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VFD Cable Selection

When specifying cable systems for variable frequency drive (VFD) applications, it is important to select an electrically balanced, copper tape shielded cable with XLPE insulation. This design will reduce EMI, provide a low impedance return path, and reliably withstand high voltage spikes.

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Tinned Copper

Tinned copper conductors are primarily used in wastewater treatment facilities, subway systems, and other environments with long-term exposure to excess water or moisture. The tin coating on the copper protects the wire from corrosion and premature cable failure.

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MC vs. Pipe and Wire

Metal-clad (MC) cable constructions are a cost-effective alternative to traditional pipe and wire. These high-performing solutions offer significant cost savings by eliminating the need for electrical conduit and the labor required for installation. Contractors who use MC cable require limited pulling equipment, fewer reels, and less time setting up pulls.

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Dual Rated Tray Cable

Underwriters Laboratory (UL) recently updated its standard for electrical power and control tray cable, allowing manufacturers to market tray cable as UL dual rated for 600V/1kV applications.

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Reel Return

Reduce your disposal costs – as well as your environmental impact. This FREE service helps customers manage the disposal cost of wood reels.

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NFPA 79 Compliance

The latest version of NFPA 79 establishes very specific wire and cable requirements for variable frequency drive (VFD) applications. NFPA 79 now discourages the use of thermoplastic insulation and encourages the use of thermoset insulations; requires tray rated products listed to UL 1277/2277; and calls for multiple grounds, proper shielding, and proper shield termination.

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THHN vs XHHW: What's the Difference?

Thermoplastic and thermoset are two common types of cable insulation, and it's important to understand the strengths and weaknesses of each when designing and building a new facility, machine, or appliance. There are a few factors that set XHHW-2 apart from THHN/THWN-2.

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ISO 9001:2008 and ISO 9001:2015 Differences

ISO 9001:2015 focuses on inflection, allowing companies to improve processes, anticipate unforeseen circumstances, and maintain and improve product quality. The revised standard includes an updated structure compatible with other ISO standards; use of the PDCA cycle, a continuous model focused on systematic improvement; and an increased prominence on risk-based thinking.

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