Can you manufacture cables according to IEC, BS, VDE or other international standards?

Yes. We manufacture cables according to IEC, VDE, BS, AS/NZS and other international standards. OEM and customized specifications are also available.

How do you ensure cable quality?

Every cable undergoes raw material inspection, in-process quality control and routine electrical testing before shipment.

Which countries do you export to?

We export to Southeast Asia, the Middle East, South America, Africa and Europe with experience serving EPC contractors, distributors and utilities.

Can you provide technical documents before ordering?

Yes. Datasheets, test reports, certificates and technical drawings can be provided before order confirmation.

Can you supply customized cable lengths and drum packaging?

Yes. Cable length, drum type, cable marking and packaging can all be customized according to your project.

Can I customize the conductor material, insulation and sheath?

Yes. Copper or aluminium conductors, PVC, XLPE, LSZH insulation and various sheath materials are available based on project requirements.

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LSZH Cable Standard H05Z1Z1-F: Fire Safety Requirements for Commercial Buildings

H05Z1Z1-F Technical Profile & Fire Safety Role

H05Z1Z1-F is a harmonized flexible cable rated at 300/500V, featuring fine-stranded annealed copper conductors (class 5 per EN 60228 [1]), thermosetting LSZH [2]insulation, and an LSZH outer sheath. Designed for dynamic or fixed indoor installations in commercial buildings, it eliminates toxic halogen acid gas emission during thermal breakdown. Core compliance mandates IEC 60332-1-2 (single-wire vertical flame propagation [3]), IEC 61034-2 (smoke density $\geq 60\%$ light transmittance), and IEC 60754-2 (halogen acid gas conductivity $< 10\,\mu\text{S/mm}$ and $\text{pH} \ge 4.3$ ). It balances mechanical flexibility with stringent life-safety evacuation criteria in high-occupancy spaces.

Technical & Compliance Parameter Matrix

Parameter	Specification Standard	Technical Value / Rating
Rated Voltage ( $U_0/U$ )	EN 50525-3-11 / HD 21.14	300 / 500 V
Test Voltage (AC)	EN 50395	2.0 kV (50 Hz, 15 min)
Conductor Class	EN 60228	Class 5 (flexible annealed copper)
Operating Temperature	EN 50525-3-11	$-15^\circ\text{C}$ to $+70^\circ\text{C}$ (flexing/fixed)
Flame Retardancy	IEC 60332-1-2	Pass (single insulated cable/conductor)
Smoke Density	IEC 61034-2	Light transmittance $I_t \ge 60\%$
Halogen-Free Status	IEC 60754-1 / -2	$\text{HCl}+\text{HBr} < 0.5\%$ , $\text{pH} \ge 4.3$ , conductivity $< 10\,\mu\text{S/mm}$
Minimum Bend Radius	EN 50565-1	$6 \times \text{overall diameter (fixed/flexible combined)}$

Material Composition & Core Architecture

Conductor: Flexible annealed copper (IEC 60228 Class 5) providing high fatigue resistance under repeated mechanical stress.
Insulation: Cross-linked or thermoplastic Low Smoke Zero Halogen compound preventing corrosive acid generation.
Sheath: Type Z1 thermoplastic LSZH compound offering low toxic fume emission and moderate abrasion resistance.
Identification: Standard color-coding or numbered cores with optional green/yellow protective earth.

Commercial Building Application & Deployment Rules

Primary Scenarios: Public assembly halls, HVAC control loops, recessed lighting feeds, and temporary power drops where escape routes require clear visibility.
Installation Constraints: Unsuitable for direct burial, outdoor exposure without UV-stabilized conduit, or high-mechanical-impact industrial trays without armor.
Compatibility Check: Must terminate with certified IP-rated or barrier glands maintaining enclosure integrity under thermal stress.

CJDL CABLE Engineering Insight

While H05Z1Z1-F serves general indoor building circuits, our engineering team recommends specifying halogen-free flexible cables for escape-route and high-occupancy feeders, where smoke density and gas acidity directly affect evacuation safety. All CJDL CABLE LSZH flexible cables are manufactured and routinely tested to IEC 60332-1-2, IEC 61034-2 and IEC 60754-2. In commercial building projects supplied by CJDL CABLE, compliant LSZH construction has helped maintain smoke clarity during emergency scenarios while meeting 300/500V installation requirements.

References

[1] Wikipedia. IEC 60228 [EB/OL]. 2026-01-01. [2] Wikipedia. Low smoke zero halogen [EB/OL]. 2026-01-01. [3] Wikipedia. IEC 60332 [EB/OL]. 2026-01-01.