# RZ1 AL

URL: https://www.chinneelectric.com/products-types/aluminium-cables/rz1-al/
Brand: Chinne Electric

## Summary
Chinne Electric RZ1 AL. LSZH cable for power transmission.

## Key facts
- Standards: IEC 60227, IEC 60502, GB/T standards
- Corrosion protection and durable finish options for long service life
- Fire-resistant and circuit-safe design for demanding environments
- Heavy-duty construction with weather and corrosion resistance
- Application: Designed for building wiring, industrial equipment, and commercial installations requiring dependable cable performance and compliance with international standards.

## FAQ
### What is the RZ1 AL cable and where is it typically used?
The RZ1 AL is a single-core or multi-core power and control cable with stranded aluminium conductors, cross-linked polyethylene (XLPE) insulation, and a thermoplastic low smoke zero halogen (LSZH) outer sheath. It is designed for fixed installations in building wiring, industrial plants, and commercial infrastructure where circuit integrity and fire safety are critical. The cable complies with IEC 60502 for voltage ratings up to 0.6/1 kV and follows constructional guidelines of IEC 60227.

### What advantages do aluminium conductors provide in the RZ1 AL cable?
Aluminium conductors in the RZ1 AL cable offer an excellent balance of weight savings, cost efficiency, and reliable conductivity for power distribution. The stranded aluminium design provides flexibility during installation while the cable’s corrosion-resistant finish and durable insulation system ensure a long service life even in demanding indoor environments. This makes it a practical choice for large-scale commercial and industrial projects where aluminium’s lower weight simplifies handling and support structures.

### How does the LSZH sheath improve safety in building installations?
The LSZH outer sheath emits very low smoke and no halogen gases when exposed to fire, drastically reducing toxic fume inhalation and visibility obstruction during evacuation. This property is critical for public buildings, data centers, and confined spaces, where compliance with IEC fire safety standards for low smoke and halogen-free materials helps protect both personnel and sensitive equipment.

### Which international standards does the RZ1 AL cable meet?
Chinne Electric engineers the RZ1 AL cable to comply with IEC 60227 for conductor design and insulation thickness, and IEC 60502 for overall construction and voltage ratings up to 0.6/1 kV. Additionally, it meets relevant GB/T standards, confirming its quality and global suitability for power transmission and building wiring applications.

### Is the RZ1 AL suitable for outdoor or harsh industrial environments?
Thanks to its heavy-duty construction and thermoplastic LSZH sheath, the RZ1 AL cable offers strong weather and corrosion resistance for outdoor installations when properly protected. The fire-resistant characteristics and circuit-safe design further support its use in harsh industrial environments, provided that installation follows the manufacturer’s guidelines and applicable standards for environmental exposure.

## Content
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RZ1 AL – Low Smoke Zero Halogen Power Cable with Aluminium Conductor
RZ1 AL is a single-core or multi-core power and control cable with stranded aluminium conductors, intended for fixed installations in building wiring, industrial plants, and commercial infrastructure. The cable features a cross-linked polyethylene (XLPE) insulation and a thermoplastic LSZH (Low Smoke Zero Halogen) outer sheath as defined in relevant parts of IEC 60502. Conductor design and insulation thickness follow IEC 60227 and IEC 60502 constructional requirements where applicable to rated voltages up to 0.6/1 kV.

Applications and Standards Compliance
This cable is specified for fixed wiring applications that require fire-performance characteristics with reduced smoke emission and zero halogen gas release during combustion. Typical installation environments include:

    Power distribution within residential and commercial buildings, including concealed and exposed conduit systems.
    Feeder circuits for industrial machinery and control panels where aluminium conductors are accepted by local installation codes.
    Public-access buildings, transportation infrastructure, and enclosed spaces where additional LSZH safety requirements apply.
    Indoor and outdoor use when installed in compliance with the bending radius and installation temperature limits defined in the relevant standard.

The cable satisfies the general construction and test requirements of the following published standards:

    IEC 60502-1 – Power cables with extruded insulation and their accessories for rated voltages from 1 kV up to 30 kV (for construction, insulation thickness, and routine test parameters).
    IEC 60227 – Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V (referenced for certain conductor and dimensional guidance where harmonized with IEC 60502 build principles).
    GB/T 12706.1 – Equivalent Chinese national standard for power cables with extruded insulation for rated voltages of 1 kV, mirroring IEC 60502-1 structure and test methodology.
    IEC 60332-1 and IEC 60332-3 – Flame retardance tests for single cable and bunched cables (required for LSZH constructions used in fire-risk areas).
    IEC 60754-1/-2 – Test on gases evolved during combustion of materials from cables (halogen acid gas content and pH/conductivity).
    IEC 61034-2 – Measurement of smoke density of cables burning under defined conditions.


Technical Specifications Summary

    Conductor material: Stranded aluminium, Class 2 per IEC 60228.
    Insulation: Cross-linked polyethylene (XLPE), type GP 1 as per IEC 60502-1 Table 3.
    Outer sheath: LSZH compound, type ST8 according to IEC 60502-1, halogen-free per IEC 60754.
    Rated voltage U0/U: 0.6/1 kV (600/1000 V).
    Maximum permissible conductor operating temperature: 90 °C for XLPE insulation under normal load.
    Maximum conductor temperature during short-circuit: 250 °C (max. 5 s).
    Minimum installation temperature: Typically -5 °C (dynamic) without pre-heating, unless otherwise specified by the installation standard.
    Minimum bending radius during installation: 15 × overall cable diameter for single-core; 12 × overall cable diameter for multi-core (referencing IEC 60502 installation guidelines).
    Fire performance – flame propagation: Conforms to IEC 60332-1-2 for single vertical cable flame test.
    LSZH emission profile: Halogen acid gas release ≤ 0.5 % as per IEC 60754-1; smoke density ≤ 60 % average light transmittance as per IEC 61034-2.
    Core identification: Colour code per HD 308 S2 or national standard requirements. Typical marking includes manufacturer identification, cable designation (RZ1 AL), voltage grade, and metre marking.


Frequently Asked Technical Questions

What is the primary rationale for specifying aluminium conductor in the RZ1 AL instead of copper for building feeders?
Aluminium conductor cables such as the RZ1 AL are selected where weight reduction, material cost efficiency, and stable raw material pricing are priorities for fixed distribution. Per IEC 60228 Class 2 stranded construction, the conductivity is standardized; designers must size the cross-sectional area approximately one AWG or two metric steps larger than the equivalent copper conductor to achieve the same ampacity at 90 °C. The XLPE insulation and LSZH sheath remain identical in material specification and performance regardless of conductor metal.

Does the RZ1 AL meet the requirements of IEC 60502-1 for low-smoke zero-halogen outdoor installation?
Yes. IEC 60502-1 defines construction, voltage withstand, and thermal endurance requirements. The outer sheath compound type ST8 requires compliance with LSZH performance tests (IEC 60754 and IEC 61034) as a conditional addition. Chinne Electric RZ1 AL is built with an ST8-grade LSZH compound tested to those criteria. For outdoor use, the ultraviolet resistance of the LSZH sheath must be verified against the specific outdoor exposure classification (e.g., UV protection per HD 605 or national code); additional mechanical protection may be required if exposed to direct sunlight for extended service life.

What is the correlation between section 1 of IEC 60227 and the RZ1 AL rated 0.6/1 kV?
IEC 60227 predominantly covers PVC-insulated cables up to 450/750 V and is not the primary dimensional or test standard for 0.6/1 kV XLPE cables. It is cited as a reference framework for certain conductor sizing conventions and workmanship expectations that align with the broader GB/T equivalent system for building wires. The construction and routine test conformance for the RZ1 AL are directly governed by IEC 60502-1. Where IEC 60227 is referenced in specifications, it provides supplementary guidance on conductor resistance and cross-section verification methods that remain technically consistent with the Class 2 aluminium conductors used in this cable.

Note: The FAQ responses are based on the technical construction and declared standards of the RZ1 AL product and reflect typical industry practice. For installation-specific compliance and contractor guidance, the applicable edition of the cited IEC/GB standards as well as local installation regulations should be consulted.
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