YY LSZH Cable

What is YY LSZH (HSLH) Cable?

The YY LSZH (HSLH) cable is a low-voltage, unarmored and unscreened flexible multi-core control cable featuring Class 5 flexible plain copper conductors, halogen-free insulation, and a grey LSZH outer sheath complying with VDE 0207-303-7, IEC/EN 60332-1-2, and IEC/EN 60332-3-24 standards. It is designed for fixed installation and free-moving flexible connection up to 300/500V in tooling machinery production lines, instrumentation, and industrial control equipment without tensile stress.

Engineered as an environmentally safe alternative to standard PVC control lines, the cable incorporates zero-halogen thermoplastic compounds that prevent dense black smoke and toxic, corrosive acid emissions in the event of a fire. This halogen-free construction protects sensitive electronic apparatus from acid corrosion and safeguards human life along emergency evacuation paths in dense manufacturing facilities and populated buildings.

YY LSZH (HSLH) Cable Construction

• Conductor: Class 5 flexible stranded plain bare copper conductors per IEC/EN 60228 delivering superior conductivity and dynamic flex fatigue resistance.
• Insulation: Low Smoke Zero Halogen (LSZH) thermoplastic compound engineered for dependable dielectric strength up to +80°C.
• Bedding / Inner Layer: Compact stranded core assembly designed for flexible handling and clean sheath removal.
• Screen / Armour: Unscreened / Non-armored design engineered to minimize total weight and outer cable diameter.
• Outer Sheath: Flame-retardant Low Smoke Zero Halogen (LSZH) compound, flame tested to IEC/EN 60332-1-2 and IEC/EN 60332-3-24.
• Core Identification: 2 cores: Black with White numbers; 3 cores and above: Black with White numbers + Green/Yellow protective earth conductor (colour-coded cores available upon request).
• Sheath Colour: Grey.

Applications

YY LSZH (HSLH) cables are specifically designed for connecting control desks, measurement devices, and automated machinery across public buildings and industrial plants requiring low smoke zero halogen safety performance. Their halogen-free composition allows installation in dry, ambient, and wet indoor locations under free mechanical movement without tensile load.

Typical installation environments include:

• Public Infrastructure & Transport: Airports, railway terminals, hospitals, and educational facilities demanding stringent fire evacuation safety.
• Automated Tooling & Packaging Lines: Flexible multi-core control wiring for assembly stations and indoor robotic links.
• Data Centers & Server Facilities: Control interconnections located near delicate computing hardware sensitive to acid gas degradation.
• Switchgear & Industrial Control Cabinets: High-density internal equipment wiring requiring tight bending in indoor wet or dry rooms.

Specifications & Dimensions

The YY LSZH (HSLH) cable range covers multi-core configurations from 2 cores up to 34 cores (and extended ranges up to 35mm²), with conductor cross-sections spanning 0.5mm² to 35mm² supporting continuous current loading up to 135A at 30°C. Operating at a rated voltage of 300/500V, the cable supports fixed installations from -40°C to +80°C and moved flexible applications from -15°C to +70°C, maintaining a minimum bending radius of 6× OD (fixed) and 15× OD (flexed). Conductor DC resistance values range from 39 Ω/km (0.5mm²) down to 0.554 Ω/km (35mm²), with all core insulation thicknesses, outer sheath dimensions, and cable weights manufactured in strict accordance with VDE 0207-303-7 and European harmonized norms.

Standards

Huadong Cable Group manufactures and factory-tests YY LSZH (HSLH) control cables to ensure strict compliance with European electrical safety and reaction-to-fire standards:

Design Standards: VDE 0207-303-7, IEC/EN 60228
Flame Retardancy: IEC/EN 60332-1-2, IEC/EN 60332-3-24
Halogen-Free & Smoke Emission: IEC/EN 60754-1/2 (Zero Halogen), IEC/EN 61034-1/2 (Low Smoke Density)
Voltage Rating (Uo/U): 300/500V
Temperature Spectrum: Fixed: -40°C to +80°C; Flexed/Moved: -15°C to +70°C
Regulatory Compliance: CE Marked, European Regulation EN 50575 (CPR Compliant), Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH EC 1907/2006

Frequently Asked Questions

Q: What is the key difference between YY PVC (YSLY) and YY LSZH (HSLH) cables?
A: While both are unshielded flexible control cables, YY LSZH utilizes halogen-free compounds for core insulation and sheath, emitting no corrosive acid gases and significantly less smoke during combustion compared to standard PVC.

Q: Can the YY LSZH (HSLH) cable be used outdoors or buried underground?
A: No, YY LSZH cables are specifically engineered for indoor dry, ambient, and wet room applications; they are not intended for outdoor UV exposure or direct underground burial.

Q: What are the minimum bending radius limits for YY LSZH flexible cables?
A: The cable requires a minimum bending radius of 6 times the overall diameter (6× OD) for fixed routing and 15 times the overall diameter (15× OD) for moved flexible installations.

Q: What payment terms does Huadong Cable accept for international supply orders?
A: We accept standard international commercial payment terms including Telegraphic Transfer (T/T) and 100% Irrevocable Letter of Credit (L/C) at sight for engineering contractors and system integrators.

Why Choose Huadong Cable for YY LSZH (HSLH) Cable?

Huadong Cable Group manufactures YY LSZH (HSLH) control cables in strict compliance with VDE 0207-303-7 standards, backed by certified IEC/EN 60332-1-2 and IEC/EN 60332-3-24 flame propagation testing. To ensure optimal conductivity, minimal line drop, and outstanding flexibility across industrial tooling circuits, we utilize high-purity oxygen-free Class 5 flexible plain stranded copper conductors. Combined with high-grade LSZH insulation and a flame-retardant grey LSZH jacket, the cable provides reliable thermal stability up to +80°C while safeguarding critical plant environments from toxic and corrosive fumes during fire incidents.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates advanced multi-core stranding and zero-halogen extrusion lines certified to ISO 9001, CE, CPR (EN 50575), RoHS, and REACH protocols. By eliminating commercial middlemen, we offer competitive direct factory pricing, 100% Mill Test Certificates (MTC) tested in accredited testing facilities, tailored continuous drum lengths on ISPM 15 export wooden reels, and seamless door-to-port logistics for EPC contractors and machinery manufacturers worldwide.