摘要:
Continuously transposed conductor cables include a plurality of electrically insulated strands that are formed into two interposed stacks. Each of the plurality of strands may successively and repeatedly taking on. each possible position with a cross-section of the CTC cable. Additionally, an optical fiber may be incorporated into the continuously transposed conductor cable.
摘要:
An electric monitoring device for objects such as cables, lines, ropes, sections, surfaces and housings monitors their integrity. At least one semiconductive layer (10) which is at least partially insulated from the substrate or protective coating (8) is applied on the object to be monitored and connected to an electric monitoring circuit (U) which detects changes in the conductivity of the semiconductive layer.
摘要:
Disclosed is an electrical cable assembly in simplest form comprising at least one conductor (10), at least one insulator (12), and at least one attention getting material and/or a visual reacting material (14), such as a thermochromic material or liquid crystal formulation, which will, visually and/or physically react to certain critical temperature ranges. May give off a response to variations in temperature and/or magnetic and/or electrical fields which are indicative of a hazard and/or fault, or to the direct and/or indirect results of electrical energy behavior, to provide an indication of an electrical overload condition, and/or a malfunction, and/or the incremental stages of hazard experienced by the electrical cable assembly itself, which undergoes on its own, at least one noticeable manifestation, to get your attention.
摘要:
A cable includes a longitudinal structural element including at Ieast one of an electrical conductor and an optical conductor, and a strain sensor arranged within a bending neutral region of the cable and mechanically coupled with the longitudinal structural element. The strain sensor includes an optical fiber coated with at least one coating layer, a release layer surrounding the coating layer, and a protective layer surrounding the release layer. The release layer includes a material selected from a silicone polymer, a fluoropolymer mixture or an extruded polymer containing a slip agent.
摘要:
Die Erfindung bezieht sich auf ein Kabel mit einer Ummantelung und einem Indikatormaterial, das bei einer Beschädigung der Ummantelung zumindest teilweise aus dem Kabel austritt.
摘要:
An electric cable comprising a strain sensor longitudinally extending along the cable and including a strain optical fibre arranged within a bending neutral region surrounding and including a bending neutral longitudinal axis of the electric cable, and at least two longitudinal structural elements, at least one of the at least two longitudinal structural elements being a core comprising an electrical conductor, wherein the strain sensor is embedded in a strain-transferring filler mechanically coupling at least one of the at least two longitudinal structural elements with the strain sensor. With the disclosed cable construction, the strain experienced by the at least one of the at least two longitudinal structural elements is transferred to the strain sensor at least in a strained condition. In the preferred embodiments, the electric cable is a heavy-duty cable. The invention relates also to a method for monitoring the strain, and preferably also the temperature, of an electric cable. Further, the invention is directed to a deformation monitoring system for measuring at least the tensile strain of a plurality of electric cables, and in particular of a plurality of heavy-duty cables.
摘要:
The present invention provides a power cable that comprises a cable core that has at least one power conductor. The cable core defines a longitudinal axis of the cable. A jacket surrounds the cable core and the jacket has an outer surface. A longitudinal duct is coupled to the outer surface of the jacket and extends substantially parallel to the longitudinal axis of the cable core. The longitudinal duct is hollow to receive at least one optical fiber.