DESC:TECHNICAL FIELD

[0001] The present disclosure relates to the field of installing optical fibre cable and, in particular, relates to a method for joining a plurality of telecommunication ducts using electrofusion welding.

BACKGROUND

[0002] With the advancement of science and technology, various modern technologies are being employed for telecommunication purposes. One of the most important modern communication technologies is optical fibre communication. In addition, the optical fibre communication utilizes optical fibre cable to provide communication over long distances. Further, optical fibre cable carries large data in the form of light. Furthermore, optical fibre cables are deployed for underground applications using plastic pipes. In addition, plastic pipes include but may not be limited to HDPE (High-density polyethylene), ABS (acrylonitrile butadiene styrene), uPVC (plasticized polyvinyl chloride), CPVC (post chlorinated polyvinyl chloride), solid wall pipe, structured wall pipe, barrier pipe, and PB-1 (polybutylene). In general, plastic pipes are deployed in many areas of municipal, petroleum, chemical, construction, shipbuilding, telecommunications, electricity, and underground gas pipelines. Conventionally, plastic pipes are fused together using coupler. However, conventional methodology of joining plastic pipes is not efficient. In addition, the conventional methodology for joining plastic pipes has less life span. Further, the conventional methodology for joining plastic pipes has low blowing span. Furthermore, the conventional methodology for joining plastic pipes has reduced blowing efficiency.

[0003] In light of the above stated discussion, there is a need of an advanced method for joining plastic pipes using electrofusion welding.

OBJECT OF THE DISCLOSURE

[0004] A primary object of the present disclosure is to provide a method and an electrofusion coupler to join HDPE plastic pipes using electrofusion welding with increased lifespan.

[0005] Another object of the present disclosure is to provide the method and the electrofusion coupler to join HDPE plastic pipes using electrofusion welding with increased blowing span up to distance of about 4 kilometers.

[0006] Yet another object of the present disclosure is to provide the method and the electrofusion coupler to join HDPE plastic pipes using electrofusion welding with increased blowing efficiency up to distance of about 2 kilometers.

SUMMARY

[0007] In an aspect, the present disclosure provides a method for joining a plurality of pipes using electrofusion thermal coupling. The method includes a set of steps. The set of steps include a first step of cleaning a first end of each of the plurality of pipes to be joined together. In addition, the set of steps includes a second step of identifying a location on each pipe of the plurality of pipes for installation of an electrofusion coupler. Moreover, the set of steps include a third step of placing the electrofusion coupler onto the first end of each of the plurality of pipes to be joined together. Further, the set of steps include a fourth step of connecting a plurality of processor leads onto corresponding plurality of power terminals of the electrofusion coupler. Furthermore, the set of steps include a fifth step of enabling fusion of the first end of each of the plurality of pipes with a first surface of the electrofusion coupler for coupling the plurality of pipes. The coupling is done by supplying power through the power supply for heating and melting the first end of each of the plurality of pipes and the electrofusion coupler. In addition, the set of steps include a sixth step of allowing cooling of an assembly of the fused plurality of pipes and the electrofusion coupler for completion of the joining of the plurality of pipes for a pre-defined cooling time. The location on each pipe of the plurality of pipes is marked with a non-greasy marker. The location is marked on each pipe of the plurality of pipes at half of a total length of the electrofusion coupler. The electrofusion coupler is placed on an area to be fused such that the electrofusion coupler fits over the first end of each of the plurality of pipes. The area to be fused is prepared by making a 90-degree cut orthogonal to axis of the first end of each of the plurality of pipes. The plurality of power terminals facilitates connection of fusion coils of the electrofusion coupler with a power supply. The fusion is performed at a pre-defined temperature range of 170 degree Celsius to 180 degree Celsius. The fusion is performed at a pre-defined voltage of 40 Volts. The fusion is performed at a pre-defined current range of 10.5 Amperes to 11.3 Amperes. The fusion is performed at a pre-defined fusion time of 40 seconds. The method enables increase in lifespan of infrastructure of the plurality of pipes. The method enables increase in blowing span to more than 4 Km and blowing efficiency up to distance of about 2 kilometers.

[0008] In an embodiment of the present disclosure, the first end of each of the plurality of pipes is cleaned using clean water.

[0009] In an embodiment of the present disclosure, the method includes yet another step of scraping each of the plurality of pipes with isopropyl alcohol. The scraping is done after the cleaning of the plurality of pipes.

[0010] In an embodiment of the present disclosure, the location on each pipe of the plurality of pipes is marked to ensure that the first end of each of the plurality of pipes is at a center of the electrofusion coupler.

[0011] In an embodiment of the present disclosure, the pre-defined cooling time is 5 minutes for a 50 millimeter electrofusion coupler. The assembly of the fused plurality of pipes and the electrofusion coupler is allowed to cool naturally in open air.

[0012] In an embodiment of the present disclosure, the assembly of the fused plurality of pipes and the electrofusion coupler is tested for pressure holding capacity at a pressure of 25 bar.

[0013] In an embodiment of the present disclosure, the electrofusion coupler is made of high density polyethylene.

[0014] In another aspect, the present disclosure provides an electrofusion coupler for joining a plurality of pipes. The electrofusion coupler includes a cylindrical body. The cylindrical body includes a first surface and a second surface. In addition, the electrofusion coupler includes a fusion coil positioned on each side of a center of the first surface of the cylindrical body of the electrofusion coupler. Moreover, the electrofusion coupler includes a plurality of power terminals. The plurality of power terminals supply power to the electrofusion coupler for enabling joining of the plurality of pipes. The cylindrical body is made of high density polyethylene. The first surface of the cylindrical body is a smooth surface. The electrofusion coupler enables increase in lifespan of infrastructure of the plurality of pipes. The electrofusion coupler enables increase in blowing span to more than 4 Km and blowing efficiency up to distance of about 2 kilometers.

[0015] In an embodiment of the present disclosure, the electrofusion coupler has a varying thickness increasing from an edge of the electrofusion coupler towards a center of the electrofusion coupler.

[0016] In an embodiment of the present disclosure, the electrofusion coupler has a thickness of 5 millimeters at an edge of the electrofusion coupler and 6.5 millimeters at a center of the electrofusion coupler.

[0017] In an embodiment of the present disclosure, each fusion coil is located 15 millimeters from an edge of the electrofusion coupler and 10 millimeters from a center of the electrofusion coupler on each side of a center of the electrofusion coupler.

[0018] In an embodiment of the present disclosure, each fusion coil on each side of a center of the electrofusion coupler is 15.

[0019] In an embodiment of the present disclosure, the electrofusion coupler has a first diameter of about 40 millimeters.

STATEMENT OF THE DISCLOSURE

[0020] The present disclosure talks about a method for joining a plurality of pipes using electrofusion thermal coupling. The method includes a set of steps. The set of steps include a first step of cleaning a first end of each of the plurality of pipes to be joined together. In addition, the set of steps includes a second step of identifying a location on each pipe of the plurality of pipes for installation of an electrofusion coupler. Moreover, the set of steps include a third step of placing the electrofusion coupler onto the first end of the plurality of pipes to be joined together. Further, the set of steps include a fourth step of connecting a plurality of processor leads onto corresponding plurality of power terminals of the electrofusion coupler. Furthermore, the set of steps include a fifth step of enabling fusion of the first end of the plurality of pipes with a first surface of the electrofusion coupler for coupling the plurality of pipes. The coupling is done by supplying power through the power supply for heating and melting the first end of the plurality of pipes and the electrofusion coupler. In addition, the set of steps include a sixth step of allowing cooling of an assembly of the fused plurality of pipes and the electrofusion coupler for completion of the joining of the plurality of pipes for a pre-defined cooling time. The location on each pipe of the plurality of pipes is marked with a non-greasy marker. The location is marked on each pipe of the plurality of pipes at half of a total length of the electrofusion coupler. The electrofusion coupler is placed on an area to be fused such that the electrofusion coupler fits over the first end of each of the plurality of pipes. The area to be fused is prepared by making a 90-degree cut orthogonal to axis of the first end of each of the plurality of pipes. The plurality of power terminals facilitates connection of fusion/heating coils of the electrofusion coupler with a power supply. The fusion is performed at a pre-defined temperature range of 170 degree Celsius to 180 degree Celsius. The fusion is performed at a pre-defined voltage of 40 Volts. The fusion is performed at a pre-defined current range of 10.5 Amperes to 11.3 Amperes. The fusion is performed at a pre-defined fusion time of 40 seconds. The method enables increase in lifespan of infrastructure of the plurality of pipes. The method enables increase in blowing span to more than 4 Km and blowing efficiency up to distance of about 2 kilometers.

BRIEF DESCRIPTION OF FIGURES

[0021] Having thus described the disclosure in general terms, reference will now be made to the accompanying figures, wherein:

[0022] FIG. 1 illustrates a flowchart describing a method for joining a plurality of pipes using electrofusion thermal coupling, in accordance with an embodiment of the present disclosure; and

[0023] FIG. 2 illustrates an electrofusion coupler for joining a plurality of pipes, in accordance with another embodiment of the present disclosure.

[0024] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.

DETAILED DESCRIPTION

[0025] Reference will now be made in detail to selected embodiments of the present disclosure in conjunction with accompanying figures. The embodiments described herein are not intended to limit the scope of the disclosure, and the present disclosure should not be construed as limited to the embodiments described. This disclosure may be embodied in different forms without departing from the scope and spirit of the disclosure. It should be understood that the accompanying figures are intended and provided to illustrate embodiments of the disclosure described below and are not necessarily drawn to scale. In the drawings, like numbers refer to like elements throughout, and thicknesses and dimensions of some components may be exaggerated for providing better clarity and ease of understanding.

[0026] It should be noted that the terms "first", "second", and the like, herein do not denote any order, ranking, quantity, or importance, but rather are used to distinguish one element from another. Further, the terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Further, electrofusion coupler and coupler denote the same electro fusion coupler as mentioned in the subject matter of the application and the two terms are used interchangeably to denote the same coupler.

[0027] FIG. 1 illustrates a flowchart 100 describing a method for joining a plurality of pipes using electrofusion thermal coupling, in accordance with an embodiment of the present disclosure. The method relates to a process for joining optical fiber cabling ducts or any other type of pipes using electrofusion thermal coupling. The optical fiber cabling ducts correspond to Permanently Lubricated (PLB) High Density Polyethylene (HDPE) ducts.

[0028] The method includes a set of steps. The flow chart 100 initiates at step 102. Following step 102, at step 104, the method includes a first step of cleaning a first end of each of the plurality of pipes to be joined together. The first end of each of the plurality of pipes corresponds to an end which needs to be fused together. The first end to be cleaned corresponds to an outer circumference of the plurality of pipes and an outer portion of the plurality of pipes having a particular amount of length. In an embodiment of the present disclosure, the plurality of pipes includes but may not be limited to HDPE (High-density polyethylene), ABS (acrylonitrile butadiene styrene), and uPVC (plasticized polyvinyl chloride). In addition, the plurality of pipes includes CPVC (post chlorinated polyvinyl chloride), solid wall pipe, structured wall pipe, barrier pipe, PB-1 (polybutylene), and the like. In an embodiment of the present disclosure, the first end of each of the plurality of pipes are cleaned by removing dirt, mud, and debris from the first end of each of the plurality of pipes. In an embodiment of the present disclosure, the first end of each of the plurality of pipes is cleaned using clean water. In addition, clean water is utilized to clean surface of the first end of each of the plurality of pipes. In an embodiment of the present disclosure, the method includes yet another step of scraping each of the plurality of pipes. The scraping is done after the cleaning of the plurality of pipes. In an embodiment of the present disclosure, the first end of each of the plurality of pipes undergoes scrapping. In an embodiment of the present disclosure, the first end of each of the plurality of pipes is scrapped using isopropyl alcohol. In another embodiment of the present disclosure, the first end of each of the plurality of pipes is scrapped using any suitable material. In general, plastic pipes are scrapped to remove bacteria from pipe surface. In addition, the area to be fused is prepared by making a 90-degree cut orthogonal to axis of the first end of each of the plurality of pipes. In an embodiment of the present disclosure, the cleaning is done to remove smoothness.

[0029] At step 106, the method includes a second step of identifying a location on each pipe of the plurality of pipes. In addition, the location is identified to enable installation of an electrofusion coupler onto the first end of each of the plurality of pipes. The location on each pipe of the plurality of pipes is marked with a non-greasy marker. The location is marked on each pipe of the plurality of pipes at half of a total length of the electrofusion coupler. In another embodiment of the present disclosure, length of mark onto the first end of each of the plurality of pipes may vary. In an embodiment of the present disclosure, the location on each pipe of the plurality of pipes is marked to ensure that the first end of each of the plurality of pipes is at a center of the electrofusion coupler. In an embodiment of the present disclosure, the marking on the ends of the plurality of pipes are done for stab depth purposes to ensure that the plurality of pipes are inserted into the center of the electrofusion coupler. In an embodiment of the present disclosure, the electrofusion coupler has an outer surface. In addition, the outer surface is modified to mark center of the electrofusion coupler. In an example, the electrofusion coupler has an inner ring at the center of the electrofusion coupler. In addition, the inner ring at the center of the electrofusion coupler is removed to prevent obstruction in movement of optical fibre cable.

[0030] The electrofusion coupler is placed on an area to be fused such that the electrofusion coupler fits over the first end of each of the plurality of pipes. In another embodiment of the present disclosure, the marker utilized to mark the location of the electrofusion coupler onto the first end of each of the plurality of pipes is any suitable marker. In an example, the first end of each of the plurality of pipes is marked by an operator. In addition, the operator is any person or individual that prepares pipe ends. In general, electrofusion coupler is pipe or tube of short length. In addition, electrofusion coupler is used to connect two pipes. Further, electrofusion coupler connects two pipes through one or more processes. Furthermore, one or more processes include welding, brazing, soldering and the like.

[0031] At step 108, the method includes a third step of placing the electrofusion coupler onto the first end of each of the plurality of pipes to be joined together. In addition, the electrofusion coupler is placed at an area where the first end of each of the plurality of pipes is fused. Further, the area at which the first end of each of the plurality of pipes fused is prepared by making 90-degree orthogonal cut to axis of the first end of each of the plurality of pipes. Furthermore, the area at which the first end of each of the plurality of pipes fused is cleaned and scrubbed to remove smoothness. Moreover, the first ends of the plurality of the pipes are connected with the electrofusion coupler. In an embodiment of the present disclosure, the electrofusion coupler is restrained after placement onto the first end of each of the plurality of pipes. In addition, the electrofusion coupler is restrained using an approved restraint device.

[0032] In an embodiment of the present disclosure, the electrofusion coupler is moved onto the first end of each of the plurality of pipes using rubber mallet. In another embodiment of the present disclosure, the electrofusion coupler is moved onto the first end of each of the plurality of pipes using a metal hammer. In yet another embodiment of the present disclosure, the electrofusion coupler is moved onto the first end of each of the plurality of pipes using woodblocks. In yet another embodiment of the present disclosure, the electrofusion coupler is moved onto the plurality of pipes using any suitable restraining device. In an example, an operator places the electrofusion coupler onto the first end of each of the plurality of pipes. In addition, the operator ensures that stab depth mark is properly located and visible before placement of the electrofusion coupler. The first end of each of the plurality of pipes is inserted into the electrofusion coupler from a first side and second side of the electrofusion coupler. In an example, a first end of a first pipe is inserted into the first side of the electrofusion coupler and a first end of a second pipe to be joined with the first pipe is inserted into the second side of the electrofusion coupler. The insertion is done such that a length of insertion of the pipes inside the electrofusion coupler is till the stab depth mark on each of the first end of the plurality of pipes.

[0033] At step 110, the method includes a fourth step of connecting a plurality of processor leads onto corresponding plurality of power terminals of the electrofusion coupler. The plurality of processor leads are connected to an external power supply. The plurality of power terminals facilitates connection of a fusion/heating coil located on each side of a center of the electrofusion coupler with a power supply. In an embodiment of the present disclosure, the processor leads are connected with the electrofusion coupler to perform bar-code scanning. In an example, the electrofusion coupler contains barcode. In an embodiment of the present disclosure, the bar-code scanning facilitates initialization of electrofusion welding. In an example, the processor leads facilitate to connect the electrofusion coupler with an electrofusion welding machine. In an embodiment of the present disclosure, the electrofusion welding facilitates to connect the first end of each of the plurality of pipes with the electrofusion coupler.

[0034] At step 112, the method includes a fifth step of enabling fusion of the first end of each of the plurality of pipes with a first surface of the electrofusion coupler for coupling the plurality of pipes. The coupling is done by supplying power through the power supply for heating and melting the first end of each of the plurality of pipes and the electrofusion coupler. In an embodiment of the present disclosure, the power is supplied by an external power supply. In an embodiment of the present disclosure, an outer surface of each of the plurality of pipes is fused with an inner surface of the electrofusion coupler. In addition, the electrofusion welding welds the electrofusion coupler onto the first end of each of the plurality of pipes. In addition, the electrofusion coupler has built-in electric heating elements to weld joint together. The built-in electric heating elements correspond to the fusion coils. In an embodiment of the present disclosure, the fusion coils heat up and melt inside the electrofusion coupler and outside the pipes to produce a strong homogeneous joint.

[0035] In an embodiment of the present disclosure, the electrofusion welding is performed by supplying voltage and current for fix time. The fusion is performed at a pre-defined temperature range of 170 degree Celsius to 180 degree Celsius. The fusion is performed at a pre-defined voltage of 40 Volts. In an embodiment of the present disclosure, the pre-defined voltage supplied during the electrofusion welding may vary. The fusion is performed at a pre-defined current range of 10.5 Amperes to 11.3 Amperes. In an embodiment of the present disclosure, the pre-defined current supplied during the electrofusion welding may vary. The fusion is performed at a pre-defined fusion time of 40 seconds. In an embodiment of the present disclosure, the pre-defined fusion time for the electrofusion welding may vary. In an example, the electrofusion welding is utilized to join PLB HDPE pipes. In another example, the electrofusion welding is utilized to join any suitable pipes. Further, the processor leads are disconnected from the electrofusion coupler after completion of fusion cycle after the pre-defined fusion time.

[0036] At step 114, the method includes a sixth step of allowing cooling of an assembly of the fused plurality of pipes and the electrofusion coupler. The cooling is done for enabling completion of the joining of the plurality of pipes. The cooling is performed for a pre-defined cooling time. In an embodiment of the present disclosure, the pre-defined cooling time for the electrofusion coupler depends upon size of the electrofusion coupler. In an embodiment of the present disclosure, the pre-defined cooling time is 5 minutes for a 40 millimeter size electrofusion coupler. In an embodiment of the present disclosure, the electrofusion coupler is allowed to cool naturally in open air. In another embodiment of the present disclosure, the cooling may be performed by any other suitable method. In an embodiment of the present disclosure, the electrofusion coupler is made of high density polyethylene.

[0037] In an embodiment of the present disclosure, the electrofusion coupler with joint plurality of pipes is tested for pressure holding capacity at a pressure of 25 bar. In another embodiment of the present disclosure, pressure value for testing pressure holding capacity may vary. In an embodiment of the present disclosure, material and thickness of the electrofusion coupler is selected to ensure that the electrofusion coupler can withstand the 25 bar pressure. The flow chart 100 terminates at step 116.

[0038] FIG. 2 illustrates an electrofusion coupler 200 for joining a plurality of pipes, in accordance with another embodiment of the present disclosure. FIG. 2 illustrates a view of an inner portion or a side view of an internal portion of the electrofusion coupler 200. The electrofusion coupler 200 is used for performing the method described in FIG. 1. The electrofusion coupler 200 has built-in electric heating elements to weld joint together. The electrofusion coupler 200 is made of high density polyethylene material. In an embodiment of the present disclosure, the electrofusion coupler 200 may be made of any other suitable material. The electrofusion coupler 200 is used for joining optical fiber cabling ducts or any other type of pipes using electrofusion thermal coupling. The optical fiber cabling ducts correspond to Permanently Lubricated (PLB) High Density Polyethylene (HDPE) ducts.

[0039] The electrofusion coupler 200 includes a cylindrical body 202. The cylindrical body 202 includes a first surface and a second surface. The first surface is an inner curved surface of the cylindrical body 202 of the electrofusion coupler 200. The second surface is an outer curved surface of the cylindrical body 202 of the electrofusion coupler 200. The cylindrical body 202 is a hollow cylindrical body. In addition, the cylindrical body 206 is made of high density polyethylene material. Moreover, the first surface of the cylindrical body 202 is a smooth surface.

[0040] Further, the electrofusion coupler 200 includes a fusion/heaintg coil positioned on each side of a center of the first surface of the cylindrical body 202 of the electrofusion coupler 200. In an embodiment of the present disclosure, the electrofusion coupler 200 includes two fusion coils placed adjacent to each other and equidistant from the center of the first surface of the cylindrical body 202 of the electrofusion coupler 200. The two fusion coils include a first fusion coil 204 and a second fusion coil 206. The fusion coil is placed in an inner part of the cylindrical body 202 of the electrofusion coupler 200. In an embodiment of the present disclosure, each fusion coil is located 15 millimeters from an edge of the electrofusion coupler 200 and 10 millimeters from a center of the electrofusion coupler 200 on each side of a center of the electrofusion coupler 200. In an embodiment of the present disclosure, each fusion coil may be located at any suitable distance from an edge of the electrofusion coupler 200 and a center of the electrofusion coupler 200 on each side of a center of the electrofusion coupler 200. In an embodiment of the present disclosure, each fusion coil on each side of a center of the electrofusion coupler is 15. In another embodiment of the present disclosure, each fusion coil on each side of a center of the electrofusion coupler 200 may vary.

[0041] Furthermore, the electrofusion coupler 200 includes a plurality of power terminals. The plurality of power terminals includes a first power terminal 208 and a second power terminal 210. The plurality of power terminals are positioned on the second surface of the cylindrical body 202 of the electrofusion coupler 200. The plurality of power terminals supply power to the electrofusion coupler 200 for enabling joining of the plurality of pipes. The electrofusion coupler 200 enables increase in lifespan of infrastructure of the plurality of pipes. The electrofusion coupler 200 enables increase in blowing span to more than 4 Km and blowing efficiency up to distance of about 2 kilometers.

[0042] In an embodiment of the present disclosure, the electrofusion coupler 200 has a varying thickness. In an embodiment of the present disclosure, the thickness increases from an edge of the electrofusion coupler 200 towards a center of the electrofusion coupler 200. In an embodiment of the present disclosure, the distance between the inner curved surface and the outer curved surface denote the thickness of the electro fusion coupler. The distance between inner curved surface and outer curved surface of the coupler, at the edge of the coupler is D1 and the distance between the inner curved surface and outer curved surface of the coupler, at the centre of the coupler is D2. In an embodiment of the present disclosure, the electrofusion coupler 200, D2 is greater than D1. In an embodiment of the present disclosure, D1 is 5 millimeters at an edge of the electrofusion coupler 200 and D2 is 6.5 millimeters at a center of the electrofusion coupler 200. In another embodiment of the present disclosure, the electrofusion coupler 200 may have any suitable thickness at an edge of the electrofusion coupler 200 and at a center of the electrofusion coupler 200. In an embodiment of the present disclosure, the electrofusion coupler 200 has a first diameter of about 40 millimeters. The first diameter is an inner diameter of the electrofusion coupler 200. In another embodiment of the present disclosure, the electrofusion coupler 200 may have any suitable first diameter of about 40 millimeters.

[0043] The present disclosure provides numerous advantages over the prior art. The present disclosure provides an improved method and the electrofusion coupler for joining pipe ends of the plurality of pipes using electrofusion welding with increased lifespan. In addition, the method and the electrofusion coupler increases blowing span of pipe ends of the plurality of pipes up to distance of about 4 kilometers. Further, the method and the electrofusion coupler increases blowing efficiency of pipe ends of the plurality of pipes up to distance of about 2 kilometers.

[0044] The foregoing descriptions of pre-defined embodiments of the present technology have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present technology to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present technology and its practical application, to thereby enable others skilled in the art to best utilize the present technology and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation.

,CLAIMS:What we claim is:

1. A method for joining a plurality of pipes using electrofusion thermal coupling, the method comprises:

cleaning a first end of each of the plurality of pipes to be joined together;

placing the electrofusion coupler (200) onto the first end of each of the plurality of pipes to be joined together, wherein the electrofusion coupler (200) is placed on an area to be fused such that the electrofusion coupler (200) fits over the first end of each of the plurality of pipes, wherein the area to be fused is prepared by making a 90-degree cut orthogonal to axis of the first end of each of the plurality of pipes;

connecting a plurality of processor leads onto corresponding plurality of power terminals (208, 210) of the electrofusion coupler (200), wherein the plurality of power terminals (208, 210) facilitate connection of fusion coils of the electrofusion coupler (200) with a power supply;

enabling fusion of the first end of each of the plurality of pipes with a first surface of the electrofusion coupler (200) for coupling the plurality of pipes by supplying power through the power supply for heating and melting the first end of the plurality of pipes and the electrofusion coupler (200),

allowing cooling of an assembly of the fused plurality of pipes and the electrofusion coupler (200) for completion of the joining of the plurality of pipes, wherein the cooling is done for a pre-defined cooling time,

2. The method as claimed in claim 1, wherein the first end of each of the plurality of pipes is cleaned using clean water.

3. The method as claimed in claim 1, further comprising scraping the first end of each of the plurality of pipes with isopropyl alcohol, wherein the scraping is done after the cleaning of the plurality of pipes.

4. The method as claimed in claim 1, wherein the location on each pipe of the plurality of pipes is marked to ensure that the first end of each of the plurality of pipes is at a center of the electrofusion coupler (200).

5. An electrofusion coupler (200) for joining a plurality of telecommunication cable ducts wherein the coupler comprises of:
a cylindrical body (202) wherein the cylindrical body comprises an inner curved surface and an outer curved surface surface,
a plurality heating coils positioned on each side of a center of the inner curved surface of the cylindrical body (202) of the electrofusion coupler (200); and
a plurality of power terminals (208, 210) for supplying electrical energy to the heating coils of the electrofusion coupler (200), positioned on the outer curved surface of the cylindrical body (202) of the electrofusion coupler (200),
wherein, the distance between inner curved surface and outer curved surface at the edge of the coupler is D1 and distance between inner curved surface and outer curved surface at the centre of the coupler is D2, wherein, D2>D1 and the distance increases constantly from edge to centre of the coupler (200) on either side of the centre of the coupler (200).

6. The electrofusion coupler (200) as claimed in claim 5, wherein the distance D1 between inner curved surface and outer curved surface at edge of the coupler (200) is 5 millimeters and the distance D2 between inner curved surface and outer curved surface at centre of the coupler (200) is 6.5 millimeters.

7. The electrofusion coupler (200) as claimed in claim 5, wherein the electrofusion coupler (200) is made of high density polyethylene.

8. The electrofusion coupler (200) as claimed in claim 5, wherein the ducts that are joined by the electrofusion coupler are made of high density polyethylene.

9. The electrofusion coupler (200) as claimed in claim 5, wherein the inner curved surface of the electrofusion coupler is a single curved surface.

10. The electrofusion coupler (200) as claimed in claim 5, wherein each heating coil is located 15 millimeters from an edge of the electrofusion coupler (200) and 10 millimeters from a center of the electrofusion coupler (200) on each side of a center of the electrofusion coupler (200).

11. The electrofusion coupler (200) as claimed in claim 5, wherein number of coils in each heating coil on each side of a center of the electrofusion coupler (200) is 15.

12. The electrofusion coupler (200) as claimed in claim 5, wherein the temperature of fusion of electrofusion coupler with telecommunication cable ducts is between 170 and 180 Celsius.