Copper PVC Fire Resistant Flexible Control Cable

Product Models: N(NH)-KVVR, N(NH)-KVVRP, etc.

Copper PVC Fire Resistant Flexible Control Cable is designed for control and signal circuits where flexible installation and fire-resistance requirements need to be considered together. It uses Class 5 flexible copper conductors, a mica-tape fire-resistant layer, and extruded PVC insulation and sheath. This construction is intended to help maintain circuit integrity for a specified period under fire conditions, depending on the applicable cable configuration and test requirements.

The flexible conductor structure makes the cable suitable for control cabinets, fire-protection systems, mechanical and electrical equipment, and industrial automatic-control circuits where repeated bending or confined wiring spaces can make installation more demanding. Cable selection should be based on conductor cross-section, core quantity, installation method, fire-performance requirements and the electrical characteristics of the connected equipment.

Product Specification Dimensions and Technical Parameter Table

Construction and Performance

The cable construction combines a flexible copper conductor with a mica-tape fire-resistant layer and PVC insulation and sheath. Each part has a specific function in the overall cable structure, so the required specification should be selected according to the control circuit, installation environment and applicable fire-performance requirements.

Flexible Class 5 Copper Conductor

The multi-strand conductor construction provides greater flexibility than a solid conductor of the same nominal cross-section. This is useful for cabinet wiring, equipment connections and installations where the cable needs to pass through limited spaces or around equipment components.

Mica-Tape Fire-Resistant Layer

Mica tape is incorporated as the fire-resistant layer around the conductor. In a fire-resistant cable construction, this layer is intended to help protect the conductive path when the cable is exposed to elevated temperatures or flame for the duration defined by the applicable test conditions.

PVC Insulation and Sheath

The extruded PVC insulation provides electrical separation between the conductor and surrounding cable components, while the outer sheath provides additional mechanical and environmental protection. The insulation thickness varies with the nominal cross-section, as shown in the specification table above.

Where It Is Used

Copper PVC Fire Resistant Flexible Control Cable is intended for control and signal wiring where circuit continuity under specified fire conditions is an important design consideration. Typical applications include fire-control cabinets, building fire-protection systems, mechanical and electrical equipment, power-related control systems, and industrial automation installations.

In confined control cabinets or equipment enclosures, the flexible conductor construction can simplify routing compared with less flexible cable constructions. For industrial installations, the final selection should also consider ambient temperature, cable tray or conduit arrangement, bending requirements, moisture, oil or other environmental exposure, and the electrical load of the connected control circuit.

Quality and Specification Verification

For this type of cable, quality assessment should be based on measurable construction and electrical parameters rather than appearance alone. Conductor cross-section, conductor resistance, insulation thickness, fire-resistant layer, core quantity and applicable fire-performance requirements should be checked against the agreed specification.

Before production or shipment, project documentation can be matched with the required model, cross-section, core quantity, conductor type and test requirements. For engineering applications, customers can also confirm whether additional inspection records, technical data or samples are required before bulk production.

What Should Be Confirmed Before Ordering?

The appropriate specification depends on the control system and installation conditions. Before placing an order, it is useful to confirm the following points:

1. Conductor cross-section according to the circuit requirements and applicable electrical calculations.

2. Required core quantity and whether a standard or customized core configuration is needed.

3. Fire-resistant performance requirements and the applicable project or testing standard.

4. Installation method, including control cabinet wiring, conduit installation, cable tray installation or equipment connection.

5. Required cable length, packaging, documentation and inspection requirements for the project.

FAQ

1. Can this Copper PVC Fire Resistant Flexible Control Cable maintain circuit continuity during a fire?

The cable is designed with a mica-tape fire-resistant layer to help maintain the conductive path for a specified period under applicable fire-test conditions. Actual fire-resistance performance depends on the cable construction, installation method and test requirements of the specified product.

2. What conductor material is used in this cable?

It uses flexible copper conductors. The conductor configuration and maximum single-wire diameter vary according to the nominal cross-section, with the relevant values provided in the technical table.

3. What cross-sections and core quantities are available?

The listed cross-sections are 0.5mm², 0.75mm², 1.0mm², 1.5mm², 2.5mm², 4mm² and 6mm². Recommended core quantities include 2 to 61 cores in the configurations shown in the table, and customized core quantities can be discussed according to project requirements.

4. Can the cable be customized for a project?

Yes. Core quantity and cable length can be customized according to the project specification. Before production, the required conductor cross-section, core configuration, fire-resistant construction, installation conditions and documentation requirements should be confirmed.

5. Where is this type of cable commonly used?

Typical applications include fire-control cabinets, building fire-protection systems, mechanical and electrical equipment, industrial control circuits and other installations where flexible wiring and fire-resistant cable construction are required.

6. What technical information should be provided for quotation?

For an accurate quotation and specification check, please provide the required model, conductor cross-section, core quantity, cable length, installation environment and applicable fire-performance requirements. If available, project drawings or technical specifications can also be used to confirm the cable construction before production.