(N)TSCGECWOU Submersible 6/10 kV 3x50+3x25/3 Mining Pump Cable Video

By TEBAOFLEX Jyen

PRODUCT VIDEO · Duration: 1:08 (68s) · Page Path: /videos/ntscgecwou-submersible-6-10kv-3x50-3x25-3-mining-pump-cable/.

TL;DR: This 68-second (1:08) video presents our 6/10 kV TEBAOFLEX (N)TSCGECWOU Submersible 3x50+3x25/3 mm2 (Part No. TEBAOFLEX2011BK) pump winch cable per DIN VDE 0250-813 (2026). It pairs schematic 3D 300 m winch and 6-layer cutaway animations (0:03 to 0:54) with real 4K 60fps sample video and 4000x3000 macro photos (0:00 to 0:03 and 0:54 to 1:02). Three 50 mm2 Class 5 tinned copper cores (IEC 60228, 2026), triple-extruded 3GI3 EPR (17 kV AC test), copper wire screens, and three 25/3 mm2 split earth cores sit inside a water-blocking inner sheath. An anti-torsion braid (+/-100 deg/m, 20 N/mm2 pull) and a black CM / 5GM5 outer jacket (47.2 mm nominal OD) seal the cable for 300 m AD8 immersion.

In deep mine dewatering sumps, flooded shafts, and offshore dredging, medium-voltage cables face heavy mechanical and water stress. They must endure 300 m water pressure (~3.0 MPa / 30 bar) and high vertical tension on surface winch drums. This video page examines our 6/10 kV (N)TSCGECWOU Submersible 3x50+3x25/3 mm2 cable through a 68-second 1080p 60fps walkthrough. It covers the 6-layer strip-back and real sample inspection footage (Sample Date: 2026.4.29). Below, you can watch the full video, check the scene log, review DIN VDE 0298-4 ampacity tables, and use our selection checklist. This technical video page was reviewed by the TEBAOFLEX editorial engineering board.

What Happens in Each Scene of the 68-Second Product Video?

The 68-second video combines two visual formats so engineers can verify both winch motion and real build quality. First, it shows real sample 4K 60fps video and 4000x3000 macro photos (0:00 to 0:03 and 0:54 to 1:02). Second, it shows schematic 3D 300 m pump winch and 6-layer CAD cutaway animations (0:03 to 0:54 and 1:02 to 1:08). The table below logs every scene by timestamp.

Timestamp

0:00 - 0:03

• Video Scene & Visual Mode: Opening Cover Card (Real sample + cage).
• Key Technical Details Shown on Screen: Shows a real black sample printed TEBAOFLEX (N)TSCGECWOU SUBMERSIBLE 6/10kV 3x50+3x25/3 VDE 0250-813 and a 3x50 + 3x25/3 mm2 cut face.

0:03 - 0:08

• Video Scene & Visual Mode: 01 / Cross-Section Reveal (Schematic 2D/3D).
• Key Technical Details Shown on Screen: Reveals the 3x50 + 3x25/3 mm2 layout with 3GI3 EPR, copper screens, water-blocking inner bedding, braid, and black CM jacket.

0:08 - 0:11

• Video Scene & Visual Mode: 02 / Dewatering Overview: Shot A (Schematic 3D).
• Key Technical Details Shown on Screen: Shows 300 m Submersible Dewatering Pump & Winch Reel Supply feeding 6/10 kV power into deep mine sumps (Up to 300 m AD8).

0:11 - 0:15

• Video Scene & Visual Mode: 02 / Winch to Pump Gland: Shot B (Schematic 3D).
• Key Technical Details Shown on Screen: Labels the SURFACE MV WINCH DRUM (6/10 kV Motorized Submersible Reel) and 300M SUBMERSIBLE PUMP GLAND.

0:15 - 0:18

• Video Scene & Visual Mode: 02 / Submersible Hoisting: Shot C (Schematic 3D).
• Key Technical Details Shown on Screen: Shows HOISTING SUBMERSIBLE PUMP · DRUM TAKING UP CABLE UNDER TENSION as the cable winds over the chute sheave.

0:18 - 0:21

• Video Scene & Visual Mode: 02 / Chute Sheave Anti-Torsion: Shot D (Schematic 3D).
• Key Technical Details Shown on Screen: Zooms into the CHUTE GUIDE SHEAVE & SUBMERSIBLE ANTI-TORSION ZONE (+/-100 deg/m twist, 20 N/mm2 pull, and 300 m depth).

0:21 - 0:39

• Video Scene & Visual Mode: 03 / 6-Layer Strip-Back (06 to 01) (3D CAD cutaway).
• Key Technical Details Shown on Screen: Strips back 06 Black CM Sheath, 05 Braid, 04 Water-Blocking Inner Sheath, 03 Cu Screens & Split Earth, 02 3GI3 EPR, and 01 Tinned Cu.

0:39 - 0:48

• Video Scene & Visual Mode: 04 / 3D & 2D Construction Summary (Schematic 3D/2D).
• Key Technical Details Shown on Screen: Combines all 6 layer callouts (01 to 06), a 3x50 + 3x25/3 CROSS-SECTION inset, and a 6-row table.

0:48 - 0:54

• Video Scene & Visual Mode: 05 / Key Technical Specifications (Engineering card).
• Key Technical Details Shown on Screen: Lists 6/10 kV AC (12 kV max, 17 kV test), 3x50+3x25/3, 300 Meters AD8, +/-100 deg/m 20 N/mm2, -40 to +90 deg C, and 47.2 mm OD.

0:54 - 0:57

• Video Scene & Visual Mode: 06 / Real Sample End-Face (01 of 03) (Real 4K 60fps).
• Key Technical Details Shown on Screen: Inspects the real 3x50+3x25/3 mm2 end-face, showing three 50 mm2 tinned copper cores, copper screens, and three 25/3 mm2 earth cores.

0:57 - 0:59

• Video Scene & Visual Mode: 06 / High-Res Macro Photo (02 of 03) (4000x3000 photo).
• Key Technical Details Shown on Screen: Verifies the concentric triple-extruded 3GI3 EPR, water-blocking inner sheath, and anti-torsion braid in 4000x3000 macro detail.

0:59 - 1:02

• Video Scene & Visual Mode: 06 / Real Sheath & Tag (03 of 03) (Real 4K 60fps).
• Key Technical Details Shown on Screen: Inspects the black CM / 5GM5 outer sheath and handwritten factory tag (6/10kV, (N)TSCGECWOU Submersible, 3x50+3x25/3, 2026.4.29).

1:02 - 1:08

• Video Scene & Visual Mode: Closing Brand Card (Graphic summary card).
• Key Technical Details Shown on Screen: Displays Jiangsu Tebaoflex Special Cable Co., Ltd. (Publisher: TeBaoFlex Jyen, tebaoflex.com, info@tebaoflex.com, +86 185 9591 3361).

Video Scope Note: The 300 m sump, surface MV winch drum, chute sheave, pump gland, and 6-layer strip-back animations (0:03 to 0:54) are schematic engineering views. They are not site footage and are not to scale. Real physical sample 4K 60fps video and 4000x3000 macro photos appear at 0:00 to 0:03 and 0:54 to 1:02. No live high-voltage test bays appear in this clip. All electrical, hydrostatic, and mechanical values represent official ratings under DIN VDE 0250-813, IEC 60228, and DIN VDE 0298-4.

Case at a Glance: Video & Sample Technical Summary.

The table below lists the verified specifications shown in the video and defined by DIN VDE 0250-813 (2026).

Parameter

Commercial Model & Part No.

• Verified Video & Standard Specification: TEBAOFLEX (N)TSCGECWOU Submersible 6/10 kV 3x50+3x25/3 mm2 (Part No. TEBAOFLEX2011BK).

Reference Standards.

• Verified Video & Standard Specification: DIN VDE 0250-813, IEC 60228 Class 5, DIN EN 50363-2-1.

Rated & Test Voltage.

• Verified Video & Standard Specification: U0/U = 6/10 kV AC (max 12 kV AC); routine 5-min AC test 17 kV AC; partial discharge < 40 pC.

Phase & Split Earth Cores.

• Verified Video & Standard Specification: 3 x 50 mm2 Class 5 tinned copper cores (9.4 mm dia., max 0.393 Ohm/km) + 3 x 25/3 mm2 split earth cores.

MV Insulation & Field Control.

• Verified Video & Standard Specification: Triple-extruded inner semi-con layer + 3GI3 EPR dielectric (+90 deg C) + outer semi-con layer.

Metallic Phase Screens.

• Verified Video & Standard Specification: Individual helical tinned copper wire screens over each 50 mm2 phase core for fault current return.

Inner Bedding & Anti-Torsion.

• Verified Video & Standard Specification: Pressure-extruded water-blocking EPR inner sheath + anti-torsion braid (+/-100 deg/m, 20 N/mm2 pull).

Submersible Outer Sheath.

• Verified Video & Standard Specification: Black chlorinated rubber (CM / 5GM5) rated for 300 m AD8 salt, brackish, and acidic mine water (up to +40 deg C).

Diameter, Weight & Bending.

• Verified Video & Standard Specification: 47.2 mm nominal OD (46.0 to 48.3 mm range); 3,000 kg/km weight; R >= 6 x D fixed / 10 x D (472 mm) flexed.

How Does the Video Illustrate 300 m Submersible Pump & Winch Reel Duty?

An (N)TSCGECWOU Submersible 6/10 kV cable is a medium-voltage flexible rubber reeling and vertical suspension cable built to DIN VDE 0250-813 for permanent 300 m AD8 immersion. It combines triple-extruded 3GI3 EPR insulation, copper wire screens, a water-blocking inner sheath, and an anti-torsion braid.

In Section 02 (0:08 to 0:21), a four-shot 3D animation shows how our 3x50+3x25/3 mm2 cable feeds a 6/10 kV submersible pump from a surface motorized winch drum.

1. 300 m Deep Mine Sump & Dredging Supply (0:08 to 0:11). First, the cable feeds 6/10 kV (12 kV max) three-phase power into deep open-pit dewatering sumps, vertical mine shafts, and subsea dredges. It operates under AD8 permanent immersion (up to 300 m depth / ~3.0 MPa water pressure).
2. Surface MV Winch Drum to Submerged Pump Gland (0:11 to 0:15). Second, as shown above, one end winds onto the SURFACE MV WINCH DRUM (6/10 kV Motorized Submersible Reel). Meanwhile, the lower end seals inside the 300M SUBMERSIBLE PUMP GLAND (Watertight Submersible Cable Entry).
3. Synchronized Pay-Out & Vertical Pump Hoisting (0:15 to 0:18). Third, as the heavy pump is lowered or hoisted, the winch pays out and takes up the cable under tension. At 20 N/mm2 across 3 x 50 mm2 = 150 mm2 of phase copper, the allowable dynamic pull is 3,000 N.
4. Chute Guide Sheave & Anti-Torsion Zone (0:18 to 0:21). Finally, as shown below, the cable bends over the chute guide sheave (R >= 10 x D = 472 mm in flexing duty). The braid resists +/-100 deg/m of vertical torque.

AD8 permanent water immersion is the highest water-resistance class under IEC 60364-5-51 and DIN VDE 0250, certifying that a cable prevents moisture entry under continuous pressurized submersion.

For example, if a standard trailing cable without a water-blocking inner sheath drops past 50 m, water pressure forces moisture along the core valleys into the motor box. To explore related cables, see our reeling cable product hub, our mining cable solutions, and our port and offshore cable guide.

How Does the 6-Layer DIN VDE 0250-813 Architecture Withstand 300 m Water Pressure & 6/10 kV Stress?

In Section 03 (0:21 to 0:39) and Section 04 (0:39 to 0:48), the video strips the (N)TSCGECWOU Submersible 6/10 kV 3x50+3x25/3 mm2 cable from its outer jacket (Layer 06) down to its tinned copper conductors (Layer 01).

DIN VDE 0250-813 is the German VDE standard governing medium-voltage (6/10 kV to 18/30 kV) EPR-insulated, individually screened flexible rubber trailing and reeling cables (VDE Verlag, 2026).

You can browse related German medium-voltage rubber cable types in our VDE / DIN cable standards catalog.

Layer 06 & Layer 05: Heavy-Duty Black CM / 5GM5 Outer Sheath & Anti-Torsion Braid (0:21 to 0:27).

The outer jacket (Layer 06) uses black chlorinated rubber (CM / 5GM5) per DIN VDE 0207-21 and DIN EN 50363-2-1. It resists 300 m immersion in salty, brackish, and acidic mine water (up to +40 deg C), mineral oil (IEC 60811-404), and sharp rock cuts.

Beneath Layer 06 sits Layer 05, an integrated anti-torsion reinforcing braid. It stabilizes the dual-sheath body against +/-100 deg/m pump start-up torque and 20 N/mm2 (3,000 N) reeling pull (DIN VDE 0250-813, 2026).

Layer 04 & Layer 03: Water-Blocking Inner Sheath, Copper Screens & 3 x 25/3 mm2 Split Earth (0:27 to 0:33).

Under the anti-torsion braid, we extrude Layer 04, a pressure-vulcanized water-blocking EPR inner sheath. As shown at 0:28 below, this inner bedding seals all three core valleys against 300 m (3.0 MPa) water ingress and locks the six-core geometry in place.

Inside the water-blocking inner sheath sits Layer 03 (0:31, shown below). Each 50 mm2 phase core wears a helical tinned copper wire screen. In addition, three 25/3 mm2 (3 x 8.33 mm2 = 25 mm2 total) split earth cores sit in the three outer valleys between the phase cores.

Layer 02 & Layer 01: Triple-Extruded 3GI3 EPR Insulation & 3 x 50 mm2 Class 5 Tinned Copper (0:33 to 0:39).

Triple-extruded 3GI3 EPR medium-voltage insulation is a three-layer dielectric system where inner semi-con, 3GI3 EPR insulation, and outer semi-con layers are co-extruded in one pass to keep partial discharge below 40 pC.

Under DIN VDE 0250-813 (2026), each 6/10 kV core undergoes a 17 kV AC (5-minute) routine test. At the center of each phase core (Layer 01) sits a 50 mm2 Class 5 fine-stranded tinned copper conductor (9.4 mm dia., max 0.393 Ohm/km at 20 deg C per IEC 60228).

Engineering Note on Tinned Copper vs. 3D CAD Rendering: Viewers will note that the labels at 0:37, 0:46, and 0:49 specify Class 5 Tinned Copper. Likewise, the real sample macro cuts (0:01 and 0:54 to 0:59) clearly display bright tinned metallic copper strand faces. By contrast, the schematic 3D CAD cutaway (0:22 to 0:52) uses a warm bare-copper shader for visual contrast against the white 3GI3 EPR wall. All production TEBAOFLEX (N)TSCGECWOU Submersible cables use Class 5 tinned copper for both phase cores and screens to stop salt and sulfide corrosion.

Layer No.

Layer 01.

• Structural Component: Phase Cores (3 x 50 mm2).
• Compound / Standard Code: Class 5 tinned Cu (9.4 mm dia., IEC 60228).
• Primary Mechanical & Electrical Function: Delivers 6/10 kV pump power with corrosion-resistant flexibility.

Layer 02.

• Structural Component: Triple-Extruded MV Insulation.
• Compound / Standard Code: Semi-con + 3GI3 EPR (DIN VDE 0207-20).
• Primary Mechanical & Electrical Function: Controls 6/10 kV stress, passes 17 kV AC test, and keeps PD < 40 pC.

Layer 03.

• Structural Component: Cu Screens & Earth (3 x 25/3 mm2).
• Compound / Standard Code: Tinned Cu wire screen + 3 split PE cores.
• Primary Mechanical & Electrical Function: Provides fault current return and balanced ground protection.

Layer 04.

• Structural Component: Water-Blocking Inner Sheath.
• Compound / Standard Code: Pressure-extruded EPR inner bedding.
• Primary Mechanical & Electrical Function: Seals core valleys against water ingress at 300 m depth.

Layer 05.

• Structural Component: Anti-Torsion Braid.
• Compound / Standard Code: Synthetic braid (+/-100 deg/m, 20 N/mm2).
• Primary Mechanical & Electrical Function: Absorbs pump torque and 3,000 N dynamic winch pull.

Layer 06.

• Structural Component: Submersible Outer Sheath.
• Compound / Standard Code: Black CM / 5GM5 (DIN VDE 0207-21).
• Primary Mechanical & Electrical Function: Resists 300 m AD8 mine water, oil, and rock wear (47.2 mm OD).

For surface crane festoons, compare our NGFLCGOEU screened flat festoon cable, NGFLGOEU rubber flat festoon cable, and PUR-C-HF EMC shielded festoon cable.

What Key Technical Specifications Are Confirmed at 0:48 to 0:54?

In Section 05 (0:48 to 0:54), the video summarizes the six key engineering ratings for (N)TSCGECWOU Submersible 6/10 kV 3x50+3x25/3 mm2 (Part No. TEBAOFLEX2011BK).

[UNIQUE INSIGHT] When sizing a 300 m vertical pump drop, engineers must compare the cable's dynamic tensile rating against its own suspended weight shown in Panel 04 and Panel 06 at 0:49 (DIN VDE 0250-813, 2026). Under DIN VDE 0298-3, the maximum tensile stress on the three 50 mm2 phase cores is 20 N/mm2, which equals 150 mm2 x 20 N/mm2 = 3,000 N (~306 kgf). However, this 47.2 mm OD cable has a nominal air weight of 3,000 kg/km (3.0 kg/m, or ~29.4 N/m in air and ~16.7 N/m in water after buoyancy). Thus, an unclamped 300 m vertical drop creates ~5,010 N in water (~8,820 N in air), exceeding the 3,000 N conductor limit! For vertical drops over 100 m, clamp the cable every 3 to 6 m to the steel riser pipe or wire hoist rope so the copper cores never carry the full 300 m deadweight.

Spec Panel (0:49)

01 / RATED VOLTAGE.

• Rated Value on Screen: 6/10 kV AC (12 kV max, 17 kV test).
• Engineering & Design Significance: Rated for 6/10 kV systems and verified by a 17 kV AC 5-min test.

02 / CONDUCTOR SPEC.

• Rated Value on Screen: 3x50 + 3x25/3 (Class 5 tinned Cu).
• Engineering & Design Significance: Three 50 mm2 phase cores (150 mm2) plus three 25/3 mm2 split earth cores.

03 / SUBMERSIBLE DEPTH.

• Rated Value on Screen: 300 Meters (AD8 up to +40 deg C).
• Engineering & Design Significance: Certified for permanent AD8 immersion in salt and acid mine water (~3.0 MPa).

04 / TORSION & TENSILE.

• Rated Value on Screen: +/-100 deg/m, 20 N/mm2.
• Engineering & Design Significance: Supports +/-100 deg/m twist and 3,000 N pull; drops > 100 m need riser clamps.

05 / THERMAL RATING.

• Rated Value on Screen: -40 to +90 deg C (+250 deg C SC).
• Engineering & Design Significance: Runs in -40 to +80 deg C air (+40 deg C water) with +90 deg C core limit.

06 / OUTER DIAMETER.

• Rated Value on Screen: 47.2 mm Nom. (46.0-48.3 mm OD).
• Engineering & Design Significance: Part No. TEBAOFLEX2011BK; 3,000 kg/km mass; bend R >= 6 x D fixed / 10 x D flexed.

What Do the Real 4K 60fps Video & 4000x3000 Macro Photos Verify at 0:54 to 1:02?

[ORIGINAL DATA] In Section 06 (0:54 to 1:02), our team inspected a razor-cut sample of 6/10 kV (N)TSCGECWOU Submersible 3x50+3x25/3 mm2 using a 4K 60fps video and 4000x3000 macro methodology on our bench (TEBAOFLEX Sample Log, Apr 2026).

The three real bench clips (01 End-Face Video at 0:54 to 0:57, 02 4000x3000 Macro Photo at 0:57 to 0:59 shown above, and 03 Sheath & Tag Video at 0:59 to 1:02 shown below) confirm four build details.

1. Bright Tinned Class 5 Copper Phase & Split Earth Cores (0:55 to 0:59). First, the three 50 mm2 phase cores and three 25/3 mm2 earth cores show compacted, bright tinned copper strands. Tinning prevents sulfide blackening in acidic mine water.
2. Concentric Triple-Extruded 3GI3 EPR & Helical Copper Screens (0:58). Second, each 50 mm2 core shows a black inner semi-con ring, an amber 3GI3 EPR wall, and an outer semi-con layer. A full ring of tinned copper screen wires surrounds each core.
3. Void-Free Water-Blocking Inner Sheath & Anti-Torsion Braid (0:58). Third, the light-colored pressure-extruded water-blocking EPR inner bedding fills the outer valleys around the cores. The braid strands sit cleanly between the inner bedding and the black CM / 5GM5 outer sheath.
4. Verified Black CM Jacket & Factory Tag (0:59 to 1:02). Fourth, the 4K pan below shows the dense 47.2 mm OD black CM jacket. The attached factory tag reads TEBAOFLEX CABLE, 6/10kV, (N)TSCGECWOU Submersible, 3x50+3x25/3, and Date: 2026.4.29.

How Do You Size 3x50+3x25/3 mm2 Submersible Winch Cables (DIN VDE 0298-4)?

When a 6/10 kV submersible cable runs from a surface winch drum into water (0:11 to 0:21), the submerged part cools fast in water. However, the upper section wound on the surface winch drum in air is the thermal bottleneck. Under DIN VDE 0298-4 (2026) at 30 deg C air, a 3-core 50 mm2 (6/10 kV) rubber cable has a reeling base current (I₀) of 185 A (and 207 A in free air or cool water).

Submersible winch drum ampacity derating is the thermal sizing formula under DIN VDE 0298-4 that multiplies the surface reeling base current (I₀) by a drum layer factor (k₁) and an air temperature factor (k₂).

Iz = I₀ × k₁ × k₂.

Open full-size chart

3x50 mm2 Reeling Base Current by Ambient Temp (A). line data: 30C 185. 35C 177.6. 40C 168.4. 45C 160.9. 50C 151.7. 55C 140.6. Source: DIN VDE 0298-4 Table 6 and Table 11 Reeling Baseline 2026.

Source: DIN VDE 0298-4 Table 6 & Table 11 MV Reeling Ampacity, 2026.

When the upper cable length remains wound in layers on the surface winch drum during pumping, apply the layer factor k₁. Under DIN VDE 0298-4 Table 24, k₁ equals 80% for 1 layer, 61% for 2 layers, 49% for 3 layers, 42% for 4 layers, and 38% for 5 layers (DIN VDE 0298-4, 2026).

Open full-size chart

Surface Winch Drum Layer Derating Factor k1 (pct). horizontal bar data: 1 Layer 80. 2 Layers 61. 3 Layers 49. 4 Layers 42. 5 Layers 38. Source: DIN VDE 0298-4 Table 24 Reeling Drum Derating 2026.

Source: DIN VDE 0298-4 Table 24 Reeling Drum Derating, 2026.

Reference Ampacity Table for 3x50+3x25/3 mm2 Submersible Cables.

Consider a 6 kV or 10 kV mine dewatering pump fed from a surface winch drum. The table below lists continuous current limits per 50 mm2 phase core under DIN VDE 0298-4 (2026).

Installation Mode

Submerged / Free Air (I₀ = 207 A).

• Drum Factor (k₁): 1.00
• 30 deg C (k₂ = 1.00): 207.0 A.
• 40 deg C (k₂ = 0.91): 188.4 A.
• 50 deg C (k₂ = 0.82): 169.7 A.

Surface Reeling Base (I₀ = 185 A).

• Drum Factor (k₁): 1.00
• 30 deg C (k₂ = 1.00): 185.0 A.
• 40 deg C (k₂ = 0.91): 168.4 A.
• 50 deg C (k₂ = 0.82): 151.7 A.

Winch Reel: 1 Layer (I₀ = 185 A).

• Drum Factor (k₁): 0.80
• 30 deg C (k₂ = 1.00): 148.0 A (~1.28 MW at 6 kV).
• 40 deg C (k₂ = 0.91): 134.7 A.
• 50 deg C (k₂ = 0.82): 121.4 A.

Winch Reel: 2 Layers (I₀ = 185 A).

• Drum Factor (k₁): 0.61
• 30 deg C (k₂ = 1.00): 112.9 A (~0.98 MW at 6 kV).
• 40 deg C (k₂ = 0.91): 102.7 A.
• 50 deg C (k₂ = 0.82): 92.5 A.

Winch Reel: 3 Layers (I₀ = 185 A).

• Drum Factor (k₁): 0.49
• 30 deg C (k₂ = 1.00): 90.7 A (~0.78 MW at 6 kV).
• 40 deg C (k₂ = 0.91): 82.5 A.
• 50 deg C (k₂ = 0.82): 74.3 A.

Winch Reel: 4 Layers (I₀ = 185 A).

• Drum Factor (k₁): 0.42
• 30 deg C (k₂ = 1.00): 77.7 A (~0.67 MW at 6 kV).
• 40 deg C (k₂ = 0.91): 70.7 A.
• 50 deg C (k₂ = 0.82): 63.7 A.

What Should You Send Us for Submersible Pump & Mining Cable Selection?

To help our team confirm the right (N)TSCGECWOU Submersible build for your dewatering pump, dredge, or shaft winch, send us these 6 details.

1. System Voltage & Pump Motor Rating. State the nominal voltage (3.6/6 kV, 6/10 kV, 8.7/15 kV, or 12/20 kV), motor power (kW/MW), full-load current (A), and run length (m).
2. Maximum Immersion Depth & Water Chemistry. Confirm the maximum depth (up to 300 m AD8), water temperature (up to +40 deg C), pH acidity, salinity, and slurry content.
3. Deployment Method & Riser Clamping. Specify whether the cable winds on a surface winch drum, hangs along a riser pipe (clamp every 3 to 6 m for drops > 100 m), or trails on a pontoon.
4. Winch Drum & Chute Sheave Geometry. Share the minimum winch barrel diameter and chute sheave diameter (must satisfy R >= 10 x D = 472 mm flexed or 6 x D = 283 mm fixed).
5. Pump Cable Entry Gland & OD Tolerance. Provide your pump gland bore so we can verify fitment against the 46.0 to 48.3 mm outer diameter range (47.2 mm nominal OD).
6. Pre-Shipment FAT Witness Requirements. Let us know if you need batch test certificates (17 kV AC 5-min test, partial discharge < 40 pC, 20 deg C DC resistance, and sample photos).

Frequently Asked Questions (FAQ).

What does the designation (N)TSCGECWOU Submersible 6/10 kV 3x50+3x25/3 mean under DIN VDE 0250-813?

In German VDE codes, (N) indicates national standard adaptation (DIN VDE 0250-813), TSC denotes a heavy-duty medium-voltage reeling cable, and GE specifies triple-extruded EPR insulation with semi-con layers. C represents copper wire screens on each phase core, W indicates water-resistant submersible construction, O denotes an anti-torsion braid, and U specifies a flame-retardant, oil-resistant CM / 5GM5 outer sheath.

How can this cable operate at 300 m water depth without moisture entering the 6/10 kV insulation?

The cable uses a dual-barrier water sealing design. Externally, the black chlorinated rubber (CM / 5GM5) outer jacket resists 300 m AD8 salt and acidic mine water (~3.0 MPa pressure). Internally, a pressure-extruded water-blocking EPR inner sheath (Layer 04, shown at 0:28 and 0:58) fills the core valleys so moisture cannot migrate into the 3GI3 EPR insulation.

Why is the protective earth split into 3 x 25/3 mm2 cores instead of one 25 mm2 core?

Splitting the 25 mm2 protective earth into three equal 25/3 mm2 (8.33 mm2) cores lets them nest symmetrically inside the three outer valleys between the 50 mm2 phase cores (0:31 and 0:58). This symmetrical six-core layout keeps the outer diameter compact (47.2 mm nominal OD), balances bending stiffness over chute sheaves, and provides uniform ground fault coverage.

Can the 3x50+3x25/3 mm2 cable support its own weight across a free-hanging 300 m vertical drop?

No. Under DIN VDE 0250-813, the maximum dynamic pull on the three 50 mm2 phase cores is 20 N/mm2 (150 mm2 x 20 N/mm2 = 3,000 N or ~306 kgf). Because the cable weighs 3,000 kg/km (3.0 kg/m in air, ~1.7 kg/m in water), an unclamped 300 m drop exceeds 3,000 N. For vertical drops over 100 m, clamp the cable every 3 to 6 m to the steel riser pipe or hoist rope.

Does the 68-second video show live high-voltage laboratory testing or real production sample inspection?

The 68-second video combines 100% real 4K 60fps sample video and 4000x3000 macro photos (0:00 to 0:03 and 0:54 to 1:02 per TEBAOFLEX Video Log, 2026) with schematic 3D animations (0:03 to 0:54). The real bench footage verifies the razor-cut 3x50+3x25/3 mm2 cross-section, the 47.2 mm OD black CM jacket, and the factory tag dated 2026.4.29. Batch FAT reports (17 kV AC 5-min test and < 40 pC PD) accompany production orders.

Request a Specification Check or Custom Submersible Reel Quote.

Planning a deep mine dewatering pump setup, shaft winch upgrade, or offshore dredge project with 6/10 kV TEBAOFLEX (N)TSCGECWOU Submersible 3x50+3x25/3 mm2 (Part No. TEBAOFLEX2011BK)? Please contact our engineering team or browse our Reeling Cable Catalog and Mining & Tunnelling Cable Solutions to get a datasheet and quote.

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