ROSSLYN, Va.—The National Electrical Manufacturers Association (NEMA) published ANSI/NEMA WC 75-2015 Standard for Controlled Impedance in Internal Electrical Cable. This standard was developed to cover specific requirements for finished cables with controlled impedance twisted pairs. It enables a user to specify various numbers of pairs (1– 61) with a required impedance requirement, and tailor the materials to meet a specific end application. The cables are intended for wiring of electrical equipment.
ANSI/NEMA WC 75 was developed by the NEMA 7HW Aerospace Technical Committee, and is for the defense industry, aerospace industry, and other high performance applications.
ANSI/NEMA WC 75 -2015 is available in hard copy or electronic download for $68 on the NEMA website.
Electrical Manufacturers Association (NEMA) represents nearly 350 electrical
equipment and medical imaging manufacturers that make safe, reliable, and efficient products
and systems. Our combined industries
account for 360,000 American jobs in more than 7,000 facilities covering every
state. Our industry produces $106 billion shipments of electrical equipment and
medical imaging technologies per year with $36 billion exports.