Type 61B 0.64/1.1kV Flexible Copper Screened Mining Cable, Mining Trailing & Rolling cable&Crane cable

OVERVIEW

SPECIFICATIONS

CONSTRUCTION

PARAMETER

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Applications

Electrically driven machines , movable electric apparatus in hazardous areas .Not for reeling purposes.
Other industrial applications.

Features:

Excellent flexibility
Water resistant and flame retardant
Operating temperature min. ambient temp. -25℃, max. conductor temp. 90℃.
UV, sunlight, ozone, oil, resistant
Embossing marking as per order.

Specifications

Low Voltage

Cold Resistant -25℃

UV Resistance

Water Resistance

Working Temperature 90℃

Oil Resistance

Flame Retardant

construction

Cable type:

Type 61B 0.64/1.1 kV

Conductors:

Flexible class 5 comply to SANS 1411 - 1 from tinned annealed copper wires left lay 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)

Core of cable:

Three tinned copper braided screened power cores and three unscreened pilot cores one in each interstice laid up in the right hand lay around semi-conductive rubber filler.

Inner sheath:

Poly-chloroprene thermosetting compound type RS 6 comply to SANS 1411-3 .

Re-enforcement:

An open nylon braid . Minimum 16 of nylon strings .

Outer sheath:

Poly-chloroprene thermosetting compound type RS 6 comply to SANS 1411-3 .

Colour of sheath:

Black .

Tests:

SANS 1520-1.

parameter

Table 1

Table 2

Physical Properties
Power cores
Conductor sizes (mm2)	35	50	70	95	120	150
Maximum wire diameter ( mm)	0.41	0.41	0.51	0.51	0.51	0.51
Approx. conductor diameter ( mm)	8.5	10.3	11.9	13.5	15.5	17.3
Maximum screen wire diameter (mm)	0.31	0.31	0.31	0.31	0.31	0.31
Braided screen filling factor (%)	80	80	80	80	80	80
Approx. summarized screen cross-section for power cores (weighing method) (mm2)	27	32	37	43	47	52
Pilot cores
Conductor sizes ( mm2)	6	6	16	16	16	16
Maximum wire diameter ( mm)	0.31	0.31	0.41	0.41	0.41	0.41
Approx. conductor diameter ( mm)	3.2	3.2	5.2	5.2	5.2	5.2
Lay Ratio (maximum) (x PCD)	12	12	12	12	12	12
Cable diameter
Approx. (mm)	41	42.5	48	52.3	58	63.5
Cable mass (approx.) (kg/m)	3.1	3.6	4.8	5.7	7.1	8.5
Minimum bending radius (mm)	300	340	390	430	460	500
Maximum recommended tension (kN)	1.6	2.3	3.2	4.3	5.4	6.8

Electrical Properties
Power cores
Maximum cond. DC resistance @ 200C (Ω/km)	0.576	0.401	0.283	0.214	0.167	0.135
Maximum cond. DC resistance @ 900C (Ω/km)	0.734	0.511	0.360	0.273	0.213	0.171
Reactance (Ω/km)	0.090	0.090	0.088	0.086	0.086	0.085
Impedance (Z) @ 900C (Ω/km)	0.740	0.519	0.371	0.287	0.230	0.191
Sustained current rating @ 300C ambient
Laid out straight (A)	160	200	245	295	345	390
Short circuit rating :
Symmetrical fault current (kA for 1 sec)	4.3	6.1	8.5	11.6	14.6	18.3
Earth fault current (screens) (kA for 1 sec)	2.1	3.1	3.5	4.1	4.1	4.1

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