Armored Cable SWA AWA STA

Armored cables are made of different material conductors in a metal sleeve with insulating material, which is processed into a solid assembly that can be bent.

ZMS Cables is a quality supplier of aluminum and copper wire and armoured cables and is responsible for supplying a wide range of robust and durable cables of all types.

These cables are manufactured in accordance with British, European, and international standards and specifications.

And ZMS Cable Company has many high-quality cable products.

Such as armored LSZH sheathed power cables, AAC, AAAC, ACSR conductors, ABC cables, power cables, underground cables, control cables, etc.

The armored cable is one of the best-selling products of the company.

Our company can provide professional and personalized products and engineering services according to the actual working conditions and requirements of each customer.


Armored cable is made of different conductor materials in a metal sleeve with insulating material, which is processed into a solid combination conductor that can be bent.
The armored cable includes an armored thermocouple, armored RTD, armored heater, and armored lead.

Armored cables are also commonly referred to as wire-armored cables, SWA cables, main power cables, single-core power cables, and multi-core book-armored cables.

SWA: steel wire armored

AWA: aluminum wire armored

STA: steel tape armored

ATA: aluminum tape armored


An armored cable mechanical protection layer can be added to any structure of cable to increase the mechanical strength of the cable and improve erosion resistance.

This is designed for areas susceptible to mechanical damage and erosion of the cable.

This design also allows the cable to be laid in any kind of way and is more suitable for direct burial in rocky areas.

In addition to the above uses, the cable with the armor layer can also enhance the tensile strength, compressive strength, and other mechanical protection to extend the service life.

It is mainly used for temperature measurement, signal transmission, and special heating in the chemical industry, metallurgy, machinery manufacturing, power generation, and a scientific test, etc. 

The largest amount is the armored thermocouple.


Typically, the construction of an aluminum or steel wire armored cable consists of the following six parts.

Conductor: Common stranded copper or aluminum
Insulation layer: Cross-linked polyethylene (XLPE), etc.
Matting: Form a protective barrier between the insulation layer and the armor
Armor: Steel or aluminum armor Steel wire or steel tape
Sheathing: Thermoplastic LSZH compound type LTS3 in accordance with BS 7655-6.1. UV resistance, hydrocarbon resistance, oil resistance, rodent resistance, and resistance, etc. are available for adoption.
Voltage: 600/1000V, 6.35/11kV and 19/33kV.

The construction of the above products will vary depending on the use and material of each cable.
In addition to the above constructions, armoured cables may also include steel tape or wire armour, protective screens, and other special materials.
We offer a comprehensive range of BASEC-approved armoured cables manufactured to a number of British, European, and International standards.
These include BS5467, BS6622, BS6724, BS7835, BS EN 50267, IEC 60502, and BS EN 60332-1-2 (for single-core cables).

We can also supply copper (Cu) or aluminum (Al) conductors, and polyvinyl chloride (PVC) or low smoke and halogen-free (LSZH) sheaths.

The following is a brief description of several types of underground armored cables.

Steel Wire Armored Cable — SWA

ZMS' SWA armored wire and cable offers a full line of rugged low-voltage armored and medium voltage armored cables.

These include 2-core, 3-core, 4-core, 5-core, and more-core armored power cables rated up to 33kv.

The armored cables are designed to provide additional protection against mechanical stresses that can cause damage to the cable.

We also offer a custom SWA cable service. It will be completely customized according to your needs and regulations on the material size of the product.

Size: 1.25mm² to 325mm²
Conductors: copper, aluminum
Insulation: PVC, PE, XLPE, RUBBER
Rated temperature: 60℃~105℃
Rated voltage: 600V, 1000V
Standard: IEC, BS, JIS, OEM, ODM

Steel Tape Armored Cable — STA

STA cable is a steel tape armored cable.

It is usually used for low and medium voltage transmission lines.

Steel tape armored cable has a metal armor layer inside the cable sheath, which is mainly used to prevent the cable from being damaged by external crushing.

We also offer a custom SWA cable service. It will be completely customized according to your needs and regulations on the material size of the product.


Size: 1.25mm² to 325mm²
Conductors: copper, aluminum
Insulation: PVC, PE, XLPE, RUBBER
Rated temperature: 60℃~105℃
Standard: IEC, BS, JIS, OEM, ODM

Aluminum Wire Armored Cable — AWA Single core LSZH cable with aluminum wire armour (AWA)

AWA (Aluminum Wire Armored) cable is generally a single-core cable because it is non-magnetic. 

Therefore it is also known as Single core LSZH cable with aluminum wire armour (AWA).

When an electric current passes through the cable, a magnetic field is created and the higher the voltage, the greater the magnetic field.
The magnetic field will induce currents (eddy currents) in the wire armor, which can lead to overheating of the AC system.
The non-magnetic aluminum armored cable prevents this from happening.

It is commonly used for main power and auxiliary control cables in a variety of environments, including overhead transmission lines, outdoor, indoor and underground power systems, and cable ducts.
This series of armored power cables can replace PVC with MDPE outer sheath to improve abrasion resistance and water resistance, and its structure will become XLPE/PVC/AWA/MDPE.


Conductor: Copper, aluminum.
Insulation: Cross-linked polyethylene (XLPE)
Inner sheath: Polyvinyl chloride (PVC)
Armor: AWA
Outer sheath: PVC, PE, LSZH, MDPE

Aluminum Tape Armored Cable — ATA

ATA armored cable products can be used in transmission and distribution lines below medium and low voltage. 

It not only has excellent electrical and mechanical properties, but also has strong resistance to chemical corrosion, thermal aging, and environmental stress.

Applicable voltage level 0.6/1KV, 1.8/3KV, 3.6/6KV, 6/10KV, 10KV, 11KV, 15KV, 8.7/15KV, 18/30KV, 19/33KV, 26/35KV


Conductor: copper, aluminum.
Insulation: PVC, PE, XLPE, RUBBER
Inner sheath: PVC, PE, LSZH
Armor: AWA
Outer sheath: PVC, PE, LSZH, MDPE

NYBY PVC 0.6/1kV Power Cable

NYBY cables are suitable for installation indoors, in cable channels, and in above-ground ducts in switching stations and power stations.

There are also channels and above-ground ducts for switchgear, power stations, and industrial applications.

In harsh environments, the cable requires a high level of mechanical protection.

Rated voltage: 0.6/1kV

Test voltage: 3.5kV

Temperature Rating: Maximum operating temperature. +70ºC

Max. short circuit. +160ºC

Minimum bending radius: 12 x total diameter

Conductor: 2-stage stranded copper

Insulation: PVC (polyvinyl chloride)

Filling: PVC (polyvinyl chloride)

Armor: Double galvanized steel tape

Outer sheath: PVC (polyvinyl chloride)

Standards: IEC 60502-1, VDE 0276-603, IS 1516.1

Flame resistance according to IEC 60332-1

Characteristics of Armored Cables

Armored cable is generally fixed laying power cable, which is commonly known as fixed in one place without moving basically, and transmits electric power by a power line.

The purpose of cable plus armored layer besides the above can also enhance the tensile strength, compressive strength, and other mechanical protection to extend the service life.

The temperature of the conductor must not exceed 90 degrees in a long-term working environment.
When the cable is short-circuited the maximum temperature must not exceed 250 degrees and the duration must not exceed 5s.
The temperature of the cable OO cannot be lower than the horizontal temperature, which is 0 degrees.
The minimum bending radius (D is the outer diameter of the cable) is 15D for single-core cables; 12D for multi-core cables.
For special flame retardant products to meet the requirements of GB/T 199666-2005 "flame retardant and fire resistant wire and cable general rules".

Can I run my own armored cable?

To save money, you can choose to lay it yourself.

However, be sure to hire an electrician to test and connect it for safety, as this will also save you the trouble of not knowing how to connect the armored cable to the outlet.

Placing the cable below or above ground is essential to protect it from rodent bites and stop it from becoming a tripping hazard.

How deep does the armored cable need to be buried underground?

For best results, it is usually recommended to install at least 450 mm depth underground.

This depth increases to 600 mm where there is a high potential for interference.

Production Services

If you don't know how to choose the right cable product, or if you don't find the type and size of cable you need on this page.
Don't worry, please contact us.
You can send us your requirements and we can help you choose the right cable.

You can provide us with the following information: cable voltage, conductor material, insulation and sheath material, shielding type, armor type, etc.
Or you can also provide the cable installation environment, application requirements, etc.
We will serve you wholeheartedly.

Delivery and Shipping Services

ZMS offers good delivery solutions along with high quality cables.
While ensuring the safe delivery of products, we provide the best packaging and shipping solutions to greatly reduce our customers' shipping costs.

ZMS Packaging

ZMS cable packaging is provided in the form of wooden rolls, corrugated boxes, and coils.
The cable ends are sealed with BOPP self-adhesive tape and non-hygroscopic sealing caps to protect the cable ends from moisture.
We can print the required markings on the outside of the drum with waterproof material upon request.

Minimum Bending Radius: 10x Overall Diameter

ConductorFTX200 05RZ1MZ1-R

No. Of Core XCross SectionNo. /Nominal Diameter Of StrandsNominal Insulation ThicknessDiameter Under ArmourArmour Wire DiameterNominal Overall DiameterApprox. Weight
Noxmm2No. /mmmmmmmmmmkg/km

Conductor Operating Temperature : 90°C Ambient Temperature: 30°C


Conductor cross-sectional areaTwo-core cables, d.c.Two-core cable, single-phase a.c.Three-or-four core cable, three-phase a.c.


Flame Retardance (Single Vertical Wire Test)EN 60332-1-2; IEC 60332-1-2;BS EN 60332-1-2; VDE 0482-332-1; NBN C 30-004 (cat. F1); NFC32-070-2.1 (C2); CEI 20-35/1-2; EN50265-2-1*; DIN VDE 0482-265-2-1*
Reduced Fire Propagation (Vertically-mounted bundled wires & cabletest)EN 60332-3-24 (cat. C); IEC 60332-3-24; BS EN 60332-3-24; VDE 0482-332-3; NBN C30-004 (cat. F2); NF C32-070- 2.2 (C1); CEI 20-22/3-4; EN 50266-2-4*; DINVDE 0482-266-2-4
Halogen FreeIEC 60754-1; EN 50267-2-1; DIN VDE 0482-267-2-1; CEI 20-37/2-1; BS 6425-1*
No Corrosive Gas EmissionIEC 60754-2; EN 50267-2-2; DIN VDE 0482-267-2-2; CEI 20-37/2-2; BS 6425-2*
Minimum Smoke EmissionIEC 61034-1&2; EN 61034 -1&2; DIN VDE 0482-1034-1&2; CEI 20-37/3-1&2; EN 50268-1&2*; BS 7622-1&2*
No Toxic gasesNES 02-713; NF C 20-454

Note: Asterisk* denotes superseded standard.

Customized Armoured LSZH Sheathed Power Cables 

Colors of Insulation

With Earth ConductorWithout Earth Conductor
2 Cores-Brown, Blue
3 CoresYellow / Green, Brown, BlueBrown, Grey, and Black
4 CoresYellow / Green, Brown, Grey, BlackBrown, Grey, Black, Blue

Power Cable

Power cables are used to transmit and distribute electrical energy. Power cables are commonly used in urban underground power grids, power station lead-out lines, power supply within industrial and mining enterprises, and over-the-river transmission lines.

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ZMS Cable have a wide product scope, includes: Power cables up to 500kV, AAC, AAAC, ACSR conductors, ABC Cable,electric wires, instrument cable, telecommunications cable, Stay wires. With advanced manufacture technology, rich human resource and effective management system, we guarantee all products are manufactured strictly in accordance with GB, IEC, BS, NFC, ASTM, DIN standards,etc. Beyond quality control, ZMS have been trying its best to offer much higher standard of services rather than expected.

The Adjuster
All customised cables designed by our cable engineer will be subject to testing to relevant standards and appropriate performance criteria. Bespoke cable testing will be conducted under our CNAS accreditation where appropriate. Where required by industry or application, we can submit for relevant cable certification and cable approval processes. For more information or to discuss possible custom designed cable solutions, please complete an enquiry form, contact our technical experts on the Technical Hotline +86 (0)371 6782 9333, or

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