Underwater or Direct Buried GYTS33 Fiber Optical Cable

The structure of GYTS33 is positioned singlemode or Multimode Fibers into a loose tube made of a high modulus plastic filled with a water-resistance compound.In the center of the cable is a metal strengthen member.For some cores of the optical cable, the metal reinforcement member needs to be extruded with a layer of polyethylene (PE).Tubes and fillers are stranded around the strength member into a compact and circular cable core which is filled with the filling compound to protect it from water ingress.The PSP is longitudinally applied over the cable core to be extruded a PE inner jacket.After being armored with double row single fine round steel wire, the polyethylene outer sheath is finally extruded to form cable.

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Characteristics

1. Layer stranded direct buried, underwater optical cable, choose high quality optical fiber, ensure the cable has excellent transmission performance.

2. Precise control of fiber length, ensure that the cable has excellent mechanical and temperature properties.

3. Full section water resistance structure ensures good water resistance and moisture proof performance.

4. Special Jelly filled with the tube playing a key role in protecting the fibe

5. Corrosion resistant phosphating steel wire with high young’s modulus is used for the central strengthen member.

6. Longitudinal double-side coated corrugated steel tape armoring, double layer steel wire wrapped armoring, ensure the cable mechanical compression, bulletproof, meet the requirements of underwater laying.

7. Strict process, raw material control, ensure stable cable work for more than 30 years.

Features

Fiber Counts: 2-288 fibers

Fiber Type: G652D; G657A1; G657A2; G657B3; G655C; OM1; OM2; OM3; OM4; OM5
Inner/Outer jacket: PE
Remarkable mechanical and temperature properties are guaranteed by precise excess fibers
The key protection of fiber: hydrolysis resistance
Superb compression resistance and flexibility
PSP enhances the compression resistance, impact resistance, and moisture resistance of the cable
Steel wires ensure tensile strength

Application

Outdoor underwater

Direct buried

Transmission Performance

Fiber Type

9/125um G652D
(1310/1550nm)

9/125um G655C
(1550/1625nm)

62.5/125um OM1
(850/1300mm)

50/125um OM2-OM5
(850/1300mm)

Max. Attenuation

(dB/km)

0.36/0.22

0.22/0.26

3.5/1.5

Typical. Attenuation (dB/km)

0.35/0.21

0.21/0.24

3.5/1.5

3.0/1.0

Structure Parameters of Optical Cable

Fiber Count	Structure	Loose Tube	CSM	Water Blocking	Armor	Inner Jacket	Peripheral reinforcement	Outer Jacket	Diameter (mm)	Approx Weight (kg/km)
2-30	1+5	PBT	Steel Wire	Flooding Jelly Compound	Corrugated Steel Tape	PE	Steel Wires	PE	12.8	278
32-36	1+6								13.2	297
38-60	1+5								13.9	328
62-72	1+6								14.2	344
74-84	1+7								15. 1	373
86-96	1+8								15. 8	397
98-108	1+9								16. 6	447
110-120	1+10								17. 2	475
122-132	1+11								18. 3	568
134-144	1+12								18. 9	593
146-216	1+6+12								18. 4	513
218-288	1+9+15								20. 5	610

Mechanical & Environmental Performance

Item	Contents	Unit	Parameters
Max. Tensile Strength	Short term	N	10000
Max. Tensile Strength	Long term	N	4000
Max. Crush	Short term	N/100mm	5000
Max. Crush	Long term	N/100mm	3000
Min. Bending Radius	Operation	mm	12.5 times of cable diameter
Min. Bending Radius	Installation	mm	25 times of cable diameter
Applicable Temperature Range	Operation	℃	-40 ~ +70
	Installation	℃	-20 ~ +60
	Storage & Shipping	℃	-40 ~ +70