How to Keep Concealed Wiring Cost Lower Even With Rising Prices (With Case Study)

In recent years the prices of PVC conduits have risen significantly. Therefore it becomes crucial to incorporate cost-saving measures into your concealed wiring installations.

For the given purpose, using PVC Reducer is one of the best ways that can save you a lot of money if done right.

PVC Reducer is a conduit fitting used to connect PVC conduit pipes and various other conduit accessories of different diameters together. For example, a 25 to 20 mm reducer can be used to connect two different conduits with diameters of 25 mm and 20 mm.

At the junction point, bunches of wires often branch out in different directions to create various power outlets as needed. In such cases, we no longer need to use the same larger pipe to encase the branched wires, as smaller pipes can easily encase them.

Using a simple and inexpensive reducer can greatly help to lower the installation cost as a smaller conduit is logically cheaper than the larger conduit.

Case Study

concealed wiring diagram for reducer blog

In the following concealed wiring diagram for 1 BHK: 25 mm PVC Conduit Pipes are represented with black color and 20 mm PVC Conduit Pipes are represented with light grey color.

Case 1: When 20 mm PVC Conduit Pipe Is Used For Branched Out PVC Conduit Lines

20 mm PVC Conduit Pipe

 

Total Pieces Required

Length of PVC Conduit

Total Length

8

6 m

48 m

2

13 m

26 m

1

16 m

16 m

1

17 m

17 m

Total length of 20 mm PVC Conduit Pipe required = 107 m + 5% Wastage = 112 m (approx)

Cost of 20 mm Pressfit HMS PVC Conduit Pipe = 46 ₹ / m

Total cost of 20 mm Pressfit HMS PVC Conduit Pipe = 112 x 46 ₹ = 5,152 ₹

 

25 mm PVC Conduit Pipe

 

Total Pieces Required

Length of PVC Conduit

Total Length

1

10 m

10 m

1

31 m

31 m

1

21 m

21 m

1

40 m

40 m

Total Length of 25 mm PVC Conduit Pipe required = 102 m + 5% Wastage = 107 m (approx)

Cost of 25 mm Pressfit HMS PVC Conduit Pipe = 57.5 ₹ / m

Total cost of 25 mm Pressfit HMS PVC Conduit Pipe = 107 x 57.5 ₹ = 6,152.5 ₹

 

25 to 20 mm PVC Reducer

 

12 pieces of the reducer will be required to make 20 mm Pressfit HMS PVC Conduit Pipes compatible with 25 mm metal fan boxes.

Cost of 25 to 20 mm Pressfit PVC Reducer = 4.25 ₹ per piece

Total cost of 25 to 20 mm Pressfit PVC Reducer = 12 x 4.25 ₹ = 51 ₹

Therefore, the total cost of Pressfit HMS PVC Conduit Pipes + Pressfit PVC Reducers will be: 11,355.5 ₹

Case 2: When 25 mm PVC Conduit Pipe Is Used For Branched Out PVC Conduit Lines

25 mm PVC Conduit Pipe

Total Pieces Required

Length of PVC Conduit

Total Length

8

6 m

48 m

2

13 m

26 m

1

16 m

16 m

1

17 m

17 m

1

10 m

10 m

1

31 m

31 m

1

21 m

21 m

1

40 m

40 m

 

Total length of 20 mm PVC conduit pipe required = 209 m + 5% Wastage = 219 m (approx)

Cost of 20 mm Pressfit HMS PVC Conduit Pipe = 57.5 ₹ / m

Therefore, total cost of 20 mm Pressfit HMS PVC Conduit Pipe = 219 x 57.5 ₹ = 12,592.5 ₹

Conclusion

In the given case study, with an extra cost of 51₹ required for 25 to 20 mm Reducers results in savings of 1,237 ₹ (12592.5 ₹ – 11,355.5 ₹ = 1,237 ₹) which is 9.82% of the cost incurred when only 25mm Pressfit HMS PVC conduit pipe is used.

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