Quick Answer: What Does LSF Cable Stand For?

What is the difference between LSF and LSZH?

LSF cable will emit toxic gases while LSZH will limit the emission of these (typically under 0.5% hydrogen chloride emission).

In addition to being toxic, hydrogen chloride is corrosive to equipment.

The use of LSZH cables protects both people and limits the amount of equipment damage during a fire situation..

Is LSF cable fire rated?

Both LSZH and LSF are used to limit smoke, fumes and halogen given off in fire conditions. … Compared with normal PVC cables and LSF, zero halogen cables have better fire retardant properties, low toxic and corrosive gas emissions and low smoke emission.

What does Lsoh cable mean?

low smoke free of halogenLow smoke zero halogen or low smoke free of halogen (LSZH or LSOH or LS0H or LSFH or OHLS or ZHFR) is a material classification typically used for cable jacketing in the wire and cable industry.

Is XLPE a Lszh?

It also includes low smoke zero halogen single core XLPE/LSZH/AWA/LSZH and multicore XLPE/LSZH/SWA/LSZH with the same voltage ratings….XLPE/LSZH/SWA/LSZH BS6724 cable construction.British Standard BS5467InsulationCross-linked polyethylene (XLPE)BeddingLSZHArmourSWASheathLSZH2 more rows

What is LSZH jacket?

LSZH—Short for low smoke zero halogen, LSZH is a kind of cable built with a jacket material free from halogenic materials (such as chlorine and fluorine), since the toxic nature of these chemicals when burned. The term “low-smoke, zero-halogen” describes two distinct properties of a cable compound.

What’s the difference between XLPE and PVC SWA?

This is because PVC has a maximum working temperature of 70°C which is exactly what is needed for standing building cables, whilst XLPE has a maximum working temperature of 90°C. … Cables that are insulated with XLPE can run a higher current in the conductors.

Is XLPE low smoke?

Low smoke zero halogen (hereafter referred to as LSZH but also called LSOH, LS0H, LSFH or OHLS) is a material classification that is common to cable and wire casings. … There are several similar classifications such as low smoke and fume (LSF) and low smoke varieties of PVC and cross-linked polyethylene (XLPE).

Is PVC a Lszh?

A PVC cable (made of polyvinyl chloride) has a jacket that gives off heavy black smoke, hydrochloric acid, and other toxic gases when it burns. Low Smoke Zero Halogen (LSZH) cable has a flame-resistant jacket that doesn’t emit toxic fumes even if it burns.

What is XLPE cable?

Cross-linked polyethylene is widely used as electrical insulation in power cables of all voltage ranges but it is especially well suited to medium voltage applications. It is the most common polymeric insulation material. The acronym XLPE is commonly used to denote cross-linked polyethylene insulation.

Do you have to use LSF cable?

The use of LSOH cables is not a requirement of BS 7671 in domestic or Non-domestic buildings at present. The use of these cables is often subject to specification requirements rather than regulation. Regulations, however, may soon require such cables when installed in escape routes in certain buildings.

Is PVC cable flame retardant?

A PVC cable (made of polyvinyl chloride) has a jacket that gives off heavy black smoke, hydrochloric acid, and other toxic gases when it burns. Low Smoke Zero Halogen (LSZH) cable has a flame-resistant jacket that doesn’t emit toxic fumes even if it burns.

What is LSF cable?

LSF cables, in the case of data, signal and control cables, are made from a modified version of PVC and can still give off large amounts of black smoke and hydrogen chloride gas when burned. … LSHF cables are those that, when exposed to fire, emit no more than 0.5% hydrogen chloride.

What type of cable is fire grade?

The definition of a fire-resistive or fire-rated cable is a cable that will continue to operate in the presence of a fire. This is commonly known as a circuit integrity (CI) cable and is 2-hour fire-rated. Mineral Insulated (MI) cable has provided this added protection for decades.

Is PVC cable fire resistant?

LSOH and PVC cables are for non-essential services that do not need to operate in a fire. … These circuits are not essential for the safety of the public; they can fail in a fire with no increase in danger so they do not need to be fire resistant.

Is LSF cable thermoplastic or thermosetting?

A LSF (low smoke and fume) type of thermosetting cable is available. Provided that it is kept dry, a mineral insulation such as magnesium oxide is an excellent insulator.