Abstract: A modular system for the connection of an external communication network to a user network of a building includes: at least one user module including: i) at least one passage opening of a connection cable of the user network including a plurality of optical fibers associated with respective users and ii) a plurality of adapters associated with respective optical fibers of the connection cable of the user network, and at least one operator module including: i) at least one inlet opening of at least one connection cable to the external communication network including a plurality of optical fibers and ii) at least one outlet opening of a plurality of fiber optic connection elements connected to the external communication network and provided with a connector at a terminal end thereof.

Abstract: An apparatus for coloring optical fibers, includes: a first reservoir for containing a natural coating material to be applied onto an optical fiber being drawn; a second reservoir for containing a colorant to be mixed with the natural coating material; a mixer in fluid communication with the first and second reservoirs to receive a first flow of natural coating material and a second flow of colorant and to mix the first and second flows to obtain a colored coating material; a coating die in fluid communication with the mixer to receive the flow of colored coating material and to apply it onto the optical fiber being drawn.

Abstract: A method of jointing two high voltage impregnated cables may include exposing an impregnated cable insulation layer of cable ends by removing at least one protecting layer and an outer semiconducting layer; exposing a terminal length of conductors of the cable ends by cutting a portion of the impregnated cable insulation layer and by removing an inner semiconducting layer; mechanically and electrically connecting the conductors; filling at least in part a space left by the removed impregnated cable insulation layer with a conductive insert; providing an intermediate semiconducting layer to surround the conductive insert and abutting on portions of cable insulation layers adjacent to the conductive insert; applying a stratified insulation, impregnated with a second viscous compound, overlapping the exposed impregnated cable insulation layer of the cable ends and covering the intermediate semiconducting layer; electrically screening the conductors; and tightly containing the first and/or second viscous compound

Abstract: A composite flat cable, having in cross-section a major side, may include an outer sheath; two main electrical conductors; and two ducts for fluid circulation configured to circulate fluid. A composite flat cable may include two ducts configured to circulate fluid; a first main electrical conductor on a first side of the two ducts; a second main electrical conductor on a second side of the two ducts; and a sheath around the two ducts, the first main electrical conductor, and second main electrical conductor. A solar cogeneration plant may include at least one cell configured to produce electric current, connected to a plant for distribution of electrical energy and of heated fluid by a composite flat cable.

Abstract: An earth cable adapted for being laid underground includes at least one optical fiber, a thermally conducting polymeric layer surrounding the at least one optical fiber, and copper conductors arranged in a radially-external position with respect to the thermally conducting polymeric layer.

Abstract: An electric power transmission cable includes at least one first section provided with cable armor made of a first metallic material, and at least one second section provided with a cable armor made of a second metallic material, wherein the second metallic material has ferromagnetic properties substantially lower than those of the first metallic material.

Abstract: The present invention embraces an optical transition box for housing the connection between a riser cable and a drop cable of an optical access network. The box has a base, which itself typically includes: a bottom for housing the excess lengths of the optical fibers of the riser cable and of the drop cable, a first sidewall and a splice-holder element for housing the splices between the optical fibers. Typically, the splice-holder element is fixed to the first sidewall and overhangs above the bottom. A distance not less than the diameter of an optical fiber is typically provided between the bottom and the splice-holder element.

Abstract: A screen connector (10) for electrical cables and/or for jointing assemblies for electrical cables, comprises a conductive shield sock (11) extending about a longitudinal axis (X-X) and adapted to be coupled to a conductive screen of at least one electrical cable or to at least one jointing assembly for electrical cables. A shrinkable protective sleeve (12) is arranged in a radially outer position with respect to said conductive shield sock (11) and at least one removable support element (13) is arranged in a radially inner position with respect to said conductive shield sock (11) to hold said conductive shield sock (11) and said shrinkable protective sleeve (12) in a radially expanded state. A jointing assembly for electrical cables is also disclosed, said jointing assembly being either in a radially expanded state or radially collapsed onto an end portion of at least one electrical cable.

Abstract: A jointing assembly (10) for electrical cables (100a, 100b) comprises a connector (11) extending about a longitudinal axis (X-X) and provided, at at least one end portion (11a, 11b) thereof, with at least one housing seat (12a, 12b) for at least one free end of a respective electrical cable (100a, 100b). A shrinkable sleeve (20) is coaxially arranged in a radially outer position with respect to said connector (11). Said shrinkable sleeve (20) is held in a radially expanded state by at least one removable support element (30a, 30b) radially interposed between said connector (11) and said shrinkable sleeve (20).

Abstract: An optical branching device suitable for branching optical fibers extracted through an access window cut in a sheath of an optical cable. The optical branching device includes a central channel configured to house a portion of the optical cable, at least one lateral channel which branches from the central channel and which is configured to house at least one of the optical fibers, and a housing suitable for receiving a fixing member for fixing the device to the optical cable. The housing is in a non-projecting position relative to the lateral channel along a longitudinal direction of the central channel.

Abstract: A process for manufacturing a jointing assembly (10) for medium or high voltage electrical cables (100a, 100b), comprises: forming a tubular element (25) made from a semi-conductive material; cutting out of said tubular element (25) a first cylindrical element (21) having a first length and a second cylindrical element (22a, 22b) having a second length; machining an end portion (23a, 23b) of said first cylindrical element (21) and an end portion (24a, 24b) of said second cylindrical element (22a, 22b) to provide them with an at least partially rounded profile; arranging said first cylindrical element (21) at a radially inner surface of an elastomeric sleeve (20) made from a dielectric material and extending about a longitudinal axis (X-X); arranging said second cylindrical element (22a, 22b) at a free end portion (20a, 20b) of said elastomeric sleeve (20), and spaced apart from said first cylindrical element (21), with the rounded end portion (24a, 24b) of said second cylindrical element (22a, 22b) facing the

Abstract: It is disclosed a high voltage electric cable having a longitudinal axis and comprising a conductive core having a first cross section area. The conductive core comprises a solid, central conductor. It further comprises at least three solid, sector conductors stranded around the central conductor. The central conductor has a second cross section area and the ratio between the second and first cross section areas is of from 1/130 to 1/20.

Abstract: It is disclosed a process for manufacturing a submarine optical communications cable. The process comprises the following steps: providing an optical core; providing a reinforcing structure consisting of at least one layer of wires onto the optical core, at least part of the wires being clad with a first metallic material; extruding an outer layer onto the structure, the outer layer being made of a second metallic material having a softening point substantially similar to the softening point of the first metallic material; and cooling the outer layer immediately after extrusion.

Abstract: A telecommunication cable is equipped with at least one optical fiber coated by a tight buffer layer made from a polymeric material having an ultimate elongation equal to or lower than 100% and an ultimate tensile strength equal to or lower than 10 MPa. The above combination of features of the polymeric material forming the buffer layer provides an optical fiber which is effectively protected during installation operations and during use, and at the same time can be easily stripped by an installer without using any stripping tools, simply by applying a small pressure with his fingertips and a moderate tearing force along the fiber axis.

Abstract: It is disclosed a process for manufacturing a fiber optic overhead ground wire cable. The process comprising the following steps: providing an optical core; providing a reinforcing structure consisting of at least one layer of wires onto the optical core, at least part of the wires being clad with a first metallic material; extruding an outer layer onto the reinforcing structure, the outer layer being made of a second metallic material having a softening point substantially similar to the softening point of the first metallic material; and cooling the outer layer immediately after extruding.

Abstract: A system for monitoring a plurality of components distributed in different space locations, includes: at least one optical fiber path; an optical radiation source adapted to inject optical radiation into the at least one optical fiber path; at least one first and at least one second optical branches branching from the at least one optical fiber path and adapted to spill respective portions of the optical radiation, the first and second optical branches being adapted to be operatively associated with a respective component to be monitored.

Abstract: A flat power cable includes at least two cores of which at least two cores include a power transmissive insulated element and a protective sheath disposed in a radially external position with respect to the power transmissive insulated element. The cores are disposed on a common transversal axis and an outer armour contains the cores. Inside the armour, adjacent cores and an internal surface of the armour delimit empty interstitial spaces. The flat cable includes swellable fillers disposed in the empty interstitial spaces. In a transversal section of the cable, each of the swellable fillers, in an unswelled configuration, presents a cross section area smaller than a cross section area of the respective empty interstitial space. The swellable fillers swell by absorbing fluid the flat power cable is submerged in and enlarge, filling all the interstices, pushing against the cores and the armour and constraining the cable in its flat configuration.

Abstract: A process for manufacturing an optical fiber includes: drawing an optical waveguide from a glass preform; applying a layer of a first coating material on the optical waveguide; curing the first coating layer material to obtain a first coating layer; applying a layer of a second coating material onto the first coating layer; applying a layer of colored coating material onto the second coating layer; curing the second coating material and the colored coating material in a single step to obtain a second coating layer superposed on the first coating layer and a colored coating layer superposed on the second coating material layer, the obtained second coating layer having an elastic modulus higher than that of the first coating layer and lower than that of the colored coating layer. An optical fiber and an apparatus for producing it are also provided.

Abstract: An optical fiber includes an optically transmissive element; at least one curable colored layer surrounding the optically transmissive element; and an additional removable colored layer surrounding and homogeneously covering the curable colored layer. The presence of the additional removable colored layer improves identifiability of the fiber, especially when the latter is included in an optical cable together with other fibers.

Abstract: A method of making an optical fiber includes the steps of: providing an optical fiber preform; heating an end portion of the optical fiber preform so as to obtain a softened preform end portion; drawing the softened preform end portion to form the optical fiber; applying to the optical fiber a substantially sinusoidal spin having a spin amplitude and a spin period, the substantially sinusoidal spin being transmitted to the softened preform end portion, and determining an actual spin amplitude applied to the fiber, wherein the actual spin amplitude is the spin amplitude applied in correspondence to the softened preform end portion. The spin amplitude and spin period of the substantially sinusoidal spin are selected in such a way that a ratio of the actual spin amplitude to the spin period is in the range of approximately 0.8 to approximately 1.4 turns/m2.