Low Voltage Multi‑core STA Armoured Copper PVC Insulated and Sheathed Power Cables

0.6/1 kV Low voltage multi‑core STA armoured copper PVC insulated and sheathed power cables (CU/PVC/STA/PVC) comply with IEC 60502‑1. Constructed with Class 2 stranded bare copper conductor (Class‑1 solid‑copper conductor is optional for sizes less than 6 mm² on request), PVC insulation, double‑steel‑tape (STA) armour and PVC outer sheath, the cable offers strong resistance against compression and external mechanical impact. Suitable for fixed installation, this STA armoured power cable  can be laid in direct‑burial ground, cable trenches and underground ducts for industrial facilities, municipal construction, rail‑transit auxiliary power and commercial building distribution. Rated continuous operating temperature is 70℃, with core identification following IEC60445/HD-308-S2 colour‑coding rules.

Taitong Cable, a reliable China cable supplier, owning 5 plants in China, supplies factory‑price bulk orders. Multiple core configurations are available. We support custom requirements and provide technical assistance for local certification, serving project purchasers, EPC contractors, electrical wholesalers and distributors worldwide.

CU/PVC/PVC-bedding/STA/PVC-0.6/1kV

HD 603: NYBY‑STA, NYBY-SWA

(Should compliance with HD 603 S1 A3 be required, please clearly indicate this in your specifications.)

Construction (from inner to outer) 

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1, Conductor: Class 2 stranded plain annealed copper conductor to IEC 60228 (Class-1 solid conductor is also available as an option.)

2, Insulation: PVC-A insulation complying with IEC-60502-1

3, Laid-up insulated cores with non-hygroscopic fillers (optional)

4, Bedding: Extruded PVC bedding

5, Armour: Double galvanized steel-tape armour (DSTA/STA)

6, Over-sheath: Extruded PVC outer sheath, Type ST2

Applications of Low voltage multi‑core STA armoured copper PVC insulated and sheathed power Cables 0.6/1 kV 

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This 2-5-core low-voltage copper PVc-insulated STA(double-steel-tape) armoured power-cable is designed for fixed-layout installation. The double-layer galvanized steel-tape armour delivers outstanding crush-resistance, impact-proof and rodent-proof protection. It is widely adopted for direct-buried underground laying, cable trenches, underground ducts, tunnels and utility pipe-galleries.

This LV STA armoured PVC cable supplies power for industrial-plant machinery, municipal infrastructure, residential-district underground power grid, rail-transit auxiliary circuits, basement power distribution and outdoor-site power-transmission. (Not suitable for installation under heavy tensile load).

Core Insulation Colour: Identification in accordance with HD 308 S2. Green/Yellow for protective conductor as per IEC 60445. (See figure below) 

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Insulation and outer-sheath colours are available to custom

Core Benefits of Low Voltage Copper PVC Insulated PVC Bedding Double Steel Tape Armoured PVC Sheathed Power Cables (600/1000V) 

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1, Mechanical Protection: Steel tape armor (STA) prevents damage from crushing, impacts, or rodents.

2, Fixed Stability: Multi-core copper design handles stable, continuous low-voltage loads efficiently.

3, Environmental Resistance: Outer PVC sheath resists moisture, weathering, and mild chemical exposure when used outdoors

Technical Specifications of 0.6/1kV LV Multi-core Cu PVC STA PVC Power Cables 

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Custom-Available Constructions for Low-Voltage Multi-core STA-Armoured Copper PVC Insulated and Sheathed Power Cables 

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Basic-layer construction:

copper conductor + PVC-A insulation + bedding + STA steel-tape armour + outer sheath

Note: Magnetic fields inside multi-core cables counteract one another, so severe eddy-current heating will not occur, making STA steel-tape-armour well-suited for multi-core layouts.

Outer-sheath options (custom-selectable)

1, ST2-PVC sheath (factory-standard option, for indoor locations, cable trenches and ordinary buildings)

2, ST7-PE polyethylene sheath: designed for direct-burial in the wild, damp soil and open-air conditions, featuring waterproof, ageing-resistant and low-temperature-resistant performance

3, ST8-LSZH low-smoke zero-halogen sheath: applied in crowded public-area projects such as tunnels, subways and shopping malls

Complete structure designations

Cu/PVC/STA/PVC (ST2)

Cu/PVC/STA/PE

Cu/PVC/STA-LSZH

Armour replacement choices

1, STA steel-tape armour (standard, good at withstanding compressive load for underground burial)

2, SWA fine steel-wire armour for scenarios requiring both compression-resistance and tensile-resistance  

3, Heavy-duty thick steel-wire armour for heavy-load high-tension laying conditions

4, AWA aluminium-wire armour for lightweight and corrosion-resistant requirements

Conductor type customization

1, Class-1 solid copper conductor for fixed installation

2, Class-2 compacted strandedcopper conductor (general factory standard)

3, Class-5 flexible stranded-copper conductor for frequently-bent equipment wiring

4, Optional aluminium conductor

Insulation material upgrade

1, PVC-A insulation (base version, with 70 ℃ long-term operating temperature)

2, XLPE cross-linked polyethylene insulation (90 ℃ rated working temperature and higher current-carrying capacity)

Customizable inner bedding

1, Standard bedding adopts PVC material;

2, PE or LSZH bedding is available to match the outer-sheath material.

Optional electromagnetic-shielding layer

Optional copper-tape shield fitted between insulation and bedding to block industrial electromagnetic interference from inverters and control devices.

Example: Cu/PVC-Shield/STA/PE

Multiple-core-combination layouts

2-core, 3-core, 4-core, 5-core, 3+1 core, 3+2 core, 4+1 core configurations

Special modified functional outer sheath

Custom-made sheath for flame-retardant, fire-resistant, UV-resistant, oil-resistant, anti-termite, cold-resistant and anti-corrosion performance

Reasons for bulk‑ordering cables from Taitong Cable? 

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As a large-scale Chinese-based manufacturer of wires and cables, Taitong Cable has delivered cable supplies for well-known large-scale projects and built-up long-term reliable cooperative partnerships since 2002. We have accumulated rich experience in overseas-oriented international trade and bulk-order procurement services. Supported by five independent manufacturing plants and more than 30 branch offices across regions, we supply premium-grade cable goods and thoughtful one-stop services for global purchasers.

Our factory has obtained complete-set authoritative qualifications, including ISO-9001 quality-management, ISO-14001 environmental-management, ISO-45001 occupational-safety-health certifications, CE compliance and third-party type-test approvals. All our cables strictly comply with IEC international specifications, HD, VDE and other regional standards.

Backed by robust manufacturing capacity, we guarantee fast-track stock preparation for worldwide power - engineering projects, factory construction, residential-zone development, municipal-civil infrastructure and large-scale warehouse facilities. Our full-series cables rated below 35-kV satisfy international-standard requirements. Low voltage multi-core STA armoured copper PVC insulated and sheathed power cables, including the NYBY series, ranks among our flagship products for bulk procurement. With seasoned sales teams and solid industrial strength, we are your trustworthy long-term supplier for large-volume cable purchases.