1 / 5

Product

Mining trailing & reeling cablesSANS 1520-1 Type 41640/1,100 V · 2.5–25 mm²3 Screened + 1 Pilot

SANS 1520-1 Type 41 Flexible Mining Trailing Cable (640/1,100 V)640/1,100 V 3-core screened + pilot rubber trailing & reeling cable (2.5–25 mm²)

South African SANS 1520-1 Type 41 flexible trailing and reeling cable (640/1,100 V, 2.5–25 mm²) with three tinned-copper/nylon braid-screened EPR power cores, one unscreened pilot core and a braid-reinforced twin CR sheath.

EMC screen
Flame-retardant
Oil-resistant
Water-resistant
Order designation
Type 41 · 3 × 16 + 1 × 16 mm²
Power size
16.0 mm²
Pilot size
16.0 mm²
Nominal OD
33.0 mm
Mass ≈
2,105 kg/km
Check against my drumAll sizes (6)
Request a quoteDatasheetWhatsApp
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
2.5–25 mm²
6 sizes · small apparatus
Ampacity (30 °C)
34–130 A
Laid out straight
Operating temp.
−25 to +90 °C
EPR / twin CR rubber
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 41 (640/1,100 V) right for your machine?

Built for South African and Southern African underground coal, gold, platinum and hard-rock mines where small-to-medium 525 V or 1,000 V portable apparatus (2.5 to 25 mm²) requires individual core earth-fault screening, pilot earth-continuity interlocking and drum-reeling capability.

Trailing & towing

Suitable

Primary trailing cable for portable face drills, rock bolters, dewatering pumps, auxiliary fans and mobile Welding/gate-end panels.

Motorised monospiral reel

Suitable

Rated for reeling and non-reeling duty with published 1-layer, 2-layer and 3-layer drum current ratings.

Cylindrical / multi-layer drum

Suitable

Open 16-string nylon reinforcement braid between inner and outer CR sheaths resists torsion and tensile pull up to 1.1 kN.

Immersion & wet locations

Suitable

EPR core insulation and twin polychloroprene (CR) sheaths withstand wet underground headings and oil-contaminated sumps.

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 machinesPortable underground face drillsSubmersible mine dewatering pumpsAuxiliary ventilation fansRoof bolters & utility vehiclesGate-end box jumper feedersHazardous-area mobile apparatus

Construction

Layer by layer

Three Class 5 tinned copper power cores insulated with EPR and individually screened with a composite tinned-copper/nylon braid are laid up with one unscreened EPR-insulated pilot core around a central rubber filler, enclosed by an inner CR sheath, a 16-string open nylon reinforcement braid and a black CR outer sheath.

1234567
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Power conductors (3)Class 5 flexible stranded tinned annealed copper (2.5 to 25 mm²)SANS 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 wire and nylon textile braid over each power core (8 to 25 mm² equivalent)Earth-fault screen
4Pilot core (1)Unscreened Class 5 tinned copper pilot core insulated with EPR (2.5 to 16 mm²) around rubber centreEarth-continuity interlock
5Inner sheathPolychloroprene (CR) thermosetting elastomer inner bedding sheathSANS 1411-3
6Anti-torsion reinforcement braidOpen-weave nylon reinforcement braid (minimum 16 strings) vulcanized between sheathsSANS 1520-1
7Outer sheathHeavy-duty black polychloroprene (CR) rubber outer sheathSANS 1520-1 · SANS 1411-3

SANS Type 41 (2.5–25 mm² · CR Sheath)

3 screened power cores + 1 unscreened pilot core with twin CR polychloroprene sheaths for small-section trailing & reeling

Step-Up Option: SANS Type 61A / 61B (35–150 mm²)

For larger 640/1,100 V continuous miners and shuttle cars above 25 mm², specify SANS Type 61A (TPU) or Type 61B (CR)

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 41 portable apparatus trailing cable)
Current rating (30 °C)
34 to 130 A laid out straight · drum layer derated for 1, 2 and 3 layers
Individual phase screens
Composite tinned copper / nylon braid screen over each EPR power core (8 to 25 mm²)
Pilot core
1 × unscreened EPR-insulated pilot core (2.5 to 16 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
Max. tensile load
0.15 kN (2.5 mm²) to 1.10 kN (25 mm²)
Sheath & reinforcement
CR polychloroprene inner sheath + 16-string open nylon braid + heavy-duty black CR outer sheath

Resistance

Flame & oil resistance
Flame-retardant, oil-resistant and abrasion-resistant CR polychloroprene sheath per SANS 1411-3
Water, ozone & UV
EPR insulation and heavy-duty CR jacket resist underground mine water, ozone and surface UV

Reference standards

Construction standard
SANS 1520-1 · SANS 1411-1 · SANS 1411-3
Conductor class
Class 5 flexible stranded tinned annealed copper per SANS 1411-1 / IEC 60228

Identification

Outer sheath colour
Black heavy-duty polychloroprene (CR)
Type designation
SANS 1520-1 Type 41 (3 × screened power + 1 × unscreened pilot, 640/1,100 V)

Sizes

6 standard sizes from 2.5 mm² to 25 mm² (SANS 1520-1 Type 41 · 640/1,100 V)

Switch between dimensional/mechanical data and electrical/drum-derated current ratings (30 °C ambient).

Dimensions & mechanical
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		Enquiry
Type 41 · 3 × 2.5 + 1 × 2.5 mm²2.52.18.02.52.10.1520.0712
Type 41 · 3 × 4 + 1 × 4 mm²4.02.79.54.02.70.2425.0902
Type 41 · 3 × 6 + 1 × 6 mm²6.03.310.46.03.30.3626.01,103
Type 41 · 3 × 10 + 1 × 10 mm²10.04.219.010.04.20.6029.01,563
Type 41 · 3 × 16 + 1 × 16 mm²16.05.322.016.05.30.9533.02,105
Type 41 · 3 × 25 + 1 × 16 mm²25.06.825.016.05.31.1039.02,705
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Each power core is individually screened with a composite tinned copper / nylon braid (0.21 mm screen wires on 2.5–6 mm²; 0.31 mm on 10–25 mm²).
  • Maximum tensile load applies to the three power conductors combined during reeling or trailing drag.

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 396 mm
Minimum bending radius
198 mm
Min. drum core diameter
≈ 396 mm
Cable weight on drum
210.5 kg
Outer diameter
33.0 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 test & spark testRoutine AC voltage 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 core per SANS 1411-1Every shipping drum
Sample tests
CR sheath oil, flame & mechanical testsPolychloroprene compound tested to SANS 1411-3 and SANS 1520-1Production batch

Inspection certificate

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

Product approvals

SANS 1520-1 Type 41CE · LVDRoHS · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX · SANS 1520-1 · TYPE 41 · 640/1100V · 3 x [mm²] + P
Delivery form
Export seaworthy fumigated wooden drums matched to 6 × OD bend radius
Lengths
Standard drum lengths or custom cut lengths per mine gate-end schedule
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

PDFSANS 1520-1 Type 41 Flexible Mining Trailing Cable (640/1,100 V) – technical datasheet6 sizes · construction, technical data, approvalsXLSXSANS Type 41 (640/1,100 V) spec data (Excel)All 6 sizes with dimensions and data, for your BOM or quotation
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.

What is the difference between SANS Type 41 and SANS Type 61A / 61B?
All three are 640/1,100 V (0.64/1.1 kV) screened flexible mining cables under SANS 1520-1. Type 41 covers smaller conductor sizes (2.5 mm² to 25 mm²) with 3 braid-screened power cores and 1 pilot core for face drills, pumps and auxiliary fans, whereas Type 61A and Type 61B cover heavier machinery sizes (35 mm² to 150 mm²+).
How do the composite tinned-copper / nylon braid screens work?
Each EPR-insulated power core is braided with a composite weave of tinned copper wires and nylon yarns. The tinned copper strands provide an immediate earth-fault current path (0.4 to 1.6 kA for 1 s), while the nylon yarns absorb bending fatigue during reeling and trailing.
How does drum layer winding affect Type 41 current rating?
When operated on a cable reel, heat dissipation decreases with each wound layer. For example, 16 mm² Type 41 is rated at 100 A laid out straight, 85 A with 1 layer on the drum, 65 A with 2 layers, and 45 A with 3 layers.
Why does Type 41 use twin CR sheaths with an internal nylon braid?
The inner CR polychloroprene sheath beds the three screened power cores and pilot into a round profile, the 16-string open nylon braid locks the inner and outer sheaths together against torsional twist, and the outer CR sheath resists rock abrasion, oil and flame.

Request a quote

Get an engineering quote for SANS Type 41 (640/1,100 V)

Your selection and application details are copied into the enquiry form below.

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

03Message for our engineers

SANS Type 41 640/1100 V Flexible Trailing Cable

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:
Send via WhatsApp

640/1,100 V TPU Trailing

SANS Type 61A 640/1,100 V Mining Trailing Cable

Heavy-duty 640/1,100 V 3-core screened + pilot trailing cable with TPU outer sheath.

View product0.64/1.1 kV 3-Pilot CR

SANS Type 61B 0.64/1.1 kV Screened Mining Cable

SANS 1520-1 0.64/1.1 kV copper-screened mining cable (35–150 mm²) with 3 pilot cores.

View product1.9/3.3 kV Trailing

SANS Type 63 1.9/3.3 kV Flexible Trailing Cable

SANS 1520-2 1.9/3.3 kV 3-core screened + pilot trailing and reeling cable (25–240 mm²).

View product
DatasheetRequest a quote