1 / 5

Product

Triplex copper HEPR screened MV power cable 12/20 (24) kVTriplex 3×(1×Cu)CEI UNEL 35756

RG7H1RX 12/20 kV Triplex Copper HEPR MV Power CableCEI UNEL 35756 / IEC 60502-2 · 12/20 (24) kV · -25 °C to +90 °C triplex copper MV cable

EMC screen

Flame-retardant

Outdoor & humid

Ozone, UV & moisture

Configuration

Order designation: RG7H1RX 3×(1×50/16) mm² 12/20 kV
Outer Ø ≈: 56.0 mm
Weight ≈: 2,980 kg/km
Tensile load ≈: 25.5 kN
Core / stranding: Class 2 Cu + H1 wire/tape screen

All sizes (5)

Request a quote Datasheet WhatsApp info@tebaoflex.com

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 12/20 (24) kV
Operating temp.: −25…+90 °C
Min. bend radius: 15 × OD
Core / conductor: Class 2 Cu
Outer protection: Triplex Rz PVC
Standard: CEI UNEL 35756

Typical values for this cable type, based on CEI UNEL 35756 / IEC 60502-2 — confirmed in the datasheet and quotation for your order.

Application fit

Is RG7H1RX right for your machine?

Fixed installation

Suitable

Helically cabled triplex bundle reduces mutual inductance, pulls in a single operation and separates cleanly for 3-phase terminations.

Quayside shore-to-ship HVSC connection

Suitable

High-modulus G7 HEPR insulation allows +90 °C continuous conductor temperature and +250 °C short-circuit rating.

TBM gantry & advancing tunnel reel

With conditions

Suitable for fixed gallery and culvert trays where CEI 20-22 II / IEC 60332-1-2 PVC is specified.

Motorised monospiral reel

Not suitable

Class 2 rigid stranded copper triplex cable for static distribution; not for mobile reeling drums.

ARG7H1OR

Typical machinesRenewable Energy & EV ChargingUtility & Industrial 12/20 kV Primary DistributionSolar PV & Wind Farm MV Collector SubstationsHeavy Industrial Switchgear & Transformer RisersInfrastructure Ducts, Culverts & Pipe Jacking

Construction

Layer by layer

Shown: RG7H1RX (CEI UNEL 35756 / IEC 60502-2) featuring phase conductors (3x1x50 mm²), conductor screen and triplex phase jackets (rx) (6-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Phase Conductors (3x1x50 mm²)	Class 2 compact circular stranded plain annealed copper conductors (Code R) in a visible three-phase triplex assemblyCEI UNEL 35756 / IEC 60502-2
2	Conductor Screen	Extruded thermosetting semiconductive elastomer conductor screen ensuring void-free interface with the primary dielectricCEI UNEL 35756 / IEC 60502-2
3	MV Primary Insulation (G7)	High-modulus ethylene propylene rubber (G7 HEPR) primary insulation rated for 90 °C continuous / 250 °C short-circuit serviceCEI UNEL 35756 / IEC 60502-2
4	Insulation Screen	Cold-strippable extruded outer semiconductive elastomer insulation screen for clean medium-voltage terminationCEI UNEL 35756 / IEC 60502-2
5	Metallic Phase Screen (H1)	Concentric layer of plain copper wires bound by an open counter-helix copper equalizing tape (H1) over each phaseCEI UNEL 35756 / IEC 60502-2
6	Triplex Phase Jackets (RX)	Three individual flame-retardant red Rz PVC outer sheaths helically cabled into a self-supporting triplex bundle (RX)CEI UNEL 35756 / IEC 60502-2

RG7H1RX — Standard Execution

Built to CEI UNEL 35756 / IEC 60502-2 with phase conductors (3x1x50 mm²) and triplex phase jackets (rx)

RG7H1RX — Custom Length & Configuration

Available in custom drum lengths, core counts or factory-terminated assemblies

RG7H1RX — Factory Routine Certified

Supplied with EN 10204 3.1 routine electrical, dielectric & dimensional inspection report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on CEI UNEL 35756 / IEC 60502-2. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 12/20 (24) kV (CEI UNEL 35756 / IEC 60502-2)
Core / conductor construction: Phase Conductors (3x1x50 mm²) — Class 2 compact circular stranded plain annealed copper conductors (Code R) in a visible three-phase triplex assembly
Primary dielectric / insulation: Conductor Screen — Extruded thermosetting semiconductive elastomer conductor screen ensuring void-free interface with the primary dielectric

Thermal

Continuous operating temperature: −25…+90 °C (rated operating envelope)
Storage & transport temperature: −40…+80 °C on export drum or reel

Mechanical

Outer protection / sheath: Triplex Phase Jackets (RX) — Three individual flame-retardant red Rz PVC outer sheaths helically cabled into a self-supporting triplex bundle (RX)
Minimum bending radius: 15 × OD
Structural layer count: 6 concentric functional layers

Resistance

Environmental & chemical resistance: Industrial moisture, oils and mechanical wear per CEI UNEL 35756 / IEC 60502-2
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: CEI UNEL 35756 / IEC 60502-2
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: RG7H1RX
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

5 standard RG7H1RX configurations

Manufactured to CEI UNEL 35756 / IEC 60502-2 for heavy-duty industrial and specialty engineering systems.

Dimensions, tensile ratings & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Weight ≈ kg/km	Tensile load kN ≈	Min. bend R mm
RG7H1RX Construction Schedule (−25…+90 °C)
RG7H1RX 3×(1×35/16) mm² 12/20 kV	3 × (1 × 35/16 mm² Cu)	Class 2 Cu + H1 wire/tape screen	53.0	2,490	18.0	795
RG7H1RX 3×(1×50/16) mm² 12/20 kV	3 × (1 × 50/16 mm² Cu)	Class 2 Cu + H1 wire/tape screen	56.0	2,980	25.5	840
RG7H1RX 3×(1×70/16) mm² 12/20 kV	3 × (1 × 70/16 mm² Cu)	Class 2 Cu + H1 wire/tape screen	60.0	3,740	35.5	900
RG7H1RX 3×(1×95/16) mm² 12/20 kV	3 × (1 × 95/16 mm² Cu)	Class 2 Cu + H1 wire/tape screen	64.0	4,680	48.0	960
RG7H1RX 3×(1×120/16) mm² 12/20 kV	3 × (1 × 120/16 mm² Cu)	Class 2 Cu + H1 wire/tape screen	68.0	5,620	60.5	1,020

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom core counts, cross-sections, sheath colours and factory-tested cut lengths available per CEI UNEL 35756 / IEC 60502-2.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Capacity	Operating temp.
3 × (1 × 35/16 mm² Cu)	0.52	12/20 kV / 178 A	−25…+90 °C
3 × (1 × 50/16 mm² Cu)	0.39	12/20 kV / 212 A	−25…+90 °C
3 × (1 × 70/16 mm² Cu)	0.27	12/20 kV / 262 A	−25…+90 °C
3 × (1 × 95/16 mm² Cu)	0.19	12/20 kV / 316 A	−25…+90 °C
3 × (1 × 120/16 mm² Cu)	0.15	12/20 kV / 362 A	−25…+90 °C

Every production length undergoes routine conductor DC resistance, high-voltage dielectric and dimensional verification.

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.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
Conductor resistance & dimensional verification (CEI UNEL 35756 / IEC 60502-2)	Electrical parameters and outer diameter within CEI UNEL 35756 / IEC 60502-2 tolerances	Every manufactured drum / length
High-voltage dielectric & insulation resistance test (CEI UNEL 35756 / IEC 60502-2)	Zero dielectric breakdown and verified insulation resistance over full length	Every manufactured drum / length
Sample tests
Thermal ageing, mechanical flexing & environmental qualification (CEI UNEL 35756 / IEC 60502-2)	Verified structural and dielectric integrity across −25…+90 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

CEI UNEL 35756 CompliantEN 10204 3.1 Factory Test CertificateCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX RG7H1RX CEI UNEL 35756 12/20 (24) kV CE

Delivery form: Heavy-duty export wooden/steel drums or factory-tested coils
Standard lengths: 100 m, 250 m, 500 m, 1,000 m or custom cut-to-length reels
MOQ: 100 m (standard configurations) · 300 m (custom builds)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFRG7H1RX 12/20 kV Triplex Copper HEPR MV Power Cable – technical datasheet5 sizes · construction, technical data, approvals XLSXRG7H1RX spec data (Excel)All 5 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-23
Updated: 2026-10-23

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What applications is RG7H1RX engineered for?

RG7H1RX 12/20 (24) kV medium-voltage triplex power cable comprising three helically cabled single-core phases with Class 2 copper conductors, triple-extruded G7 HEPR insulation, H1 copper wire/tape metallic screens and individual red Rz PVC phase jackets. It is built to CEI UNEL 35756 / IEC 60502-2 for utility & industrial 12/20 kv primary distribution and solar pv & wind farm mv collector substations.

What are the minimum bending radius and operating temperature range for RG7H1RX?

The minimum bending radius for RG7H1RX is 15 × OD across its continuous operating temperature range of -25 °C to +90 °C, ensuring mechanical and dielectric stability in industrial service.

How are the concentric layers of RG7H1RX arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Phase Conductors (3x1x50 mm²) (Class 2 compact circular stranded plain annealed copper conductors (Code R) in a visible three-phase triplex assembly); (02) Conductor Screen (Extruded thermosetting semiconductive elastomer conductor screen ensuring void-free interface with the primary dielectric); (03) MV Primary Insulation (G7) (High-modulus ethylene propylene rubber (G7 HEPR) primary insulation rated for 90 °C continuous / 250 °C short-circuit service); (04) Insulation Screen (Cold-strippable extruded outer semiconductive elastomer insulation screen for clean medium-voltage termination); (05) Metallic Phase Screen (H1) (Concentric layer of plain copper wires bound by an open counter-helix copper equalizing tape (H1) over each phase); (06) Triplex Phase Jackets (RX) (Three individual flame-retardant red Rz PVC outer sheaths helically cabled into a self-supporting triplex bundle (RX)).

What factory test certificates are supplied with RG7H1RX?

Every production drum of RG7H1RX undergoes routine electrical continuity, high-voltage dielectric and dimensional testing per CEI UNEL 35756 / IEC 60502-2, and is delivered with an EN 10204 3.1 factory test certificate.

Request a quote

Get an engineering quote for RG7H1RX

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.

Reel typeDrum core diameter (mm)Cable length on drum (m)Travel speed (m/min)Max. accelerationCycles per hourLength and quantityAmbient temperatureExposure (outdoor, water, oil, abrasion)Destination countryEquipment and operating conditions

03Message for our engineers

RG7H1RX 12/20 kV Triplex Copper HEPR MV Power 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