Multiconductor extra-hard-usage cable used to connect a borderlight or connector strip with a gridiron junction box. Typical circuit count in the cable is six to 20 circuits. Typical cable type is 90 degree C type SO or derivatives. Ampacity of this cable type is covered by NEC table 520.44, which requires at least 50% diversity, electrical. See also the PDF View attachment estacablessp02.pdf by Colortran's Ken Vannice, for ESTA Protocol magazine.