Extreme cold temperatures can cause cables to temporarily become brittle and inflexible. In these conditions, some cables will stiffen and even crack if they are installed below recommended temperatures. Watch this video of THHN/THWN-2 snapping on the jobsite during a cold weather installation to learn more.
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The sole purpose of electrical wire and cable is to conduct an electric current from one point to another, but if the cable starts to corrode, it can quickly become damaged and result in loss of performance. While bare copper is fairly resistant to corrosion, read how tinned copper conductors prevent accelerated corrosion against wet and contaminated environments.
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All ISO standards are reviewed every five years; however, revisions are only made when the information isn’t relevant for the current marketplace. ISO 9001:2015 places a greater importance on risk and includes an updated structure compatible with other management system standards.
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The latest version of NFPA 79 establishes very specific wire and cable requirements for VFD applications in an effort to accumulate the decades of industry experience into a wire and cable design document. ServiceDrive® VFD Cable System designs have always met the new 2018 NFPA 79 cable requirements.
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