A system for detecting insulation defects in an underground power cable comprising one or more single conductors surrounded by an electrically conducting shield. The system comprises one or more external sensors clamped onto the outside of or arranged in the proximity of the power cable. The sensors are configured to provide two or more current measurements from the outside of the power cable without being electrically connected to any of the one or more conductors of the power cable. A signal processing unit of the system is adapted to use a mathematical statistical model that processes measurements made by the sensors to identify if the current measurements are caused by a partial discharge event from a leakage structure in the power cable.

A system for detecting insulation defects in an underground power cable comprising one or more single conductors surrounded by an electrically conducting shield. The system comprises one or more external sensors clamped onto the outside of or arranged in the proximity of the power cable. The sensors are configured to provide two or more current measurements from the outside of the power cable without being electrically connected to any of the one or more conductors of the power cable. A signal processing unit of the system is adapted to use a mathematical statistical model that processes measurements made by the sensors to identify if the current measurements are caused by a partial discharge event from a leakage structure in the power cable.

Systems and methods for designing and assembling form boards with attached wire routing devices for use in wire bundle assembly. The assembly method comprises: (a) establishing a coordinate system of a form board having a multiplicity of holes; (b) using a computer system to determine locations of form board devices of different types with reference to the coordinate system of the form board based on engineering data specifying a wire bundle configuration; and (c) fastening the form board devices of different types to respective holes of the form board having centers closest to respective locations determined in step (b). The form board devices may be inserted robotically or manually.

A central electrical cabinet unit is designed and assembled as a pre-assembled unit for installation at a client site for designing/building a custom electronic data center cabinet design or layout. The pre-assembled unit includes a central patch panel in a central cabinet for electronic devices. The central patch panel includes specified connections for components using the specified connections. Central patch panel connecting cables with central patch panel connectors include reciprocal connectors are connectible to client specified connections in a client cabinet. Power cables and electrical cables have electrical connections to the central patch panel. The electrical cables are configured to have reciprocal connectors connectable to compatible client electrical connectors on client electrical cables in the client cabinet, thereby the central patch panels in the central cabinet are a pre-assembled unit for installation at a client site and for connecting client cabinets thereto.

The template-marking tool for installing conduit may comprise a template for locating the center of a new conduit aperture on a junction box. The template may be pressed against a wall of the junction box and may slide along the junction box until a first mark shows at one of a plurality of alignment slots. A second mark may be made on the junction box at one of a plurality of centering apertures. The new conduit aperture may be drilled at the second mark to create an aperture for accepting a conduit connector that an individual conduit will couple to. A plurality of indicia may be adapted to guide a user in selecting one of the plurality of centering apertures on the template based upon the size of a conduit support strut and the diameter of the individual conduit.

A machine forms a whip from a length of cable. The machine includes a clamping assembly, a notching assembly, and a cutting assembly. The clamping assembly includes a pad which can be move into and out of a cable travel space. The notching assembly includes a notching saw which cuts an outer jacket of the cable in a direction substantially parallel to the longitudinal axis. Movement of the pad also causes movement of the notching saw to move into the cable travel space or into a raised position. The cutting assembly includes a cutting tool which transversely cuts the conductors of the cable.

The methods and devices described herein are for repairing a break in a pipe and also provide means for adding additional pipes to an existing pipe. According to a first embodiment, a pair of end connectors are installed on the broken ends of a pipe and then a sleeve is slid over the gap between the two broken ends. According to a second embodiment, two half cylinder connector pieces are placed around a broken pipe and then a cylindrical sleeve is placed over the top. According to a third embodiment, two half cylinder connector pieces are glued to each other and the broken pipe, one of the half cylinders having a branch for installing an additional pipe to the pipe system.

A method for the application of a tubular hull (120) to an electric cable (100) is provided. The tubular hull (120) comprises a plurality of ring-shaped elements (102) and/or of tube-shaped elements (101). The method comprises at least the following steps: a.) pre-arranging a part of the tubular hull (120) by means of a tubular hull application unit (200); b.) inserting the electric cable (100) into the tubular hull application unit (200) and into the pre-arranged part of the tubular hull (120); c.) removing the electric cable (100) from the tubular hull application unit (200); and x.) repeating steps a.), b.) and c.) at least two times and in consecutive order. Furthermore, a tubular hull application unit adapted for carrying out such a method and a tether produced according to this method and comprising an electric cable and a tubular hull are provided.

An electrical conduit spacing device to organize spacing of an electrical conduit at a predetermined location, the electrical conduit spacing device including a main body, a plurality of magnetic portions disposed on a first side of the main body and a second side of the main body opposite with respect to the first side to attract the electrical conduit thereto, a plurality of measuring sticks perpendicularly disposed on at least a portion of a bottom surface of the main body with respect to a direction to indicate a distance of a space between the electrical conduit, and another object or surface, and a butterfly nut disposed on at least a portion of the main body to move at least one of the plurality of measuring sticks in response to movement of the butterfly nut.

Systems and methods for mounting electrical devices such that they appear “flush” with a finished wall. The systems include specialized back boxes, mud rings, faceplates, and other tools that are installed and used during the mounting process. The mounting process includes a specific series of steps that take place during construction and wall finishing, including that mud or other finishing material is used to both “hide” the mounting system and lock it into place The systems and methods allow for full usage of existing electrical devices such as electric outlets, light switches, and USB connectors, with an improved visual appearance over existing electrical plates that sit on top of the wall.