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CSA-C22.2 No. 245 ‚ UL 1309  Code Designation

5.2  Cable type designation
5.2.1 The following code symbols shall only apply to cables constructed to this Standard. The
legend on the cable jacket shall include a descriptive code enabling the identification of the
cable construction materials. The designations are made up of letters and numbers signifying the
number of conductors, types of insulation, shielding materials, jacket, armour, and conductor size.

The following code symbols shall apply:



5.2.2 Specific cable types shall include additions to the designations indicated in Clauses
5.2.2.1, 5.2.2.2,
and 5.2.2.3, as applicable.

5.2.2.1 For signal and control cables with shielding:
a) Individually shielded pairs or triads shall be denoted as "(I/S)";

b) Overall metal foil shielded pairs or triads assemblies shall be denoted as "(OS)";

c) Individually shielded pairs or triads with an overall shield shall be denoted as "(I/S-OS)"; and

d) Overall copper braid shielded pairs or triads assemblies shall be denoted as "(OBS)".

5.2.2.2 For distribution cables:
a) For 300 V rated cables a suffix "-300 V" shall be added;

b) For 600 V rated cables a suffix "-600 V" shall be added;

c) For 600 V/1000 V rated cable, a suffix -600/1000 V shall be added;

d) For 2000 V rated cables a suffix "-2 kV" shall be added;

e) For 5000 V non-shielded cables a suffix "-5 kV" shall be added;
f) For 5000 V shielded cables and above, the rated voltage and the insulation level (100% or 133%)
shall be added; and

g) The wire size shall be designated by adding to the cable symbol the conductor size, to the
nearest
kcmil (eg, #14 AWG would be expressed as –4 representing 4.110 kcmil).


5.2.2.3 For control and signal cable: The wire size of control and signal cable types shall be
designated by
inserting the AWG size immediately following the service symbol. The number of conductors of
control cable, and the number of conductor pairs of signal cable, shall be added to the cable
designation, thus:

C14T75CPB-20 means 20 conductor control cable, AWG No. 14, thermoplastic-insulated 75EC rated,
thermosetting chlorosulfonated polyethylene jacketed, and bronze armour;

T90P18TNA-10 means 10 twisted pair signal cable, AWG No. 18, thermoplastic-insulated, 90EC
thermosetting neoprene jacketed, and aluminum armour.