copper wire1 mm2, , 1100 V grade  
3Flush Type SPST Switch6A, 240 V  
4Switch box(Gang Box)75×50×25 mm  
5Steady batten lamp holder6 A, 250 V  
6Incandescent Bulb60 W, 240 V  
7Saddle clips20 mm  
8PVC Round block75 X 25 mm  
93 way Junction box20 mm  
10Neutral Link6 A, 240 V  
11Kitkat type fuse unit    6 A, 240 V  
12Screws13×4mm  
  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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