Terminology » Other Wireless » LSZH Cable: Advantages and Disadvantages

LSZH Cable: Advantages and Disadvantages

lszh cable cable halogen safety fire

This page explores the pros and cons of LSZH cable, outlining its benefits and drawbacks.

What is LSZH Cable?

Introduction:

  • LSZH stands for Low Smoke Zero Halogen.
  • These cables are made with jacket material that’s free from halogenic materials like chlorine and fluorine. This is important because these chemicals become toxic when burned.
  • LSZH cables are commonly used in Europe.

LSZH Cable

  • They are used in environments like shipboard applications and computer networking rooms where toxic or acidic smoke and fumes could harm people or equipment.
  • Examples of Halogens include fluorine, chlorine, Bromine and Iodine.
  • When burned, these materials release acidic smoke that can be harmful.
  • These cables are designed to self-extinguish.

Benefits or Advantages of LSZH Cable

Here’s a look at the benefits of using LSZH cable:

  • They are best used where people are in close proximity to cable assemblies and where there isn’t adequate ventilation in case of a fire, or where there are poorly ventilated areas.
  • They are generally cost-effective.
  • LSZH cables are used in railway systems, especially where high voltage signal wires run in underground tunnels. This reduces the potential for toxic gas accumulation if the cables catch fire.
  • They are made using thermoplastic compounds that emit limited smoke and contain no halogen.
  • They don’t produce dangerous gases when exposed to high heat sources.
  • The LSZH cable jacket helps protect people from fire, smoke, and dangerous gases released from burning cables.

Drawbacks or Disadvantages of LSZH Cable

Here are the drawbacks to consider when using LSZH cable:

  • LSZH cable jackets often contain a high percentage of filler material to achieve low smoke and zero halogen properties. This can make the jacket less resistant to chemicals and water compared to non-LSZH cables.
  • The jacket of LSZH cable can be prone to cracking during installation. Special lubricants are often needed to prevent damage.
  • LSZH cables offer limited flexibility, making them unsuitable for applications like robotics.