What changes with special coatings (LSZH, armored)?

Introduction to Special Coatings

Special cable coatings, such as LSZH (Low Smoke Zero Halogen) and armored cables, have gained prominence for their characteristics that go beyond simple physical protection. They offer essential benefits for environments that require greater safety, resistance and performance, directly influencing the choice of cables for different applications.

What is LSZH sheathing?

LSZH sheathing is a type of material that contains no halogens and produces little smoke in the event of a fire. This makes LSZH cables ideal for enclosed environments such as public areas, hospitals and data centers, where the safety of people and equipment is a priority. The absence of halogens reduces the release of toxic gases, minimizing health risks.

Advantages of LSZH Coated Cables

• Fire safety: The low smoke emission allows for better evacuation in emergencies.
• No toxic gases: Prevents poisoning and damage to electronic equipment.
• Complies with standards: Meets international safety standards.

What are Shielded Cables?

Shielded cables have an additional layer of metallic protection, such as aluminum tape, copper mesh or steel, which protects against electromagnetic interference (EMI) and mechanical damage. This type of coating is widely used in industrial environments and outdoor applications where there is greater exposure to risk.

Benefits of Shielded Coatings

• Protection against interference: Shields reduce noise and improve signal quality.
• Mechanical resistance: Protects cables against impact and wear.
• Durability: Suitable for harsh environments, increasing cable life.

Main Differences between LSZH and Shielded

While both coatings add security and resistance, they serve different purposes. LSZH is focused on fire safety and human health, while armored cables prioritize protection against electromagnetic interference and physical damage.

When to opt for each type of jacket?

Both jackets are important, but the choice must consider the environment and the need for the system:

• LSZH: Ideal for indoor locations with a large circulation of people, where safety from smoke and toxins is vital.
• Armored: Recommended for industrial environments, exposed to electromagnetic interference or where cables are subject to physical damage.

Impact on Costs and Maintenance

Special coatings naturally increase the initial cost of cables. However, the investment is offset by greater safety, comfort and less need for maintenance. The correct use of these cables can prevent unexpected downtime, accidents and health risks, reducing indirect costs.

Final Thoughts

The correct choice of cable sheathing is fundamental to guaranteeing the safety, efficiency and durability of the system. As we have seen, LSZH sheathed and armored cables have specific characteristics that meet different demands and are essential for many modern applications.