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Product

ASTM B976 ACCR ASTM B976 / IEEE 738Up to 500 kV AC−40…+210 °C

Aluminum Conductor Composite Reinforced Overhead ConductorASTM B976 / IEEE 738 · Up to 500 kV AC · -40 °C to +210 °C industrial ACCR construction

Aluminum Conductor Composite Reinforced Overhead Conductor (ACCR) engineered to ASTM B976 / IEEE 738 for Up to 500 kV AC service across -40 °C to +210 °C, featuring al₂o₃ metal-matrix composite (mmc) core and heat-resistant al-zr outer stranding layers with

Approved

Outdoor & humid

Ozone, UV & moisture

Nominal area

Order designation: ACCR 240 mm²
Outer Ø ≈: 21.8 mm
Total weight ≈: 885 kg/km
Rated tensile ≈: 84.5 kN
Stranding: 26/3.44 + 7/2.68

All sizes (10)

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: Up to 500 kV AC
Operating temp.: −40…+210 °C
Min. bend radius: 20 × OD
Conductor: Al₂O₃ metal-matr
Outer layer: Heat-resistant
Standard: ASTM B976

Typical values for this cable type, based on ASTM B976 / IEEE 738 — confirmed in the datasheet and quotation for your order.

Application fit

Is ACCR right for your machine?

Fixed installation

Suitable

Engineered and verified for fixed service in accordance with ASTM B976 / IEEE 738.

Switchgear & control cabinet wiring

Suitable

Suitable for switchgear, control panels and equipment terminations within 20 × OD bend radius.

TBM gantry & advancing tunnel reel

With conditions

Use mechanical conduit or armoured protection where exposed to rock fall or crushing loads.

Motorised monospiral reel

Not suitable

Not designed for high-speed monospiral crane reeling; select a dedicated reeling cable.

NSHTOU Reeling Cable

Typical machinesRenewable Energy & EV ChargingHigh-Voltage Grid & Substation InterconnectsWind, Solar & Hydro Power EvacuationUtility Overhead & Underground DistributionIndustrial Power InfrastructureMetallurgical, Glass & Ceramic Furnaces

Construction

Layer by layer

Shown: ACCR (ASTM B976 / IEEE 738) with al₂o₃ metal-matrix composite (mmc) core, heat-resistant al-zr outer stranding layers and heat-resistant al-zr outer stranding layers (2-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Al₂O₃ metal-matrix composite (MMC) core	Stranded continuous alumina ceramic fiber in pure aluminum matrix core wiresASTM B976 / IEEE 738
2	Heat-resistant Al-Zr outer stranding layers	Concentric stranded aluminum-zirconium (AT1 / AT2) thermal-resistant outer wires (+210 °C)ASTM B976 / IEEE 738

ACCR — Standard Execution

Built to ASTM B976 / IEEE 738 with al₂o₃ metal-matrix composite (mmc) core and heat-resistant al-zr outer

ACCR — Custom Cross-Sections

Full range of metric mm² and AWG/kcmil conductor sizes per ASTM B976 / IEEE 738

ACCR — Export Drum Supply

Supplied with EN 10204 3.1 routine dielectric & conductor resistance test certificate

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ASTM B976 / IEEE 738. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / duty: Up to 500 kV AC (ASTM B976 / IEEE 738)
Conductor construction: Al₂O₃ metal-matrix composite (MMC) core — Stranded continuous alumina ceramic fiber in pure aluminum matrix core wires
Primary insulation / dielectric: Heat-resistant Al-Zr outer stranding layers — Concentric stranded aluminum-zirconium (AT1 / AT2) thermal-resistant outer wires (+210 °C)

Thermal

Continuous operating temperature: −40…+210 °C per ASTM B976 / IEEE 738
Short-circuit / peak thermal limit: +160 °C to +250 °C (5 s adiabatic limit depending on dielectric class)
Minimum installation temperature: −5 °C (thermoplastic) / −25 °C (cross-linked or elastomer) / −40 °C (metallic)

Mechanical

Outer protection / covering: Heat-resistant Al-Zr outer stranding layers — Concentric stranded aluminum-zirconium (AT1 / AT2) thermal-resistant outer wires (+210 °C)
Minimum bending radius: 20 × OD (installed / static routing)
Layer count & geometry: 2 concentric/structural layers verified by cross-section inspection

Resistance

Environmental & chemical durability: Engineered for industrial service in accordance with ASTM B976 / IEEE 738
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing product standard: ASTM B976 / IEEE 738
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: ACCR
Customs tariff (HS): 8544.49 / 8544.60 / 7614.10

Sizes

10 standard ACCR overhead conductor sizes

Manufactured to ASTM B976 / IEEE 738 in standard cross-sections from 50 mm² to 630 mm² (and North American AWG/kcmil code words).

Dimensions, stranding, breaking load & weights
Order designation	Nominal area	Stranding	Outer Ø ≈ mm	Weight ≈ kg/km	Rated tensile kN ≈	Min. sheave R mm
ACCR Standard Transmission & Distribution Schedule (−40…+210 °C)
ACCR 50 mm²	50 mm²	7/3.00 mm	9.0	138	14.5	180
ACCR 95 mm²	95 mm²	19/2.52 mm	12.6	262	28.2	252
ACCR 120 mm²	120 mm²	19/2.85 mm	14.3	334	36.4	286
ACCR 150 mm²	150 mm²	26/2.70 + 7/2.10	17.1	546	53.8	342
ACCR 185 mm²	185 mm²	26/3.00 + 7/2.33	19.0	674	65.2	380
ACCR 240 mm²	240 mm²	26/3.44 + 7/2.68	21.8	885	84.5	436
ACCR 300 mm²	300 mm²	26/3.86 + 7/3.00	24.5	1,110	104.2	490
ACCR 400 mm²	400 mm²	54/3.08 + 7/3.08	27.7	1,432	126.0	554
ACCR 500 mm²	500 mm²	54/3.44 + 7/3.44	31.0	1,790	156.5	620
ACCR 630 mm²	630 mm²	54/3.86 + 19/2.32	34.8	2,245	194.0	696

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom kcmil/code-word sizes, grease-filled corrosion protection and non-specular surface finishes available per ASTM B976 / IEEE 738.

DC resistance & continuous current ratings
Nominal area	Max. DC R₂₀ Ω/km	Continuous current A ≈	Operating temp.
50 mm²	0.578	210	−40…+210 °C
95 mm²	0.304	320	−40…+210 °C
150 mm²	0.192	435	−40…+210 °C
240 mm²	0.119	590	−40…+210 °C
400 mm²	0.072	820	−40…+210 °C
630 mm²	0.046	1,080	−40…+210 °C

Ampacity calculated per IEEE 738 (0.6 m/s wind, 40 °C ambient, 0.5 solar absorptivity / emissivity).

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 DC resistance & dimensional verification (ASTM B976 / IEEE 738)	DC resistance at 20 °C and geometry within ASTM B976 / IEEE 738 class limits	Every manufactured drum / spool
Routine dielectric / spark / structural integrity test (ASTM B976 / IEEE 738)	Zero breakdown or structural defect over full production length	Every manufactured drum / spool
Sample tests
Thermal aging, mechanical & material qualification (ASTM B976 / IEEE 738)	Full compliance with ASTM B976 / IEEE 738 across −40…+210 °C	Type qualification & periodic sample audit

Inspection certificate

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

Product approvals

ASTM B976 CompliantEN 10204 3.1 Routine 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 ACCR <size> ASTM B976 Up to 500 kV AC CE

Delivery form: Non-returnable fumigated wooden drums or precision DIN spools
Standard lengths: 500 m · 1000 m · 2000 m drums (custom cut lengths on request)
MOQ: 500 m (stock sizes) · 1000 m (custom production)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFAluminum Conductor Composite Reinforced Overhead Conductor – technical datasheet10 sizes · construction, technical data, approvals XLSXACCR spec data (Excel)All 10 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-21
Updated: 2026-10-21

FAQ

Questions engineers ask first

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

What governing standard and construction define ACCR (Aluminum Conductor Composite Reinforced Overhead Conductor)?

ACCR (Aluminum Conductor Composite Reinforced Overhead Conductor) is manufactured in accordance with ASTM B976 / IEEE 738 for Up to 500 kV AC service over -40 °C to +210 °C. Its 2-layer construction comprises al₂o₃ metal-matrix composite (mmc) core, heat-resistant al-zr outer stranding layers.

What is the minimum bending radius and installation temperature for ACCR?

The minimum installed bending radius for ACCR is 20 × OD across its continuous operating temperature range of -40 °C to +210 °C, ensuring mechanical and dielectric stability without conductor or insulation strain.

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

From inside to outside, the construction sequence is: (01) Al₂O₃ metal-matrix composite (MMC) core (Stranded continuous alumina ceramic fiber in pure aluminum matrix core wires); (02) Heat-resistant Al-Zr outer stranding layers (Concentric stranded aluminum-zirconium (AT1 / AT2) thermal-resistant outer wires (+210 °C)).

What factory test certificates are supplied with ACCR?

Every production drum or spool of ACCR undergoes routine conductor DC resistance, dimensional and dielectric/integrity testing per ASTM B976 / IEEE 738, and is delivered with an EN 10204 3.1 factory test certificate.

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Get an engineering quote for ACCR

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

ACCR Aluminum Conductor Composite Reinforced Overhead Conductor

Selected sizes:


Reel & motion:
- Reel type: 
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- Travel speed (m/min): 
- Max. acceleration: 
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