What is the spacing between supports for nonmetallic cableSo

What is the spacing between supports for non-metallic cable?

Solution

Nonmetallic
cable shall be supported and secured by staples, cable
ties, straps, hangers, or similar fittings designed and
installed so as not to damage the cable, at intervals not
exceeding 1.4 m (41/2 ft) and within 300 mm (12 in.) of
every outlet box, junction box, cabinet, or fitting. Flat
cables shall not be stapled on edge. Sections of cable
protected from physical damage by raceway shall not be
required to be secured within the raceway