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Power Cables

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About Power Cables

Power cables are solid or stranded conductors surrounded by insulation, shielding, and a protective jacket.  These cables are designed for high voltages (>600 V). Generally the power cables are rated Low Voltage (<1kV), Medium Voltage (6-36 kV), and High Voltage (>40 kV). Applications for power cables are for use with heavy machines, feeders and branch circuits in industrial, commercial, and electric utility applications.  Important cable performance specifications to consider when searching for power cables include number of conductors, nominal outer diameter, rated voltage, rated amperage, and operating temperature.  The number of conductors is the number of insulated conductors in the cable.  The nominal outer diameter is the diameter of the cable or wire including insulation and jacket.

Important cable construction parameters to consider when searching for power cables include cable jacket, cable shielding, cable insulation, and cable conductor.  Choices for cable jacket include chlorinated polyethylene (CPE), chlorosulphonated polyethylene (CSPE), and polyvinyl chloride (PVC).  Cable shielding is a metallic layer placed around an insulated conductor or group of insulated conductors, to prevent electrostatic or electromagnetic interference between the enclosed wires and external fields.  Cable shielding choices for power cables include copper tape, copper wire shield, and no shield.  Cable insulation is a material having a high resistance to the flow of electric current to prevent leakage of current from a conductor.  Common materials include cross linked polyethylene (XLP), ethylene propylene rubber (EPR), polyethylene (PE), and polyvinyl chloride (PVC).  A cable conductor is a wire or combination of wires not insulated from one another, suitable for carrying electric current.

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Products & Services Related to Power Cables

Cable Assemblies
Cable assemblies are collections of wires or cables banded into a single unit with connectors on at least one end.
Coaxial Cables and Triaxial Cables
Coaxial cables have one conductor insulated with a dielectric material and then surrounded by the other conductor, usually referred to as the center conductor and shield.  Triaxial cables are specialized coaxial cables.
Flat Cables
Flat cables are typically used in computers for internal connections to peripherals. They are also referred to as ribbon cables.
Industrial Network Cables
Industrial network cables are used in industrial applications such as automation, control and data acquisition.
Multiconductor Cables
Multiconductor cables contain two or more conductors, each of which consists of a single wire or combination of wires. Cable shielding is placed around an insulated conductor or group of conductors to prevent electrostatic or electromagnetic interference between the enclosed wires and external fields.
Serial Cable Assemblies
Serial cable assemblies are used for the serial transmission of data. They support communication standards such as RS232, RS422, and RS485, as well as Fibre Channel, FireWire or IEEE 1394, USB 1.1, and USB 2.0.
Video Cable Assemblies
Video cable assemblies are used for the transmission of video signals, including monochrome, composite and component color video signals. 

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Part Numbers for Power Cables

Part # Distributor Manufacturer Product Category Description
C01362-50-ND Digi-Key General Cable/Carol Brand Cables, Wires POWER CORDAGE 3 COND 14AWG SJ
8125/13 100 Digi-Key 3M Cables, Wires CABLE 13 COND .100"" FLAT POWER
C3391/06 100 Digi-Key 3M Cables, Wires CABLE 6 COND .156"" FLAT POWER
8124/05 100 Digi-Key 3M Cables, Wires CABLE 5 COND FLAT POWER .100""
8124/08 100 Digi-Key 3M Cables, Wires CABLE 8 COND FLAT POWER .100""

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