PVC-Iisulated, heat-resistant 90 degrees Celsius cables
Applications: these cables are used for the wiring of switch control, metering, relay and instrument panels of power switchgear, and for such purpose as internal connections in rectifier equipment and in motor starers and controllers, where operation at temperature of 90 degrees Celsius
Construction: solid (class1) or stranded (class 2), plain annealed copper conductor, PVC insulation
Specifications:  BS6231:1998: table 8 (CR and CU)
Type: heat resistance 90 degrees Celsius
Voltage range:  600/1,000V  
Table1: types CK PVC-insulated flexible cables          
Type:
Area of conductor Insulation thickness Overall Diameter Weight Minimum insulation resistance 90 degrees Celsius
mm² mm mm kg/km M Ohms.km
0.5      0.8     2.6     12      0.0161
0.75     0.8     2.8     15      0.0141
1        0.8     3       18      0.0128
1.5      0.8     3.3     23      0.0111
2.5      0.8     3.7     34      0.0094
4        0.8     4.3     48      0.0077
6        0.8     5.8     70      0.0059
10       1       6.9     119     0.0058
16       1       8.1     177     0.0048
25       1.2     9.9     273     0.0047
35       1.2     11.5    372     0.004
50       1.4     13.6    530     0.0039
70       1.4     15.7    732     0.0033
95       1.6     17.9    965     0.0032
120      1.6     19.9    1,215   0.0029
150      1.8     22.2    1,512   0.0029
185      2       24.5    1,850   0.0029
240      2.2     28      2,428   0.0028