Blank

No central strength member

S

Solid steel

Solid steel is used as an anti bucking element in the cable for providing very high tensile strength in outdoor cables where the cable has to be pulled or blown into ducts. The steel is hot rolled with anticorrosion treatment, Steel is chosen when extreme cold temperature performance is required since it exhibits good temperature stability.

SR

Stranded steel

Stranded steel is used as an anti bucking element for providing both fl exibility and high strength.

F

Fiber reinforced plastic(FRP)

FRP Rods combine the high performance properties of glass reinforcements with unique resin formulation to produce a strong and cost effective non-metallic cable strength member. The dielectric nature of glass fibers renders them immune to electromagnetic interference and lightning. In addition to being dielectric, FRP has high young modulus and exhibits high tensile strength and low weight. FRP is used when all dielectric construction is required.

A

Aramid yarn

High strength aramid yarn strength member ensures tension resistance and long term stability. Aramid yarn is a dielectric with high modulus and low specific weight. It is mostly employed as a central strength member for indoor tight buffered cables.

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No inner jacket

2Y

Polyethylene(PE)

PE is used mostly for outdoor applications. PE sheath acts as a moisture barrier as well as a protection to the core. PE will not crack or become brittle at low temperatures and will retain its mechanical properties and stability at high temperatures. PE is very resistant to water, chemical and solvents and thus used as sheath for outdoor installation. PE can be UV resistant if carbon black additive is added. It will exhibit extremely good aging properties and high UV and weather resistance.

Y

Polyvinyl Chloride(PVC)

PVC is mostly used mostly for indoor applications. It is most widely used because of its good mechanical and electrical properties combined with cheap cost. The PVC material may include special carbon black additives for being UV and weather resistant.

Yu

Fire retardant PVC(FRPVC)

Fire retardant PVC will not allow fi re to propagate along the cable when ignited. Fire retardant PVC jacketed cables will usually meet the fl ammability requirements of UL 1581(VW-1) and IEC 60332-1. With special design, the cables can meet IEC 60332-3A/C or UL 1666 (OFNR riser grade or UL 910 (OFNP plenum grade).

H

Low smoke and Halogen-free,(LSZH)

LSZH material is used mostly for indoor applications. When exposed to fi re it will retard fi re propagation while emitting non toxic corrosive halogen gases (halogen free as per IEC 60754-1 and IEC 60754-2) and low amounts of smoke emission as per IEC 61034-2. LSZH cables can usually meet the fl ammability requirement of UL 1581(VW-1) and IEC 60332-1. With special design, the cables can meet IEC 60332-3A/C.

G

Fiber Glass yarn

Fiber glass is a dielectric with high compressive strength high modulus and light weight. It is characterized by its great abrasion resistance. Fiber glass yarn is usually used in a form of thin fiber bundles or roving. Compared to aramid yarn, fi ber glass yarn is mucheasier to cut. Fiber glass yarn has similar impact resistance as steel.

A

Aramid yarn

Aramid yarn is a dielectric with high strength, high modulus and light weight. Aramid yarn is usually produced in its natural yellow color. Because of its toughness, aramid yarn is difficult to cut and requires a high quality scissor dedicated for cutting aramid. Aramid yarn is 5 times stronger than steel.

AG

Fiber Glass yarn + Aramid yarn

The weakest aspect of aramid yarn is its compressive strength and that is one of the strong points of fiberglass yarn. Putting the two together combines the tensile strength, toughness, and light weight of aramid yarn with the compressive strength and rigidity of fi berglass yarn.

FG

Fire Resisting Fiber Glass yarn

Fiber glass is characterized by its hazard proof and soft nature. Special fi ber glass yarn can be used as both a strength member and fi re barrier for meeting IEC 60331

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No armouring

T

Corrugated steel tape armour

Steel tape is corrugated to enhance the fl exibility of the cable. Steel tape armour is used to provide mechanical protection and rodent resistance. The steel tape armour is usually offered with either PE, PVC or LSZH inner jacket. It is not recommended to use PVC for outer jacket. Compared with steel wire armour, it has the advantage of lower cost, increased torsional stiffness and reduced cable diameter

J

Fiberglass armour

Flexible dielectric armour is made of a thick layer of fiber glass roving, It is a dielectric with high modulus and low weight glass. Fiberglass armour is used when there is a need for dielectric and high flexibility. Fiberglass armour is a fraction of weight of the steel wire armour for identical performance level.

W

Steel wire armour

Helical wrap of galvanized steel wire armour provides the best protection against rodent attack and mechanical damage, also offering high tensile strength and crush resistance.

TW

Corrugated steel tape armour+Steel wire armour

The double armour is designed for underwater application. The double armour wires provide the necessary tensile stiffness needed during installation to prevent excessive strain of the optical fi bers, mechanical protection from outside disturbances, as well as the structural strength needed for underwater cables as relatively long lengths of cable must be lifted to bring the cable to the water's surface for servicing. Without the strength provided by the double armour, the weight of the cable could break the optical fi bers at the point of lifting the cable.

B

Bronze armour

The braided bronze armour is used for increased mechanical protection for offshore and shipboard cables. With this design, the cable can pass IEC60332-3A. The bronze armour layer may also be used to assist in locating buried cables. This is accomplished by imparting a signal to the bronze armour and detecting the signal by suitable above-ground apparatus.