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Product

IEC 60519-4 EAF water-cooled cableIEC 60519-4 & JB/T 6314300–6,000 mm² · 10–90 kAEAF, Ladle & Submerged-Arc Furnaces

EAF Water-Cooled Cable300–6,000 mm² (10–90 kA) water-cooled flexible secondary jumper cable for EAF & LF

Heavy-duty high-current water-cooled flexible feeder cable (EAF Water-Cooled Cable) built to IEC 60519-4 and JB/T 6314 with hollow concentric ETP/OFHC copper rope strands around a non-collapsing central core, forged/brazed copper terminal heads and.

Water-resistant
Anti-torsion braid
Flame-retardant
Approved
Order designation
WC-EAF-3500
Hose OD ≈
120.0 mm
Rated current
58.0 kA
Water flow
100 L/min
Min. bend R
1,200 mm
All sizes (7)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Cross-section
300–6,000 mm²
effective hollow copper ring
Rated current
10 to 90 kA
at 18–25 A/mm² current density
Coolant press.
0.4–0.8 MPa
tested to 1.2–1.6 MPa burst
Terminal heads
Forged T2 Cu
silver-brazed or cold-swaged
Outer hose
Slag-shield EPDM
cord-reinforced + glass/silicone
Min. bend R
10 × Hose OD
dynamic furnace tilting & swing

Typical values for this cable type, based on IEC 60519-4 / JB/T 6314 / EN 50525 — confirmed in the datasheet and quotation for your order.

Application fit

Is EAF Water-Cooled Cable right for your machine?

Forms the flexible secondary catenary link between the transformer delta closure and the movable water-cooled electrode mast arms on AC/DC Electric Arc Furnaces (EAF), Ladle Refining Furnaces (LF) and Submerged Arc Furnaces (SAF).

Furnace, kiln & high-temp zone

Suitable

Engineered for continuous furnace tilting (±40°), roof swing (70°–90°) and vertical electrode mast regulation under molten steel splash.

Immersion & wet locations

Suitable

Direct internal water cooling through the hollow copper rope annulus removes 100 % of I²R and skin-effect Joule heat.

Free-hanging vertical run

Suitable

Suspended in a free U-catenary between transformer bus tubes and electrode arms with rubber bumper rings.

Typical machinesAC & DC Steelmaking Electric Arc Furnaces (EAF)Secondary Metallurgy Ladle Furnaces (LF)Ferroalloy & Silicon Submerged Arc Furnaces (SAF)Electroslag Remelting (ESR) & Vacuum Arc Furnaces

Construction

Layer by layer

Shown: WC-EAF-3500 (3,500 mm² · 58 kA) with perforated synthetic-rubber/monofilament support core, hollow ring of tinned/bare Class 5/6 copper sub-ropes, forged oxygen-free copper terminal heads and textile-reinforced EPDM outer cooling hose with vulcanised bumper rings.

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Hollow concentric rope of fine copper sub-cables6 to 18 stranded sub-ropes of Ø 0.20–0.40 mm bare or tinned ETP/OFHC copper wires laid atMaximises surface-to-volume ratio for water cooling and reduces AC skin/proximity reactance at 50/60 Hz
2Central coolant support core / spiralPerforated synthetic-rubber hose or non-magnetic stainless/PTFE helical support springMaintains an open central water channel and forces turbulent coolant flow through the copper rope interstices
3Forged & silver-brazed hollow copper terminal headsOne-piece forged Cu-ETP (CW004A) water-cooled palm or cylindrical clamp terminals withProvides < 5 µΩ termination resistance and leak-free hydraulic manifold ports
4Multi-ply aramid/polyester reinforced EPDM outer hoseSeamless insulating EPDM rubber inner tube + high-tensile synthetic cord plies +Withstands 1.2 MPa water pressure, electrodynamic interphase repulsions and +500 °C radiant heat

WC-EAF Standard Catenary Jumper (500–6,000 mm²)

Hollow copper rope + EPDM rubber hose + external rubber anti-chafing bumper rings

WC-EAF +PyroShield Slag Sleeve

Adds replaceable iron-oxide red silicone-coated fiberglass fire sleeve and stainless spring guard

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 60519-4 / JB/T 6314 / EN 50525. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated secondary operating voltage
Up to 1,200 V / 1,800 V AC or DC (3.5 kV AC dielectric test on outer hose)
Current rating & design current density
10 kA to 90 kA continuous (15 to 25 A/mm² water-cooled copper density)
Terminal-to-rope contact resistance
≤ 3 to 8 µΩ per terminal head (temperature rise ΔT ≤ 25 K)

Thermal

Cooling water inlet / outlet temperature
Inlet +5 °C to +35 °C · Outlet max. +55 °C (ΔT ≤ 15–20 K)
Required cooling water flow rate
18 to 160 L/min per cable at 0.4–0.6 MPa differential pressure

Mechanical

Hose working & proof water pressure
0.4–0.8 MPa working · 1.2 MPa routine hydrostatic proof test (30 min)
Minimum dynamic bending radius
10 × outer hose diameter (withstands > 150,000 furnace tilt/swing cycles)

Resistance

Outer hose dielectric breakdown strength
≥ 3,500 V AC rms (50 Hz, 1 min) and IR ≥ 20 MΩ in dry/wet state
Radiant heat & molten slag protection
EPDM rubber cover + rubber bumper rings + optional +1,100 °C peak slag

Reference standards

Governing furnace cable standards
IEC 60519-4 (Arc furnace safety), JB/T 6314 & EN 60204-1
Factory QA & material compliance
EN 10204 3.1 routine test certificate · RoHS 2 & REACH compliant

Identification

Custom engineering parameters
Exact pin-to-pin length (3.5–14 m), palm bolt pattern or cylindrical Ø &
Customs tariff (HS)
8544.42 / 8514.90

Sizes

7 standard EAF & Ladle Furnace water-cooled feeder cable sizes

Copper cross-sections from 500 mm² to 6,000 mm² manufactured to exact furnace catenary length.

Cross-section, current rating & cooling water flow
Order designationCopper areaMax. voltageHose OD ≈
mm		Rated current
kA		Water flow
L/min		Min. bend R
mm		Enquiry
Ladle Furnace (LF) & Small EAF Water-Cooled Cables (500–1,500 mm²)
WC-EAF-500500 mm²1.2 kV56.012.522560
WC-EAF-10001,000 mm²1.2 kV72.022.035720
WC-EAF-15001,500 mm²1.5 kV84.030.048840
UHP AC/DC Electric Arc Furnace & SAF Main Feeders (2,500–6,000 mm²)
WC-EAF-25002,500 mm²1.5 kV104.045.0751,040
WC-EAF-35003,500 mm²1.5 kV120.058.01001,200
WC-EAF-45004,500 mm²1.8 kV136.070.01251,360
WC-EAF-60006,000 mm²1.8 kV155.088.01601,550
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Supplied as complete factory-tested assemblies with flat-palm or cylindrical clamp copper terminals and BSP/NPT/flanged water ports.

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
1.2 MPa (12 bar) 30-min hydrostatic pressure & flow-rate testZero water seepage at hose body or stainless terminal clamping ringsEvery cable assembly
Micro-ohm DC resistance & 3.5 kV AC outer-hose dielectric testTerminal contact resistance ≤ 5 µΩ; hose passes 3.5 kV ACEvery cable assembly

Inspection certificate

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

Product approvals

IEC 60519-4 & JB/T 6314 Arc Furnace Certified100 % 1.2 MPa Hydrostatic & Micro-Ohm TestedCE & ISO 9001 Heavy-Current QA

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

Stamped on Cu terminal head: TEBAOFLEX WC-EAF <mm²> L=<mm> SERIAL# + test pressure
Delivery form
Non-returnable fumigated wooden or steel drums
Standard lengths
250 m · 500 m · 1000 m standard drums
MOQ
250 m (stock sizes) · 500 m (custom)
Lead time
3–5 weeks ex-works
Incoterms
EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFEAF Water-Cooled Cable – technical datasheet7 sizes · construction, technical data, approvalsXLSXEAF Water-Cooled Cable spec data (Excel)All 7 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.

Why are EAF water-cooled cables built as a hollow ring of copper ropes around a central support core?
At 50/60 Hz and 30–90 kA, skin effect forces AC current into the outer 8–10 mm periphery of a solid conductor, leaving the centre idle. Winding copper sub-ropes in a hollow annulus around a perforated central support core places 100 % of the copper in the active skin zone while forcing cooling water directly through the strands.
What water quality is required for EAF water-cooled power cables?
Closed-loop soft or demineralised cooling water with electrical conductivity ≤ 200 µS/cm, pH 7.0–8.5, suspended solids < 20 mg/L and inlet pressure 0.4–0.6 MPa prevents scale deposition and electrolytic corrosion inside the copper rope.
What information is required to order a replacement EAF or Ladle Furnace water-cooled cable?
Specify the nominal copper cross-section (mm²) or operating current (kA), exact centre-to-centre or total length (mm), terminal head type (flat drilled palm with bolt layout or cylindrical bus-tube OD) and water port thread/flange size.
What factory routine tests and certificates are supplied with EAF Water-Cooled Cable?
Every production drum of EAF Water-Cooled Cable undergoes 100 % conductor DC resistance measurement at 20 °C, high-voltage AC/DC dielectric withstand testing, and dimensional verification per IEC 60519-4 / JB/T 6314 / EN 50525, supplied with an EN 10204 3.1 inspection certificate.

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EAF Water-Cooled Cable

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