CSA C22.2 NO. 124-M1986 (R1999)

This PDF includes GI #2, #3 and #4.

1. Scope

1.1

This Standard applies to mineral-insulated cables with copper, nickel-clad copper, or nickel conductors, enclosed in a copper or stainless steel sheath.

1.2

The constructions covered by this Standard are intended for use in power, instrumentation, control, and fire alarm systems in accordance with the Rules of the Canadian Electrical Code, Part I.

1.3

The constructions covered by this Standard are recognized for use where normal conditions are such that no part of the cable is subjected to a temperature in excess of 250?C. When provided with an overall thermoplastic protective covering, the use is restricted to 90?C.

1.4

The constructions covered by this Standard are (a) Type MI mineral-insulated, copper-sheathed cable recognized for use on systems having a nominal voltage of 600 V or less; (b) Type SSMI mineral-insulated, stainless steel-sheathed cable recognized for use on systems having a nominal voltage of 600 V or less; (c) Type LWMI mineral-insulated, copper-sheathed cable recognized for use on systems having a nominal voltage of 300 V or less, or 600 V or less; and (d) Type SSLWMI mineral-insulated, stainless steel-sheathed cable recognized for use on systems having a nominal voltage of 300 V or less, or 600 V or less.

1.5

Optional requirements are provided for (a) twisted pair configurations; (b) copper or stainless steel shields; (c) overall thermoplastic protective coverings; (d) flame test classification; and (e) fire rating.