1.1 This Standard specifies requirements for Type NS75 and NS90 neutral-supported cables for use on outdoor overhead electrical systems that (a) have nominal voltages of 600 V or less; and (b) are intended for installation in accordance with the Canadian Electrical Code, Part I.
1.2 Neutral-supported cables covered by this Standard consist of a maximum of five conductors (one, two, or three insulated phase conductors, a neutral conductor, and an optional insulated control/supply conductor). The conductors are insulated with polyethylene (PE) rated 75 °C or cross-linked polyethylene (XLPE) rated 75 or 90 °C.
1.3 Flame test requirements for neutral-supported cable insulations or coverings are also covered in this Standard, to the extent called for by the Canadian Electrical Code, Part I.
