How to Identify LSZH Cables - LINKE CABLE
LSZH (Low Smoke Zero Halogen) cables are high-safety wiring solutions widely used in buildings, subways, railways, and industrial facilities. Different from ordinary PVC cables, they produceno toxic halogen gas, minimal smoke and feature self-extinguishing performance in case of fire, effectively protecting personnel and equipment safety. To help users quickly identify genuine standard LSZH cables, LINKE CABLE sorts out simple and practical identification methods as follows.
1. Check Cable Surface Markings
Genuine LSZH cables have clear, durable printed markings on the outer sheath. Qualified products will be marked with LSZH / LSOH / HFFR, along with manufacturer information, compliance standards (IEC 61034, EN 50267), voltage and spec parameters. Blurred, faded or missing professional markings usually indicate non-standard LSZH cables.
2. Simple Burning Test (Most Intuitive)
The combustion feature is the core difference between LSZH and ordinary cables:
-
LSZH Cable: Self-extinguishes quickly after leaving the flame, emits tiny light smoke with no pungent odor, and leaves white powdery residue
-
Ordinary PVC Cable: Continues burning, produces dense black smoke and strong acidic toxic smell, with sticky black residue after burning
Note: Conduct the test in a well-ventilated and safe environment.
3. Distinct Physical Characteristics
LSZH sheath materials have stable and unique physical properties: matte non-glossy surface (different from PVC’s glossy finish), slightly rough texture, clean and burr-free incision, and no sticky plastic filaments. Besides, LSZH materials are denser than water and will sink in clean water.
4. Verify Professional Certifications
Reliable LSZH cables must support complete qualification documents, including third-party test reports (halogen-free & low smoke data), CE, IEC and other international compliance certificates, and MSDS safety datasheets. All LINKE CABLE LSZH products are fully certified with complete test documents for project inspection and acceptance.
Choose LINKE CABLE Reliable LSZH Solutions
As a professional cable manufacturer, LINKE CABLE strictly controls raw materials and production processes. Our full range of LSZH cables meet global safety standards, suitable for construction, new energy, transportation and industrial engineering scenarios. We provide authentic, high-safety and durable LSZH cables with reliable after-sales technical support.
Contact us for customized LSZH cable solutions for your projects!
Your message must be between 20-3,000 characters!
