6/10kV Fire Retardant Electrical Cables ZC-VV22 Steel Tape Armored Cable

The ZC-VV22 is a 0.6/1kV low-voltage power cable with PVC insulation, a PVC sheath, and steel tape armor, meeting flame-retardant requirements (up to Class C as needed). It is an ideal choice for applications requiring reduced flame spread risk and mechanical protection, such as building feeders, utility corridors, and cable trays.

If your project requires a mainstream PVC armored cable while limiting the spread of flame along its path, the ZC-VV22 is the ideal choice. It combines the classic VV22 construction with flame-retardant properties, meeting common requirements in public buildings, commercial facilities, and industrial power distribution, where safety regulations are a critical aspect of approval and delivery.

ZC-VV22 is generally understood as:

• ZC: Specified flame retardant rating (often referred to as Class C in some specifications)
• VV22: PVC insulated, PVC sheathed, steel tape armored power cable structure

This type of cable is suitable for fixed-installation low-voltage power distribution lines, whose wiring path requires both mechanical protection (armoring) and reduction of flame spread rate (ZC requirement).

• Typical Rated Voltage: 0.6/1 kV
• Typical Applications: Low voltage feeders and distribution lines
• Installation Type: Fixed installation

• Main and branch feeders in building basements, risers, and service shafts (as permitted by project specifications)
• Cable trays and ducts requiring flame retardant properties in commercial complexes, warehouses, and factories
• Utility corridors and equipment rooms with dense cable routing, where limiting flame spread is a design objective
• Protected trenches or conduits, steel tape armor helps reduce the risk of damage from compression and external stresses
• Upgrade projects, upgrading standard PVC cables to flame-retardant cables to meet inspection requirements

• If Low Smoke Halogen-Free (LSZH) is mandatory, LSZH cables should be specified instead of PVC cables.
• If the circuit must operate continuously in a fire environment, fire-resistant cables should be specified.
• If the wiring is for direct burial under high impact or high risk, consider armored construction suitable for the method and environment.

• Reduced Risk of Flame Spread Along Cable Lines
  Flame retardant requirements aim to limit the spread of flame along cable lines, thereby ensuring the safety of buildings and industrial installations.
• Steel Tape Armor Provides Mechanical Protection
  Armoring helps protect cables from the compressive and external stresses common in conduit, corridor, and built environments.
• PVC Systems Enable Cost-Effective Low-Voltage Distribution
  PVC insulation and sheathing remain a common choice for everyday low-voltage distribution, especially in situations where advanced materials are not required.
• Easy Procurement, Simplified Bill of Quantities
  Universal core quantities and cross-sectional dimensions support project procurement, repeat orders, and phased delivery.

• Conductor: Copper stranded wire
• Insulation: PVC
• Inner Layer: Padding or inner sheath (depending on structure)
• Armor: Steel tape (22 structure)
• Outer Sheath: PVC
• Cable Type: Flame-retardant armored low-voltage power cable, suitable for fixed installation

• Copper Conductor Stranding
  The stranding method is controlled to meet resistance targets and actual installation operation requirements.
• PVC Insulation Extrusion
  The PVC insulation layer uses a thickness-controlled process to ensure stable low-voltage performance.
• Core Assembly
  The insulated core wires are laminated to maintain geometric stability and improve pulling and wiring performance.
• Padding and Steel Tape Armoring
  The protective layer supports the armor interface, then a controlled overlap of steel tape armor is used to enhance compressive strength.
• Flame-Retardant Sheath Formulation and Extrusion
  The required flame retardant rating is achieved by selecting appropriate flame retardants and controlling the process.
• Routine Inspections
  Typical inspections include conductor resistance, insulation/sheath thickness, electrical testing according to required standards, dimensional inspection, and flame retardancy verification according to the specified acceptance protocol.

2 Cores/3 Cores/4 Cores/5 Cores (Depending on the Project)

1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300

1-core options typically use a single-core armored design depending on project requirements (please confirm with your supplier). Standard

1. Confirm the flame retardant requirements and acceptance rating in your Bill of Materials (BOQ). (ZC)
2. Confirm installation route (tray, shaft, corridor, duct, protective trench) and mechanical risk level.
3. Select core quantity based on system design (neutral and PE line layout).
4. Determine dimensions (length, grouping, environmental/soil conditions, installation method) based on current carrying capacity and voltage drop.
5. Plan reel length to reduce joints on long feeder paths.
6. Confirm document package for approval and on-site acceptance.

Q1 What is the purpose of ZC-VV22?

A It is used for low-voltage feeders and distribution circuits where steel tape armor protection is required, and flame-retardant properties are specified to help limit the spread of flame along the cable path.

Q2 What does ZC mean?

A ZC usually indicates a specified level of flame-retardant requirements (often referred to as Class C in some specifications). Specific acceptance tests and ratings should follow your project standards.

Q3 What is the difference between VV22 and ZC-VV22?

A VV22 is a PVC insulation, PVC sheath, steel tape armor construction. ZC-VV22 adds flame-retardant performance requirements for cable materials and testing.

Q4: Is ZC-VV22 suitable for cable trays and risers?

A: Yes, ZC-VV22 is typically used in cable trays, corridors, shafts, and areas with dense cabling when flame retardant properties are required, subject to project standards and local regulations.

Q5: Can ZC-VV22 be installed underground?

A: ZC-VV22 is typically used in conduits and protective trenches. For direct burial or harsh environments, please confirm the installation method and whether additional protection measures or alternative structures are required.

Q6: What information is needed for a quick and accurate quote?

A: Standards/guidelines, flame retardant rating requirements, conductor count, specification list, total length (meters), cabling type, destination, packaging method, and required documentation.

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  While we at JinHong provide high-quality cables, we also provide good delivery solutions. While ensuring the safe delivery of products, we provide the best packaging and transportation solutions, greatly reducing customers’ transportation costs.

JinHong cable packaging is provided in the form of wooden reels, corrugated boxes, and coils. The cable ends are sealed with BOPP self-adhesive tape and a non-hygroscopic sealing cap to protect the cable ends from moisture. We can print the required marks on the outside of the barrel with waterproof material according to customer requirements.