When to use LSZH cable?

As LSZH cables produce very little smoke when they come in contact with a flame, they are often used indoors, especially in public areas such as train stations, hospitals, schools, high buildings, and commercial centers where the protection of people and equipment from toxic and corrosive gases is critical. They are also used in poorly ventilated areas and hazardous environments. Data centers contain large amounts of cables and are usually enclosed spaces with cooling systems that can potentially disperse combustion byproducts through a large area. Other materials burning may also contribute greater amounts of dangerous gases which will outweigh the effect of the cables. There have been notable fires where cables burning contributed to corrosion, but in some instances, better fire response techniques could have prevented this damage.

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While researching the PopPack twin batten fluorescent light fitting to present an accurate description on our website, we came across an unusual specification: according to the manufacturer [Thorn Lighting], the PopPack range features zero-halogen cabling.

Strange, we thought. We almost never see the cabling specified. Why is a zero-halogen cable so special?

Why a Zero-Halogen Cable is So Special

For a basic definition: a zero-halogen cable does not contain any of the elements (fluorine, chlorine, bromine, iodine and astatine) known collectively as "halogens." For some reasons why they are notable, we turn to

1. It is often lighter, so overall cable network system weights can be reduced.
2. The environmental impact of halogen free cabling can be lower if there are fewer toxic chemicals.

It also seems that zero-halogen cables (known as LSZH, or Low-Smoke Zero-Halogen) are designed with sheathing that emits low smoke and low levels of toxic material in the event of a fire.

For a basic definition: a zero-halogen cable does not contain any of the elements (fluorine, chlorine, bromine, iodine and astatine) known collectively as "halogens." For some reasons why they are notable, we turn to Wikipedia , which offers two short bullet points:It also seems that zero-halogen cables (known as LSZH, or Low-Smoke Zero-Halogen) are designed with sheathing that emits low smoke and low levels of toxic material in the event of a fire.

This property also means that these cables are more easily disposed of, because they do not release harmful fumes into the environment.

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Electrical Cables and Connectors

When LSZH Cables Matter

Because the purpose of LSZH cables is generally to minimise risk from the after-effects of an electrical fire like gas and smoke inhalation, they are generally used in large public spaces where there is a risk of fire.

Because the purpose of LSZH cables is generally to minimise risk from the after-effects of an electrical fire like gas and smoke inhalation, they are generally used in large public spaces where there is a risk of fire.

After the King's Cross fire in , for example, LSZH sheathing became mandatory for all electrical wiring in London Underground stations.

They may also be found in electrical fittings where a fire may cause extra complications, such as in stairlifts for the elderly.

So where would we install this light fitting? Essentially in any largeish public area, where there might one day be a fire. We hope this has been helpful to you!

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