Type BK & CK, Tri-rated Cable, 600/1000V
Application
This cable is designed for use in the switch control, relay and instrumentation panels of power switchgear
and for purposes such as internal connectors in rectifier equipment, motor starters and controllers.
Standard
BS6231:2006
Construction
Conductor: Plain annealed copper fine wire, stranded to IEC 60228 class 5
Insulation: PVC, type TI1
Color for core identification
Single color: black, blue, brown, red, white, yellow, grey ect.
Bi-color: green/yellow
Technical Characteristics
Rated voltage: 600/1000V
Minimum bending radius: 6xOverall diameter
Operating temperature: 70ºC for type BK, 90ºC for type CK
Flame retardant: IEC 60332.1
Technical Parameter
Type BK
| No. of Cores x Nominal Cross Sectional Area | No. of wires | Wire Dia. | Nom. Insulation Thickness | Overall Diameter | Min. Insulation Resistance at 70ºC | Maximum Resistance of Conductor at 20ºC | ||
| Min. OD | Max. OD | Plain Copper Wires | Tinned Copper Wires | |||||
| # x mm² | mm | mm | mm | mm | Mohm.km | Ω/km | Ω/km | |
| 0.5 | 16 | 0.2 | 0.8 | 2.4 | 3.0 | 0.0161 | 39.0 | 40.1 |
| 0.75 | 24 | 0.2 | 0.8 | 2.6 | 3.1 | 0.0141 | 26.0 | 26.7 |
| 1.0 | 32 | 0.2 | 0.8 | 2.7 | 3.3 | 0.0128 | 19.5 | 20.0 |
| 1.5 | 30 | 0.25 | 0.8 | 3.0 | 3.6 | 0.0111 | 13.3 | 13.7 |
| 2.5 | 50 | 0.25 | 0.8 | 3.4 | 4.1 | 0.0094 | 7.98 | 8.21 |
| 4 | 56 | 0.3 | 0.8 | 3.9 | 4.8 | 0.0077 | 4.95 | 5.09 |
| 6 | 84 | 0.3 | 0.8 | 4.4 | 5.3 | 0.0059 | 3.30 | 3.39 |
| 10 | 80 | 0.4 | 1.0 | 5.7 | 7.2 | 0.0058 | 1.91 | 1.95 |
| 16 | 128 | 0.4 | 1.0 | 6.7 | 9.0 | 0.0048 | 1.21 | 1.24 |
| 25 | 200 | 0.4 | 1.2 | 8.4 | 11.5 | 0.0047 | 0.780 | 0.795 |
| 35 | 280 | 0.4 | 1.2 | 9.7 | 12.5 | 0.0040 | 0.554 | 0.565 |
| 50 | 400 | 0.4 | 1.4 | 11.5 | 15.4 | 0.0039 | 0.386 | 0.393 |
| 70 | 356 | 0.5 | 1.4 | 13.2 | 17.5 | 0.0033 | 0.272 | 0.277 |
| 95 | 485 | 0.5 | 1.6 | 15.1 | 19.2 | 0.0032 | 0.206 | 0.210 |
| 120 | 614 | 0.5 | 1.6 | 16.7 | 21.2 | 0.0029 | 0.161 | 0.164 |
| 150 | 765 | 0.5 | 1.8 | 18.6 | 23.9 | 0.0029 | 0.129 | 0.132 |
| 185 | 944 | 0.5 | 2.0 | 20.6 | 25.9 | 0.0029 | 0.106 | 0.108 |
| 240 | 1225 | 0.5 | 2.2 | 23.5 | 28.9 | 0.0028 | 0.0801 | 0.0817 |
Type CK
| No. of Cores x Nominal Cross Sectional Area | No. of wires | Wire Dia. | Nom. Insulation Thickness | Overall Diameter | Min. Insulation Resistance at 90ºC | Maximum Resistance of Conductor at 20ºC | ||
| Min. OD | Max. OD | Plain Copper Wires | Tinned Copper Wires | |||||
| # x mm² | mm | mm | mm | mm | Mohm.km | Ω/km | Ω/km | |
| 0.5 | 16 | 0.2 | 0.8 | 2.4 | 3.0 | 0.0161 | 39.0 | 40.1 |
| 0.75 | 24 | 0.2 | 0.8 | 2.6 | 3.1 | 0.0141 | 26.0 | 26.7 |
| 1.0 | 32 | 0.2 | 0.8 | 2.7 | 3.3 | 0.0128 | 19.5 | 20.0 |
| 1.5 | 30 | 0.25 | 0.8 | 3.0 | 3.6 | 0.0111 | 13.3 | 13.7 |
| 2.5 | 50 | 0.25 | 0.8 | 3.4 | 4.1 | 0.0094 | 7.98 | 8.21 |
| 4 | 56 | 0.3 | 0.8 | 3.9 | 4.8 | 0.0077 | 4.95 | 5.09 |
| 6 | 84 | 0.3 | 0.8 | 4.4 | 5.3 | 0.0059 | 3.30 | 3.39 |
| 10 | 80 | 0.4 | 1.0 | 5.7 | 7.2 | 0.0058 | 1.91 | 1.95 |
| 16 | 128 | 0.4 | 1.0 | 6.7 | 9.0 | 0.0048 | 1.21 | 1.24 |
| 25 | 200 | 0.4 | 1.2 | 8.4 | 11.5 | 0.0047 | 0.780 | 0.795 |
| 35 | 280 | 0.4 | 1.2 | 9.7 | 12.5 | 0.0040 | 0.554 | 0.565 |
| 50 | 400 | 0.4 | 1.4 | 11.5 | 15.4 | 0.0039 | 0.386 | 0.393 |
| 70 | 356 | 0.5 | 1.4 | 13.2 | 17.5 | 0.0033 | 0.272 | 0.277 |
| 95 | 485 | 0.5 | 1.6 | 15.1 | 19.2 | 0.0032 | 0.206 | 0.210 |
| 120 | 614 | 0.5 | 1.6 | 16.7 | 21.2 | 0.0029 | 0.161 | 0.164 |
| 150 | 765 | 0.5 | 1.8 | 18.6 | 23.9 | 0.0029 | 0.129 | 0.132 |
| 185 | 944 | 0.5 | 2.0 | 20.6 | 25.9 | 0.0029 | 0.106 | 0.108 |
| 240 | 1225 | 0.5 | 2.2 | 23.5 | 28.9 | 0.0028 | 0.0801 | 0.0817 |
