Abstract:
A continuous flexible bus comprises, for example, a plurality of metal clad flexible conductors. A device, such as a switch for example, is connected to the continuous flexible bus. In order to connect the device to the continuous flexible bus, at least one piercing connector is used, for example. The at least one piercing connector is configured, for example, to pierce one of the plurality of flexible metal clad conductors. Once the one of the plurality of flexible metal clad conductors is pierced, the at least one piercing connector causes, for example, an electrical connection between an electrical conductor in the pierced one of the plurality of flexible metal clad conductors and the switch.
Abstract:
Disclosed is type THHN cable having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a nylon sheath. A high viscosity, high molecular weight silicone based pulling lubricant for THHN cable, or alternatively, erucamide or stearyl erucamide for small THHN gauge wire, is incorporated, by alternate methods, with the nylon material from which the outer sheath is extruded, and is effective to reduce the required pulling force on the cable during installation.
Abstract:
A metal-clad cable having a plurality of spaced apart labels. The labels have coded information about the cable and are conductive and/or include a plurality of openings so as to assure conductivity between an outer sheath of the metal-clad cable and a terminating assembly connector member coupled thereto.
Abstract:
A flexible cable including an outer sheath having an inner surface, the inner surface forming a channel to receive at least one conductor and a support member. At least one conductor and support member are positioned within the channel to substantially resist deformation of the outer sheath.
Abstract:
A metal-clad cable having a plurality of spaced apart labels. The labels have coded information about the cable and are conductive and/or include a plurality of openings so as to assure conductivity between an outer sheath of the metal-clad cable and a terminating assembly connector member coupled thereto.
Abstract:
Disclosed is type THHN cable having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a nylon sheath. A high viscosity, high molecular weight silicone based pulling lubricant for THHN cable, or alternatively, erucamide or stearyl erucamide for small THHN gauge wire, is incorporated, by alternate methods, with the nylon material from which the outer sheath is extruded, and is effective to reduce the required pulling force on the cable during installation.
Abstract:
Disclosed is a method of manufacturing a finished cable by a process directed to reduce the amount of force required to install the cable. The process involves the extrusion of the cable's outer sheath and the incorporation of a pulling lubricant in connection with, and prior to the completion of, the extrusion to reduce the sheath's surface coefficient of friction as well as reduce the required force to pull the cable for installation. The conductor core is coated with an extruded plastic material with which an appropriate (in amount and type) pulling lubricant is initially combined with the plastic material prior to the formation of the sheath and in which the sheathed conductor core is thereafter cooled, the lubricant either migrating to and/or permeating the sheath to be available at the surface of the sheath at the time of the cable's installation. The preselected lubricant is disclosed as either combined with the plastic material during initial pelletization, or mixed with the plastic pellets prior to introduction of the mixture into the extruding head, or introduced into the extruding head at a separate location downstream from where the plastic material is introduced into the extruding head.
Abstract:
A coupled building wire assembly is provided wherein more than one length of NM cable having the same or different gauges are coupled together that permits one to pull multiple lengths of cable from a single coil. The exterior surfaces of the coupled building wire assembly is also coated with a lubricant or has its outer sheaths incorporating the sufficient lubricant, which either migrates to the sheaths' surfaces or permeates such sheaths.
Abstract:
The present invention includes a cable having reduced surface friction and the method of manufacture thereof having steps in which a conductor wire is coated with a mixture of a plastic material and lubricating material and in which the coated conductor wire is cooled. The cable includes at least one conductor core and at least one coating of plastic material and incorporates a lubricating material in and/or on the plastic material. The equipment for the manufacturing of electrical cable includes a reel for supplying a conductor wire to an extruding head, which is connected to tanks containing plastic material and lubricating material for coating the conducting wire, and a reel for taking up the cable.
Abstract:
The present invention includes a cable having reduced surface friction and the method of manufacture thereof including steps in which a conductor wire is coated with a first plastic material and with a mixture of a second plastic material and lubricating material and the coated conductor wire cooled. The cable includes at least one conductor core and at least two coatings of plastic material and incorporates a lubricating material in and/or on the outer layer of plastic material. The equipment for the manufacturing of the electrical cable includes a reel for supplying a conductor wire to an extruding head, which is connected to tanks containing plastic material and lubricating material for coating the conducting wire, and a reel for taking up the cable.