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instrumentation cable series15 kV Galvanic BarrierUltra-Low Coupling CapDual Cu + Foil EMC Shield

GALVANICABLE Galvanically Isolated Industrial Signal TransmissionHigh-dielectric galvanically isolated industrial signal & HV impulse sensing cable

GALVANICABLE Galvanically Isolated Industrial Signal Transmission Cable engineered with high-dielectric XLPE/FEP/kapton barrier insulation (up to 15 kV rms galvanic isolation), low-capacitance balanced twisted pairs, and dual.

≥ 120 dB CMRR Isolation
Double Isolated Screen
IEC 60332-1-2 LSZH
Industrial PUR / LSZH
Order designation
GALVANICABLE 1P×0.50-10KV
Outer Ø ≈
9.8 mm
Weight ≈
118 kg/km
AC Isolation
10.0 kV rms
Barrier capacitance
16 pF/m
All sizes (4)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Galvanic test
10 to 15 kV AC
25 kV DC barrier withstand
Coupling cap.
≤ 18 pF/m
Core-to-outer-screen C
Impedance
100 / 120 Ω
Balanced differential pair
CMRR @ 1 MHz
≥ 110 dB
High dV/dt IGBT noise immunity
Dual shields
Isolated inner/o
3.0 kV inter-screen barrier
Temperature
-40 to +105 °C
XLPE/FEP core · LSZH/PUR jacket

Typical values for this cable type, based on IEC 61010-1 / IEC 60664-1 / EN 50288-7 — confirmed in the datasheet and quotation for your order.

Application fit

Is GALVANICABLE right for your machine?

Eliminates ground-loop currents and common-mode voltage breakdown when routing millivolt/digital measurement signals across high-voltage potential differences, medium-voltage IGBT converters and HVDC valve halls.

Switchgear & control cabinet wiring

Suitable

Bridges floating high-voltage sensor potentials and grounded PLC/FPGA racks inside MV VFD and HVDC cabinets.

VFD inverter to AC motor screened feeder

Suitable

Ultra-low inter-shield capacitance (< 18 pF/m) blocks common-mode currents from > 50 kV/µs SiC/IGBT switching.

Fixed installation

Suitable

Connects substation shunt/Rogowski sensors, plasma tokamak probes and railway traction monitoring units.

Energy chain / drag chain

Not suitable

High-dielectric triaxial/twinax isolated signal cable; not for tight-radius high-cycle drag chains.

Use PUR-HF Drag-Chain Cable
Typical machinesMV / HV IGBT & SiC Inverter DiagnosticsHVDC Valve Hall & Substation TelemetryPulsed-Power, Accelerator & Plasma DiagnosticsRailway Traction & Floating Battery (BESS) BMSElectrochemical Cell Line Potential Sensing

Construction

Layer by layer

GALVANICABLE showing silver/tinned copper twisted pairs, low-permittivity foam-FEP/XLPE insulation, inner floating guard screen, high-dielectric polyimide/XLPE galvanic barrier, outer earth braid screen, and flame-retardant LSZH/PUR jacket.

123456
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Precision-balanced tinned/silver copper pairsStranded tinned or silver-plated OFHC copper conductors (0.25, 0.50, 0.75 mm² / 24–18 AWG) twisted with tight lay symmetryMinimizes differential-to-common-mode conversion
2Low-permittivity FEP / cellular XLPE dielectricGas-injected cellular XLPE or fluoropolymer FEP primary insulation (εr ≤ 1.65)Lowers mutual capacitance to ≤ 38 pF/m
3Inner floating guard screen (local potential)100 % Al/PET tape + tinned copper braid referenced to the floating HV sensor chassisGuards signal conductors from capacitive displacement current
4High-voltage galvanic barrier dielectricMulti-layer overlapped polyimide (Kapton-grade) film + extruded high-dielectric XLPE barrier wallTested to 10 kV / 15 kV AC rms and 25 kV DC between inner and outer screens
5Outer grounded EMC braid screenTinned copper wire braid (≥ 85 % coverage) bonded to control-room earthSafely diverts capacitive fault and EMI currents to ground
6Flame-retardant LSZH or oil-resistant PUR jacketHalogen-free SHF1/LSZH compound per IEC 60332-3-24 or industrial PUR outer sheathUV, oil and tracking resistant

GALVANICABLE-10KV (1P / 2P × 0.50 mm²)

10 kV AC rms galvanically isolated twinax/multipair signal cable with dual isolated screens

GALVANICABLE-15KV-HV (1P × 0.75 mm²)

15 kV AC rms / 30 kV impulse galvanically isolated diagnostic cable for MV drives & substations

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 61010-1 / IEC 60664-1 / EN 50288-7. Values for your order are confirmed in the datasheet and quotation.

Electrical

Galvanic isolation withstand
10 kV AC rms (Standard) · 15 kV AC rms / 25 kV DC (HV Series)
Partial discharge extinction
≥ 6.0 kV rms (< 5 pC partial discharge)
Mutual / barrier capacitance
≤ 38 pF/m (pair) · ≤ 18 pF/m (inner-to-outer screen)
Differential impedance
100 ± 5 Ω or 120 ± 6 Ω (RS-485 / CAN / LVDS compatible)

Thermal

Operating temperature
-40 °C to +105 °C (fixed) · -20 °C to +80 °C (flexing)
Short-circuit core rating
+250 °C (FEP / XLPE core)
Thermal stability
Zero dielectric shrinkage under impulse heating

Mechanical

Min. bend radius (fixed)
8 × OD
Min. bend radius (installation)
12 × OD
Crush & abrasion resistance
≥ 1,500 N/100 mm crush resistance

Resistance

dV/dt transient immunity
Withstands > 50 kV/µs SiC/IGBT common-mode edges
Flame & halogen-free
IEC 60332-1-2, IEC 60332-3-24, IEC 60754-1/2
Oil & chemical resistance
EN 60811-404 mineral oil & transformer fluid resistant

Reference standards

Insulation coordination
IEC 60664-1 & IEC 61010-1 Reinforced Insulation
Instrumentation construction
EN 50288-7 & IEC 60270 (PD tested)
RoHS & REACH
2011/65/EU & EC 1907/2006 compliant

Identification

Sheath colour
Black with Orange HV-isolation longitudinal stripe
Customs tariff (HS)
8544.4993
Routine test certificate
Includes 100 % AC hi-pot and < 5 pC partial discharge log

Sizes

4 standard GALVANICABLE isolated signal configurations

Galvanic withstand voltage, outer diameter, weight and inter-screen coupling capacitance.

Dimensions & galvanic isolation ratings
Order designationPairs & isolation ratingOuter Ø ≈
mm		Weight ≈
kg/km		AC Isolation
kV rms		Screen-Screen C
pF/m		Enquiry
Galvanically Isolated Twinax & Multipair Signal Cables
GALVANICABLE 1P×0.50-10KV1 Pair × 0.50 mm² · 10 kV AC Twinax9.811810.016
GALVANICABLE 2P×0.50-10KV2 Pairs × 0.50 mm² · 10 kV AC12.618510.022
GALVANICABLE 4P×0.50-10KV4 Pairs × 0.50 mm² · 10 kV AC15.227010.028
GALVANICABLE 1P×0.75-15KV1 Pair × 0.75 mm² · 15 kV AC / 25 kV DC12.417215.014
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Every drum is 100 % routine tested for partial discharge (< 5 pC per IEC 60270) across the galvanic barrier wall.

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
100 % 10 kV / 15 kV AC barrier hi-pot & IEC 60270 partial discharge testZero breakdown for 5 min and PD < 5 pC at 6.0 kV rmsEvery manufactured drum length
Sample tests
1.2/50 µs lightning/switching impulse withstand testWithstands 25–30 kV peak impulse between inner and outer screensType qualification
Common-mode rejection & transfer impedance sweepCMRR ≥ 110 dB @ 1 MHz and ZT ≤ 15 mΩ/mType qualification

Inspection certificate

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

Product approvals

IEC 60664-1 & IEC 61010-1IEC 60270 Partial DischargeEN 50288-7 & RoHS 2

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX GALVANICABLE 10kV/15kV ISOLATED SIGNAL IEC 60664-1
Delivery form
Fumigated wooden drums, steel reels or precision spools
Standard lengths
500 m · 1000 m (or custom cut/spooled lengths)
MOQ
100 m (standard) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFGALVANICABLE Galvanically Isolated Industrial Signal Transmission – technical datasheet4 sizes · construction, technical data, approvalsXLSXGALVANICABLE spec data (Excel)All 4 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.

How does GALVANICABLE provide galvanic isolation when it uses metallic copper conductors?
In high-voltage drives, substations and pulsed-power systems, sensors (such as current shunts, gate-driver monitors or thermocouple probes) sit on a floating high-voltage busbar while the data acquisition rack is referenced to earth. GALVANICABLE surrounds the inner twisted pair and its floating guard screen with a reinforced 10–15 kV polyimide/XLPE barrier before applying the outer earth screen, allowing the cable to safely bridge the HV boundary to an isolation amplifier or transformer.
Why are two separate isolated screens (inner guard + outer earth) required instead of a single overall shield?
If a single shield is grounded at the control room, capacitive displacement currents (I = C · dV/dt) from fast IGBT/SiC switching flow directly from the HV sensor into the signal conductors. The inner guard screen is tied to the local floating HV potential to intercept displacement current, while the outer screen is tied to earth across the 10–15 kV barrier.
Why is Partial Discharge (PD < 5 pC) testing critical on an isolated signal cable?
Even if a cable survives a 1-minute 10 kV hi-pot test, microscopic air voids inside the barrier would ionize continuously under 3–6 kV PWM switching, injecting broadband RF noise directly into the signal pair and eroding the insulation.
When should we use a non-metallic optical cable instead of GALVANICABLE?
For pure digital links over > 50 kV where optical transceivers can be powered at the HV deck, use a dielectric optical cable (such as GJFJV or GYFTY). Use GALVANICABLE when passive analogue sensors (shunts, RTDs, Rogowski coils, gate loops) cannot power active electronics at the HV potential.

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GALVANICABLE Galvanically Isolated Industrial Signal Transmission

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