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Loose Tube Stranded Armoured Optic Cable-GYTA


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GYTA fibre optic cables are constructed with 250µm fibre optic fibres in a high modulus material pine tube, which is filled with a waterproof compound. At the centre of the core is a metal reinforcement core, which for some cores is also extruded with a layer of polyethylene (PE). The loose sleeving (and filler rope) is twisted around the central reinforcement to form a compact and rounded core with gaps filled with a water-blocking filler. Plastic coated aluminium tape (APL) wrapped longitudinally and then extruded with a polyethylene sheath.

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Product Description

Product characteristics:

• Very good mechanical properties and temperature characteristics

• The loose tube material itself has good hydrolysis resistance and high strength

• The tube is filled with a special oil paste, which provides critical protection for the optical fibres

• Specially designed compact cable construction prevents retraction of the casing

• PE jacket with high resistance to UV radiation

• The following measures are used to ensure that the cable is watertight:

- Single steel wire central reinforcement core

- Special waterproofing compounds in the loose sleeves

- Complete core filling

- Plastic coated aluminium tape (APL) moisture barrier

Product applications and laying methods：

1. Outdoor communication system wiring

2. Duct and overhead

Cable Mechanical characteristic

Fiber Number	Cable Outer Dia (mm)	Cable Weight (kg/km)	Minimum Bending radius(mm)		Maximun Allowable Tensile Strength(N)		Minimum Allowable Crush Load(N/100m)
Fiber Number	Cable Outer Dia (mm)	Cable Weight (kg/km)	Static	Dynamic	Short	Long Term	Short	Long Term
2~20F	9.3	80	101	202	1500	600	1000	300
22～30F	10.2	104	104	208	1500	600	1000	300
32～36F	10.9	110	111	222	3000	600	1000	300
38～72F	12.6	145	126	252	3000	600	1000	300
74～96F	14.2	189	143	286	3000	600	1000	300
98～120F	15.8	227	159	318	3000	600	1000	300
122～144F	17.6	273	177	354	3000	600	1000	300
146～216F	17.9	281	179	358	3000	600	1000	300