Mining trailing & reeling cablesSANS 1520-1 Type 61A640/1,100 V · TPU SheathOptional Reflective Tape

SANS 1520-1 Type 61A TPU Mining Trailing Cable (640/1,100 V)640/1,100 V 3-core screened + pilot trailing & reeling cable with TPU sheath

South African SANS 1520-1 Type 61A heavy-duty trailing and reeling cable (640/1,100 V) with three tinned-copper/nylon braid-screened EPR power cores, one unscreened pilot core, CR inner sheath and a tear-resistant TPU outer sheath.

EMC screen
Flame-retardant
Oil-resistant
Water-resistant
Order designation
Type 61A · 3 × 95 + 1 × 16 mm²
Power size
95 mm²
Nominal OD
59.1 mm
Mass ≈
6,340 kg/km
Current (30 °C)
295 A
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
640/1,100 V
SANS 1520-1 LV mining
Core arrangement
3P (scr) + 1P
3 screened + 1 pilot
Size range
25–150 mm²
95 mm² reference + series
Outer sheath
TPU + CR inner
Black or reflective TPU
Operating temp.
−25 to +90 °C
EPR / CR + TPU
Min. bend radius
6 × OD
Reeling & non-reeling

Typical values for this cable type, based on SANS 1520-1 · SANS 1411-1 & -3 — confirmed in the datasheet and quotation for your order.

Application fit

Is SANS Type 61A (640/1,100 V) right for your machine?

Engineered for underground coal shuttle cars, continuous miners, LHD loaders and high-wear reeling/trailing applications where a thermoplastic polyurethane (TPU) outer sheath—and optional transparent TPU over orange/silver reflective tape—dramatically reduces rock-cut and run-over damage.

Trailing & towing

Suitable

Primary 640/1,100 V trailing cable for continuous miners, shuttle cars, roof bolters and mobile feeder-breakers.

Motorised monospiral reel

Suitable

Rated for horizontal drum reeling on shuttle cars and LHD loaders with a 16-string open nylon anti-torsion braid.

Cylindrical / multi-layer drum

Suitable

Low-friction TPU outer sheath spools smoothly on multi-layer shuttle-car reels while resisting flange pinch.

Immersion & wet locations

Suitable

EPR insulation, CR inner sheath and TPU outer jacket resist wet mine floors, hydraulic oil and ozone.

Free-hanging vertical run

Not suitable

Flexible unarmoured trailing construction — do not suspend in deep vertical mine shafts without support.

Use BS 6708 Type 20/21 Armoured
Typical machinesUnderground coal shuttle carsContinuous miners & roadheadersElectric LHD scooptramsMobile feeder-breakersHigh-visibility haulageway reelsHard-rock jumbo drill rigs

Construction

Layer by layer

Three Class 5 tinned copper power cores insulated with EPR and individually screened with a tinned-copper/nylon braid are laid up with one unscreened EPR pilot core around a central rubber filler, bedded in a CR polychloroprene inner sheath, reinforced with a 16-string open nylon braid, and oversheathed in black TPU (or transparent TPU over orange/silver reflective tape).

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Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Power conductors (3)Class 5 flexible stranded tinned annealed copper per SANS 1411-1SANS 1411-1
2Power core insulationEthylene propylene rubber (EPR) thermosetting compound (640/1,100 V grade)SANS 1411-3
3Individual phase screens (3)Composite tinned copper (0.31 mm wires) and nylon braid screen over each power coreEarth-fault screen
4Pilot core (1)Unscreened Class 5 tinned copper pilot core with EPR insulation laid up in intersticePilot interlock circuit
5Inner sheathPolychloroprene (CR) rubber inner sheathSANS 1411-3
6Reinforcement braidOpen-weave nylon reinforcement braid (minimum 16 strings)SANS 1520-1
7Outer sheath (TPU)Thermoplastic polyurethane (TPU), black or transparent over orange/silver reflective tapeSANS 1520-1 · ICEA S-75-381 Tab. 3-3

Black Heavy-Duty TPU Outer Sheath

Standard black thermoplastic polyurethane outer sheath over CR inner sheath and 16-string nylon braid

Transparent TPU + Orange/Silver Reflective Tape

Transparent TPU outer sheath encapsulating a helically wound orange/silver retro-reflective tape for underground visibility

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on SANS 1520-1 · SANS 1411-1 & -3. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
640/1,100 V AC (SANS 1520-1 Type 61A heavy-duty trailing & reeling cable)
Current rating (30 °C)
130 to 390 A laid out straight (295 A for 95 mm² reference size)
Individual phase screens
Composite tinned copper / nylon braid screen over each EPR power core (0.31 mm wires, 43 mm² on 95 mm²)
Pilot core
1 × unscreened EPR-insulated pilot core (10 to 25 mm²; 16 mm² on 95 mm²) laid up in interstice

Thermal

Operating temperature range
−25 °C to +90 °C
Max. conductor temperature
+90 °C continuous · +250 °C short-circuit (1 s)

Mechanical

Min. bending radius
6 × OD (reeling and non-reeling mobile mining duty)
Outer & inner sheath system
CR polychloroprene inner sheath + 16-string open nylon braid + TPU thermoplastic polyurethane outer sheath
High-visibility reflective option
Black TPU or transparent TPU over orange/silver reflective tape for dark underground headings

Resistance

Cut, tear & rock abrasion
TPU outer sheath provides superior tear, rock-cut and shuttle-car run-over resistance vs standard CR
UV, ozone & oil resistance
UV resistant, ozone resistant, sunlight resistant and oil resistant

Reference standards

Construction standard
SANS 1520-1 · SANS 1411-1 · SANS 1411-3 · ICEA S-75-381 Tab. 3-3
Conductor class
Class 5 flexible stranded tinned annealed copper per SANS 1411-1

Identification

Outer sheath colour
Black TPU or transparent TPU with orange/silver reflective tape underneath
Type designation
SANS 1520-1 Type 61A (3 × screened power + 1 × unscreened pilot, TPU outer sheath)

Sizes

SANS 1520-1 Type 61A sizes (25–150 mm², featuring 95 mm² datasheet reference)

Dimensions, screen area, pilot size, maximum tensile load and 30 °C straight current rating.

Sizes, dimensions & ratings
Designation
3P + 1 Pilot
Power
mm²
Power Ø
mm
Screen area
mm²
Pilot
mm²
Pilot Ø
mm
Max. tension
kN
Nominal OD
mm
Mass ≈
kg/km
Current (30 °C)
A
Sym. S/C (1 s)
kA
Enquiry
Type 61A · 3 × 25 + 1 × 10 mm²256.825104.21.140.52,8501303.1
Type 61A · 3 × 35 + 1 × 10 mm²358.527104.21.643.53,3201604.3
Type 61A · 3 × 50 + 1 × 10 mm²5010.332104.22.347.04,0502006.1
Type 61A · 3 × 70 + 1 × 16 mm²7011.937165.33.253.05,1202458.5
Type 61A · 3 × 95 + 1 × 16 mm²9513.543165.34.359.16,34029511.6
Type 61A · 3 × 120 + 1 × 16 mm²12015.547165.35.463.07,45034514.6
Type 61A · 3 × 150 + 1 × 25 mm²15017.352256.86.867.58,75039018.3
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • 95 mm² row (59.1 mm OD, 6,340 kg/km, 4.3 kN max tension, 43 mm² screen, 16 mm² pilot) is directly from the TEBAOFLEX Type 61A datasheet; companion SANS 1520-1 sizes (25–150 mm²) are typical SANS 1520-1 values.
  • Available with black TPU outer sheath or transparent TPU over orange/silver reflective tape.

Reel check

Will it fit your machine?

A first screen using datasheet values. Engineering confirms drum geometry, acceleration and tension with your quotation.

Check results

Enter your drum core diameterMinimum for this size is about 710 mm
Minimum bending radius
355 mm
Min. drum core diameter
≈ 710 mm
Cable weight on drum
634.0 kg
Outer diameter
59.1 mm
Indicative only: based on the datasheet outer diameter and 6 × OD bending radius. Current derating for wound layers per DIN VDE 0298-4 is assessed separately.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
AC high-voltage dielectric withstand testRoutine AC withstand test on 640/1,100 V EPR cores per SANS 1520-1Every shipping drum
Conductor, screen & pilot DC resistanceVerified on all 3 power conductors, 3 individual copper/nylon screens and pilot coreEvery shipping drum
Sample tests
TPU outer sheath tear, abrasion & UV/oil testTested to SANS 1520-1, SANS 1411-3 and ICEA S-75-381 Tab. 3-3Production batch

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

SANS 1520-1 Type 61ACE · LVDRoHS · REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX · SANS 1520-1 · TYPE 61A · 640/1100V · 3 x [mm²] + P · EPR/CR/TPU
Delivery form
Export seaworthy wooden drums matched to 6 × OD bend radius
Sheath options
Black TPU standard, or transparent TPU over orange/silver reflective tape
Certificate
EN 10204 3.1 factory routine test certificate with every drum
Quote response
Engineering specification and quote within 2 business hours

Technical documents

Downloads

Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

How does SANS Type 61A differ from SANS Type 61B?
Type 61A uses 3 composite copper/nylon braid-screened power cores + 1 unscreened pilot core and features a thermoplastic polyurethane (TPU) outer sheath (black or transparent over reflective tape) for reeling and trailing duty. Type 61B uses 3 copper-braid-screened power cores + 3 unscreened pilot cores and twin CR polychloroprene sheaths for non-reeling movable apparatus.
What is the purpose of the transparent TPU sheath with orange/silver reflective tape?
In low-light underground coal and hard-rock haulageways, a transparent TPU outer jacket extruded over a helically lapped orange and silver retro-reflective tape makes the trailing cable immediately visible in cap-lamp and vehicle headlight beams, reducing run-over incidents.
Can SANS Type 61A be used on shuttle-car cable reels?
Yes. Type 61A is rated for both reeling and non-reeling service with a 6 × OD minimum bend radius, an internal 16-string nylon anti-torsion braid and a tough, low-friction TPU outer sheath.
Are sizes other than 95 mm² available in SANS Type 61A?
Yes. While the TEBAOFLEX summary datasheet highlights the 3 × 95 + 1 × 16 mm² shuttle-car/miner size, Type 61A is manufactured across the full SANS 1520-1 range from 25 mm² to 150 mm² (and up to 240 mm² on request).

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SANS Type 61A 640/1100 V Mining Trailing Cable

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