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Product

power connection cable seriesJIS C 3410 / IEC 60092-3543.3 kV · 6.6 kV · 6/10 kVSPYC (1C) & TPYC (3C)

SPYC TPYC MV JIS Medium-Voltage Shipboard Power CableJIS C 3410 3.3 kV, 6.6 kV & 6/10 kV screened wire-braid armoured MV shipboard cable

SPYC (Single-Core) and TPYC (Three-Core) Medium-Voltage Shipboard Power Cable (3.3/3.3 kV, 6.6/6.6 kV & 6/10 kV) per JIS C 3410 and IEC 60092-354 featuring compacted tinned copper conductors, triple-extruded semi-conductive + 90 °C.

JIS C 3410 / IEC 60092-354
Triple-Extruded + Cu Screen
IEC 60332-3-22 Cat A
HV Propulsion & Thruster
Order designation
6.6kV TPYCY-70
Outer Ø ≈
55.5 mm
Weight ≈
5,480 kg/km
Conductor DC R
0.2700 Ω/km
Ampacity @ 45 °C
175 A
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standards
JIS C 3410
& IEC 60092-354 MV marine
Voltage classes
3.3 / 6.6 / 10 k
Ungrounded & grounded ship
Configurations
SPYC (1C) / TPYC
10 to 400 mm² (1C) · 10–185 (3C)
Dielectric
Triple-Extr. EPR
Conductor screen + EPR + screen
PD level
≤ 5 pC @ 1.73 Uo
100 % partial discharge tested
Temperature
-25 to +90 °C
+250 °C short-circuit rating

Typical values for this cable type, based on JIS C 3410 / IEC 60092-354 / ClassNK — confirmed in the datasheet and quotation for your order.

Application fit

Is SPYC TPYC MV right for your machine?

Primary medium-voltage power backbone for 3.3 kV, 6.6 kV and 11 kV marine diesel-electric propulsion, LNG cargo compressors, bow/azimuth thrusters and AMP (Cold Ironing) shore-power tie-ins.

Offshore platform & shipboard deck trays

Suitable

Rated for ungrounded / high-resistance-grounded 3.3/3.3 kV and 6.6/6.6 kV (133 % / Category C) marine networks.

VFD inverter to AC motor screened feeder

Suitable

Concentric copper tape screen over semi-conductive EPR insulation confines electric stress and returns VFD common-mode current.

Quayside shore-to-ship HVSC connection

Suitable

Connects 6.6 kV / 11 kV Alternative Maritime Power (AMP) shore-connection switchboards to main busbars.

Energy chain / drag chain

Not suitable

Fixed medium-voltage shipboard feeder; for mobile MV reels use (N)TMCGC11Y or (N)TSCGEWÖU.

Use (N)TMCGC11Y MV PUR
Typical machines6.6 kV / 11 kV LNG & Ultra-Large Container ShipsMarine Electric Pod & Azimuth Thruster DrivesHigh-Voltage Shore Connection (AMP / IEC 80005-1)FPSO & Offshore Drilling Topside MV FeedersDredgers, Icebreakers & Cruise Ship Propulsion

Construction

Layer by layer

SPYC / TPYC MV (JIS C 3410) showing compacted tinned copper conductor, extruded semi-conductive conductor screen, 90 °C HV EPR insulation, strippable insulation screen, copper tape metallic shield, PVC/LSZH inner sheath, bronze (1C) or galvanized steel (3C) wire braid armour, and outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Compacted stranded tinned copper conductorCircular compacted tinned annealed copper per JIS C 3410 / IEC 60228 Class 2 (16 to 400 mm²)Smooth strand profile prevents corona points
2Triple-extruded semi-con + HV EPR + semi-con screenExtruded thermoset conductor screen + 90 °C High-Voltage EPR (3.3/6.6/10 kV wall) + easy-strip insulation screenPartial discharge < 5 pC at 1.73 Uo
3Helical annealed/tinned copper tape screenOverlapped tinned/bare copper tape metallic earth screen over each coreProvides fault-current return and radial field control
4Wire braid armour ('C' / '-Y')Non-magnetic bronze braid on 1-core SPYC; galvanized steel wire braid on 3-core TPYC over inner beddingMechanical protection + vibration damping
5Flame-retardant Vinyl ('Y') or SHF1 LSZH outer sheathExtruded Red/Black flame-retardant PVC (SPYCY / TPYCY) or halogen-free SHF1 jacketIEC 60332-3-22 Cat A bunched fire test

SPYC / SPYCY 3.3 kV & 6.6 kV (Single-Core)

1 × 25 to 1 × 400 mm² single-core screened MV shipboard cable with non-magnetic bronze braid

TPYC / TPYCY 3.3 kV & 6.6 kV (Three-Core)

3 × 16 to 3 × 185 mm² three-core individually screened MV shipboard cable with steel wire braid

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on JIS C 3410 / IEC 60092-354 / ClassNK. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltages (Uo/U)
1.9/3.3 (3.3/3.3) kV · 3.8/6.6 (6.6/6.6) kV · 6/10 kV
AC routine test voltage
9.5 kV (3.3 kV class) · 17 kV (6.6 kV IT class) · 21 kV (6/10 kV)
Partial discharge (PD)
≤ 5 pC at 1.73 Uo (routine tested on every drum)
Impulse withstand (BIL)
40 kV (3.3 kV) · 60 kV (6.6 kV) · 75 kV (6/10 kV)

Thermal

Continuous conductor temp.
+90 °C
Short-circuit temperature
+250 °C (5 s)
Ambient temperature range
-25 °C to +45 °C (rated marine engine-room base)

Mechanical

Min. bend radius
12 × OD (single-core SPYC) · 10 × OD (three-core TPYC)
EPR insulation wall
3.4 mm (3.3/3.3 kV) · 5.0 mm (6.6/6.6 kV ungrounded IT)
Short-circuit cleat rating
Withstands > 40 kA peak electrodynamic fault forces

Resistance

Flame propagation
IEC 60332-3-22 Category A bunched vertical tray burn
Ozone & corona resistance
EPR passes IEC 60811-403 ozone test without cracking
Oil & bilge resistance
Resistant to marine fuel, synthetic lube oil & humidity

Reference standards

Marine MV standards
JIS C 3410 & IEC 60092-354
Classification societies
ClassNK, ABS, DNV, Lloyd's Register, BV, KR, CCS
RoHS & SOLAS
IMO SOLAS asbestos-free & RoHS 2 compliant

Identification

Phase identification (TPYC)
Numbered 1, 2, 3 or Red/White/Blue identification tapes
Outer sheath colour
Black or Red (6.6 kV MV warning)
Customs tariff (HS)
8544.6010

Sizes

6 standard 6.6 kV SPYC (1C) & TPYC (3C) MV shipboard configurations

Dimensions, weight, DC resistance and 45 °C marine ampacity for 6.6 kV shipboard feeders.

6.6 kV dimensions & ampacity
JIS designationCores & voltageOuter Ø ≈
mm		Weight ≈
kg/km		Max. DC R
Ω/km		Ampacity 45°C
A		Enquiry
6.6 kV Single-Core SPYCY
6.6kV SPYCY-951 × 95 mm² · 6.6 kV Bronze Braid31.52,1500.1950275
6.6kV SPYCY-1501 × 150 mm² · 6.6 kV Bronze Braid35.02,8400.1260365
6.6kV SPYCY-2401 × 240 mm² · 6.6 kV Bronze Braid40.54,0500.0762500
6.6 kV Three-Core TPYCY
6.6kV TPYCY-353 × 35 mm² · 6.6 kV Steel Braid47.03,6200.5300115
6.6kV TPYCY-703 × 70 mm² · 6.6 kV Steel Braid55.55,4800.2700175
6.6kV TPYCY-1203 × 120 mm² · 6.6 kV Steel Braid64.07,8500.1540245
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Supplied with 100 % routine partial-discharge (< 5 pC) and AC high-voltage test certificates witnessed by ClassNK / ABS / DNV upon request.

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 % Partial Discharge (≤ 5 pC @ 1.73 Uo) & HV AC testZero breakdown at 9.5–21 kV AC and PD ≤ 5 pC across full lengthEvery manufactured drum length
Sample tests
Tan δ vs voltage/temperature & 60 kV BIL impulse testPasses thermal stability and 1.2/50 µs impulse sequenceClass society type approval
IEC 60332-3-22 Category A vertical bunched fire testSelf-extinguishing with char height ≤ 2.5 mClass society type approval

Inspection certificate

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

Product approvals

JIS C 3410 & IEC 60092-354ClassNK / ABS / DNV / LRIEC 60332-3-22 Cat A

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX JIS C 3410 6.6kV SPYCY / TPYCY NK
Delivery form
Fumigated wooden drums or steel export reels
Standard lengths
500 m · 1000 m (or custom cut lengths)
MOQ
100 m (standard) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFSPYC TPYC MV JIS Medium-Voltage Shipboard Power Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXSPYC TPYC MV 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.

Why do marine 6.6 kV distribution systems require thicker insulation (6.6/6.6 kV Category C) than onshore 3.8/6.6 kV cables?
Most shipboard 6.6 kV main switchboards operate with an isolated (IT) or high-resistance-grounded neutral so a single phase-to-hull earth fault does not trip main propulsion. During a single-line-to-earth fault, the two healthy phases rise to full line-to-line voltage (6.6 kV) against the copper screen, requiring 133 % / Category C insulation thickness.
When do marine engineers choose 3 × Single-Core (SPYC) versus 1 × Three-Core (TPYC) at 6.6 kV?
Three-core TPYC is used up to ~120–150 mm² where a single balanced cable simplifies tray routing. Above 150 mm² (such as 2,000–4,000 kW bow thrusters or main alternators), three-core cables become too heavy and stiff to bend into switchgear cubicles, so parallel runs of single-core SPYC with non-magnetic bronze armour are installed.
Is a halogen-free SHF1 version available for cruise ships and LNG carriers?
Yes. Both standard PVC-sheathed (SPYCY/TPYCY) and low-smoke zero-halogen SHF1-sheathed versions per IEC 60092-354 / IEC 60754-1/2 are supplied.
Do these cables fit standard 6.6 kV marine cold-shrink and heat-shrink terminations?
Yes. The easy-strip outer semi-conductive screen and copper tape shield are dimensionally compatible with standard 6.6/10 kV indoor/outdoor marine terminations.

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SPYC TPYC MV JIS Medium-Voltage Shipboard Power Cable

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