Sag Standards for Steel Strand Optical Cables

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Sag - Defined by various texts (IEEE Std 100-1996, IEEE Std 524-1992, NESC) as the vertical distance between the cable and an imaginary horizontal line extending between the points where the cable is attached to the poles. Clearance requirements for aerial cables are defined in Section 23 of the National Electrical Safety Code® (NESC®). Additionally, some countries outside of the United States have adopted all or part of this code. CommScope's SpanMaster software is a tool designed for use in the calculation of sag and tension of single or multiple cable combinations under various environmental loading conditions. NESC Table 235-5 (Vertical clearance between conductors at supports) states in 1.

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