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Product

power connection cable seriesCEI 20-13 / 20-14 RG7OZR0.6/1 kV & 1.8/3 kV SWA ArmouredG7 HEPR + Steel Wire Armour

RG7OZR Three-Core Armoured HEPR Power CableCEI 20-13 / 20-14 0.6/1 kV & 1.8/3 kV +90/+105 °C G7 HEPR steel-armoured cable

RG7OZR Three-Core (and Multi-Core) Armoured HEPR Power Cable (0.6/1 kV & 1.8/3 kV; 1.5 mm² to 240 mm²) manufactured to Italian standards CEI 20-13 / CEI 20-14, CEI UNEL 35377 and IEC 60502-1—combining Class 5 flexible or Class 2.

CEI 20-13 / 20-14 / UNEL
Z Galvanized Steel Wire Armour
CEI 20-22 II Cat A Flame
Direct Burial & ATEX Zones
Order designation
RG7OZR 3×35 mm² 0.6/1kV
Conductors / armour
3 × 35 mm² Cu + 1.6 mm SWA
Outer Ø ≈
27.6 mm
Weight ≈
1,980 kg/km
Ampacity (air 30°C)
162 A
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standards
CEI 20-13 / CEI
CEI UNEL 35377 & IEC 60502-1
Voltage classes
0.6/1 kV & 1.8/3
Low- & lower-medium voltage
Cross-sections
3×1.5 to 3×240 m
Also 4G, 5G & multi-core
Insulation
G7 HEPR (+90/+10
High-modulus EPR (+250 °C SC)
Armour ('Z')
Galv. Steel Wire
Round SWA tensile & crush shield
Outer sheath
Grey/Red PVC Typ
CEI 20-22 II Cat A flame

Typical values for this cable type, based on CEI 20-13 / CEI 20-14 / IEC 60502-1 / CEI UNEL 35377 — confirmed in the datasheet and quotation for your order.

Application fit

Is RG7OZR right for your machine?

Engineered for heavy industrial low-voltage (0.6/1 kV) and 1.8/3 kV feeders exposed to mechanical crush, rodent attack, vertical shaft tension or ATEX hazardous-area pipe-rack installation.

Fixed installation

Suitable

Installed directly in rocky underground trenches without conduit, on exposed petrochemical pipe racks, and along heavy factory walls.

Drilling jumbo & rotary mast feed

Suitable

Galvanized round steel wire armour ('Z') provides high crush resistance, rodent protection and axial tensile support in vertical shafts.

TBM gantry & advancing tunnel reel

Suitable

Passes CEI 20-22 II (IEC 60332-3-22 Cat A) vertical bunched flame testing for dense industrial cable trays.

Motorised monospiral reel

Not suitable

Steel-wire-armoured fixed installation cable; not for reeling drums or drag chains.

Use Screened MV RG7H1OZR
Typical machinesRefineries, LNG Terminals & Petrochemical Plants (ATEX)Direct-Buried Industrial & Infrastructure Power FeedersSteel Mills, Cement Kilns & Quarrying ConveyorsWater Treatment, Pumping Stations & Dam Galleries1.8/3 kV Industrial Motor & Auxiliary Transformer Feeds

Construction

Layer by layer

RG7OZR Power Cable showing annealed copper conductors ('R'), high-modulus G7 HEPR core insulation, extruded inner PVC filler/bedding sheath ('O'), galvanized round steel wire armour ('Z'), and overall flame-retardant PVC ('R', Rz) outer sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
13 (or 3G / 4G / 5G) × Annealed red copper conductors ('R')Class 5 flexible or Class 2 stranded annealed plain copper per CEI EN 60228 (1.5 mm² to 240 mm²)High conductivity and easy termination inside armoured cable glands
2G7 High-Modulus HEPR elastomer core insulationCross-linked high-modulus ethylene propylene rubber compound Type G7 per CEI 20-11, colour-coded per HD 308 S2 / CEI UNEL 00722+90/+105 °C continuous rating and +250 °C short-circuit capability
3Extruded flame-retardant inner bedding sheath ('O')Extruded thermoplastic inner sheath filling core interstices into a smooth cylindrical beddingCushions insulated cores against steel armour wire pressure
4Galvanized round steel wire armour ('Z' = Filo d'acciaio)Concentric layer of hot-dip galvanized round steel wires (0.9 mm to 2.5 mm diameter depending on cable OD)Absorbs radial soil/rock crush, rodent attack and pulling tension
5Flame-retardant PVC outer sheath ('R', Type Rz)Lead-free flame-retardant PVC Type Rz in Grey (RAL 7001 for 0.6/1 kV) or Red (for 1.8/3 kV)Passes CEI 20-22 II Cat A bunched fire test and resists hydrocarbons

RG7OZR 0.6/1 kV (3×1.5 to 3×240 / 4G / 5G mm² · Grey)

CEI UNEL 35377 0.6/1 kV steel-wire-armoured G7 HEPR power cable with Grey Rz outer sheath (replacing FG7OZR where Class 2/5 R specified)

RG7OZR 1.8/3 kV (3×16 to 3×240 mm² · Red)

CEI 20-13 1.8/3 kV unscreened steel-wire-armoured G7 HEPR power cable for 3 kV industrial motors and auxiliary feeders

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on CEI 20-13 / CEI 20-14 / IEC 60502-1 / CEI UNEL 35377. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage (Uo/U)
0.6 / 1 kV AC (CEI UNEL 35377) · 1.8 / 3 kV AC (CEI 20-13)
Routine AC test voltage
4,000 V AC (0.6/1 kV) · 6,500 V AC (1.8/3 kV) for 5 minutes
Max. DC resistance @ 20 °C
1.91 Ω/km (10) · 1.21 Ω/km (16) · 0.387 Ω/km (50) · 0.193 Ω/km (95)
Insulation resistance
Kᵢ ≥ 5,000 MΩ·km at 20 °C

Thermal

Continuous conductor temp.
+90 °C (0.6/1 kV UNEL 35377) / +105 °C (G7 compound rating)
Short-circuit temperature
+250 °C (max. 5 s)
Ambient temperature range
-15 °C to +80 °C (fixed) · 0 °C to +50 °C (during laying)

Mechanical

Steel wire armour ('Z')
Galvanized round steel wires (≥ 90 % coverage) with 350–500 N/mm² tensile
Min. bend radius
12 × overall cable OD
Impact & crush resistance
Passes IEC 60502-1 heavy mechanical impact and direct-burial crush

Resistance

Bunched flame propagation
CEI 20-22 II & IEC 60332-3-22 Cat A vertical tray fire test
Reduced halogen emission
CEI 20-37 / EN 60754-1: ≤ 18 % HCl
Rodent & termite barrier
Concentric steel wire armour provides 100 % rodent immunity

Reference standards

Italian & IEC standards
CEI 20-13 · CEI 20-14 · CEI UNEL 35377 · IEC 60502-1
ATEX plant installation
Suitable for Zone 1 / Zone 2 hazardous areas per EN 60079-14 with Ex glands
RoHS, REACH & CE
2011/65/EU RoHS 2, REACH & CE compliant

Identification

CEI code breakdown
R=Cu · G7=HEPR · O=Multi-core+bedding · Z=Steel wire armour · R=PVC Rz
Core colours (HD 308 S2)
3C: Brown, Black, Grey (or GNYE, Blue, Brown) · 4C/5C: HD 308 S2
Customs tariff (HS)
8544.4993 (0.6/1 kV) · 8544.6010 (1.8/3 kV)

Sizes

6 standard RG7OZR 0.6/1 kV Three-Core Armoured HEPR configurations

Cross-section, steel wire armour size, outer diameter, weight and CEI UNEL 35024/1 ampacity.

0.6/1 kV 3-core SWA dimensions & ampacity
CEI designationConductors & SWA wireOuter Ø ≈
mm		Weight ≈
kg/km		Air 30°C
A		Buried 20°C
A		Enquiry
0.6/1 kV RG7OZR Three-Core Steel-Wire-Armoured Cables
RG7OZR 3×6 mm² 0.6/1kV3 × 6 mm² Cu + 0.9 mm SWA16.85405462
RG7OZR 3×16 mm² 0.6/1kV3 × 16 mm² Cu + 1.25 mm SWA21.81,060100107
RG7OZR 3×35 mm² 0.6/1kV3 × 35 mm² Cu + 1.6 mm SWA27.61,980162162
RG7OZR 3×70 mm² 0.6/1kV3 × 70 mm² Cu + 1.6 mm SWA34.83,380250236
RG7OZR 3×120 mm² 0.6/1kV3 × 120 mm² Cu + 2.0 mm SWA43.25,490352318
RG7OZR 3×185 mm² 0.6/1kV3 × 185 mm² Cu + 2.5 mm SWA52.08,240456398
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Also available in 3G (with GNYE), 4×, 4G, 5G and 1.8/3 kV configurations.

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 % 4.0 kV (0.6/1 kV) or 6.5 kV (1.8/3 kV) AC dielectric & DC R testZero breakdown for 5 min and DC resistance within CEI EN 60228 limitsEvery manufactured drum
Sample tests
Galvanized steel wire armour tensile strength & zinc coating testMeets EN 10257-1 / CEI 20-14 zinc mass and wire diameter tolerancesPer production batch
CEI 20-22 II Cat A bunched vertical flame & G7 HEPR hot-set testChar height ≤ 2.5 m and G7 elastic modulus ≥ 4.5 MPa at +150 °CType qualification

Inspection certificate

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

Product approvals

CEI 20-13 & CEI 20-14CEI UNEL 35377 & IEC 60502-1CEI 20-22 II Cat A Flame

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX RG7OZR 0.6/1kV CEI UNEL 35377 CEI 20-22 II
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

PDFRG7OZR Three-Core Armoured HEPR Power Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXRG7OZR 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.

What is the difference between RG7OZR and RG7H1OZR?
RG7OZR is an unscreened armoured power cable for low voltage (0.6/1 kV) and 1.8/3 kV—it has G7 HEPR insulation, inner bedding ('O'), steel wire armour ('Z') and a PVC sheath ('R'), but no individual copper phase screens. RG7H1OZR adds semiconducting stress control and individual H1 copper screens on each core for 6/10 kV to 18/30 kV medium-voltage networks.
Can the galvanized steel wire armour ('Z') on RG7OZR be used as the protective earth (PE) conductor?
In many industrial installations, the steel wire armour is bonded at both ends via brass SWA compression glands to provide supplementary earth fault protection; however, Italian CEI 64-8 practice typically specifies a dedicated copper PE conductor (e.g., 3G, 4G or 5G RG7OZR) because copper has ~8× higher conductivity than steel.
Why is RG7OZR preferred over standard PVC-insulated armoured cable (NYY-J / RVFV) in refineries?
RG7OZR uses thermoset +90/+105 °C G7 HEPR rubber insulation instead of +70 °C thermoplastic PVC, giving ~20 % higher ampacity in hot refinery pipe racks and preventing insulation melt-back during 250 °C short-circuit faults.
Which cable gland fits RG7OZR?
Standard metric single- or double-compression SWA (Steel Wire Armour) brass/nickel-plated brass glands (including Ex d / Ex e barrier glands for ATEX zones) clamp directly onto the round 'Z' armour wires.

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RG7OZR Three-Core Armoured HEPR Power Cable

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