Assembly for relining a junction between a branch pipeline and a main pipeline, and for relining a part of or the whole branch pipeline

An apparatus for curing a liner of a pipeline, the liner including a resin which is curable by exposure to electromagnetic radiation of a specific wavelength or a specific wavelength range, the apparatus comprising:

• a housing defining opposite first and second ends, an outer wall, and an inner wall defining a substantially unobstructed through-going passage extending longitudinally through the housing between the first and second ends;
• a pair of power supply wires for the supply of electrical power to the apparatus and extending from the first end of the housing;
• a plurality of light emitting diodes configured to irradiate electromagnetic radiation of the specific wavelength or the specific wavelength range, the plurality of light emitting diodes being positioned about the housing, the plurality of light emitting diodes being connected through an electronic circuit to the pair of power supply wires;
• wherein the plurality of light emitting diodes are connected in thermal conductive relationship to heat dissipating elements freely exposed at the inner wall of the housing in the through-going passage of the housing for allowing a stream of cooling fluid to pass through the passage for dissipating heat from the heat dissipating elements and cooling the light emitting diodes;
• wherein the housing defines an innermost wall dividing the substantially unobstructed through-going passage into an inner passage centrally located within the substantially unobstructed through-going passage and extending substantially between the first and second ends, and, an outer passage defined between the inner wall and the innermost wall and coaxially enclosing the inner passage.