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Home > Products > Cables by type > Mining Trailing & Rolling Cable & Crane Cable
Type 66 Flexible Copper Screened Mining Cable
Type 66 Flexible Copper Screened Mining Cable
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Product name
Type 66 Flexible Copper Screened Mining Cable
Type 66 Flexible Copper Screened Mining Cable
OVERVIEW
SPECIFICATIONS
CONSTRUCTION
PARAMETER
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Applications
Electrically driven machines, movable electric apparatus in hazardous areas, portable electric apparatus Section feeders. Open cast mining, medium sized draglines, shovels and drills. Suitable for reeling purposes.
Other industrial applications.
Standards:
SANS 1520-2
CHARACTERISTICS:
Excellent flexibility
Abrasion, tear resistant and flame retardant
Temperature range: minimum ambient temperature is -25℃. Maximum conductor temperature is +90℃.
UV, sunlight, ozone and oil resistant
Specifications
Cold Resistant -25℃
Cold Resistant -25℃
UV Resistance
UV Resistance
Working Temperature 90℃
Working Temperature 90℃
Oil Resistance
Oil Resistance
Flame Retardant
Flame Retardant
construction
Conductor:
Flexible class 5 comply to SANS 1411-1 from tinned annealed copper wires, left hand with semi-conducting rubber screen
Insulation:
Ethylene propylene thermosetting compound type RD 3 comply to SANS 1411-3 and a strippable semi-conducting core screen (triple extruded)
Insulation screen:
The braid of tinned copper wires
Cable assembly:
Three tinned copper/nylon braid screened power cores and three unscreened pilot cores one in each interstice laid up in the right hand lay around semi-conductive filler centre. Alternatively, one pilot can be replaced with a tinned ECC conductor semi-conductive rubber covered)
Internal sheath:
Poly-chloroprene thermosetting compound type RS 6 comply to SANS 1411-3
Reinforcing braid:
An open nylon braid. Minimum 16 of nylon strings
Outer sheath:
Poly-chloroprene thermosetting compound type RS 6 comply to SANS 1411-3. Inner and outer sheath are bonded to provide proper torsional protection, black
parameter
Physical Properties
Electrical Properties
Physical properties
Power cores
Conductor sizes (mm2) 25 35 50 70 95 120 150 185 240
Maximum wire diameter (mm) 0.41 0.41 0.41 0.51 0.51 0.51 0.51 0.51 0.51
Approximate conductor diameter (mm) 6.8 8.5 10.3 11.9 13.5 15.5 17.3 20.2 22.9
Maximum screen wire diameter (mm) 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31 0.31
Braided screen filling factor (%) 60 60 60 60 60 60 60 60 60
Approximate summarized screen cross-section for power cores
- weighing method (mm2)
28 29 32 35 39 41 44 47 50
Pilot cores
Conductor sizes (mm2) 10 10 10 16 16 16 25 25 25
Maximum wire diameter (mm) 0.41 0.41 0.41 0.41 0.41 0.41 0.41 0.41 0.41
Approximate conductor diameter (mm) 4.2 4.2 4.2 5.3 5.3 5.3 6.8 6.8 6.8
ECC size (if applicable) (mm2) 16 25 25 35 50 70 95 95 120
ECC maximum wire diameter (if applicable) (mm) 0.41 0.41 0.41 0.41 0.41 0.51 0.51 0.51 0.51
Lay ratio (maximum) (x PCD) 20 20 20 20 20 20 20 20 20
Approxiamte cable diameter * (mm) 50.1 51.7 55.3 59.8 64.6 68.8 73.1 77.8 83.1
Cable mass (approximate)
Type 66 (kg/m) 3.8 4.2 5.1 6.2 7.4 8.7 10.2 11.7 14.1
Type 66 ECC (kg/m) 3.9 4.4 5.5 6.4 7.6 8.9 10.5 11.9 14.5
Minimum bending radius (mm) 430 450 480 520 550 590 650 670 740
Maximum recommended tension (kN) 1.1 1.6 2.3 3.2 4.3 5.4 6.8 8.3 10.8
* Tolerance - +/- 5 of approximate value
Electrical properties
Power cores
Maximum cond. DC resistance at 200C (Ω/km) 0.795 0.565 0.393 0.277 0.210 0.164 0.132 0.108 0.0817
Maximum cond. DC resistance at 900C (Ω/km) 1.05 0.749 0.521 0.368 0.279 0.218 0.176 0.145 0.110
Reactance (Ω/km) 0.124 0.116 0.109 0.105 0.101 0.096 0.092 0.091 0.087
Impedance (Z) at 900C (Ω/km) 1.06 0.758 0.532 0.383 0.297 0.238 0.199 0.171 0.140
Minimum combined screen resistance at 230C (Ω/km) 1.6 1.2 0.8 0.7 0.6 0.6 0.6 0.6 0.6
Minimum combined screen & ECC resistance (Ω/km) 0.7 0.5 0.5 0.4 0.3 0.23 0.18 0.18 0.15
Sustained current rating at 300C ambient
Laid out straight (A) 105 130 160 195 230 260 300 340 400
Short circuit rating
Symmetrical fault current (kA for 1 sec) 3.1 4.3 6.1 8.5 11.6 14.6 18.3 23 29
Earth fault current - screens (kA for 1 sec) 1.6 2.1 3.1 3.5 4.1 4.1 4.1 4.1 4.1
Earth fault current - ECC + screens (kA for 1 sec) 3.6 5.0 5.0 7.5 9.0 11.5 14.0 14.0 17.0
Other Cables With Similar Properties
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