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Stranded Loose Tube Non-metallic Strength Member Armored Fiber Optic Cable

This fiber optic cable has a stranded loose-tube design. A 250μm fiber is placed inside a loose tube made of high-modulus material, which is filled with waterproof gel. The center of the cable has a non-metallic (FRP) strength member. For some cables, this core is covered with a layer of polyethylene (PE).
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  • Stranded Loose Tube Non-metallic Strength Member Armored Fiber Optic Cable

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Outdoor Duct Cables‌ are engineered for underground conduit installations, shielding cables from environmental factors to ensure stable, reliable optical signal transmission. Their rugged jackets and armor resist compression, impact, soil corrosion, moisture, and animal damage. Installed quickly through conduits, they minimize excavation and simplify future maintenance. Ideal for long-haul communication, metro networks, and challenging crossings (rivers, highways, railways), they connect nodes and data centers with high-speed, high-capacity links.

‌Outdoor Aerial Cables‌ are designed for overhead suspension between poles or towers, ensuring durability in harsh weather. Reinforced with aramid or steel wires, they withstand wind and weight, while UV-resistant, weatherproof jackets extend lifespan. Their simple installation on existing infrastructure reduces ground disruption and maintenance costs. Widely used for intercity/regional connectivity and specialized networks (power, transport, energy), they enable real-time data transmission between nodes and devices.

‌Product Description‌
The loose tubes (along with filling ropes) are helically twisted around the central reinforcement core to create a compact, circular cable core. Any gaps within the core are filled with water-blocking materials. A plastic-coated aluminum tape (APL) is then longitudinally wrapped around the core, followed by extrusion of a polyethylene inner sheath. Next, a double-sided plastic-coated steel tape (PSP) is longitudinally applied, and finally, a polyethylene outer sheath is extruded to complete the cable assembly.

‌Key Features‌

  • ‌Robust Performance:‌ Excellent mechanical strength and temperature stability

  • ‌Durable Loose Tubes:‌ Constructed with high-strength, hydrolysis-resistant material

  • ‌Advanced Fiber Protection:‌ Specialized filling compound ensures critical safeguarding of optical fibers

  • ‌Flexible Design:‌ Offers crush resistance and installation flexibility

  • ‌Comprehensive Waterproofing:‌ Achieved through multiple protective layers:

    • Single Fiber Reinforced Plastic (FRP) central strength member

    • Loose tube filling compound

    • 100% core filling with water-blocking materials

    • APL moisture barrier

    • PSP enhanced moisture protection

‌Compliance‌
The GYFTA53 cable meets the requirements of ‌YD/T 901‌ and ‌IEC 60794-1‌ standards.

Structure Drawing

1.Fibre

2.Tube Filling Compound

3.Loose Tube

4.Cabling Filling Compound

5.APL

6.PE inner Sheath

7.Water-blocking Material

8.PSP

9.FRP Strength Member

10.PE Outer Sheath

Stranded Loose Tube Non-metallic Strength Member Armored Fiber Optic Cable

Technical Parameters

Cable Type

(Increased by 2 fibres)

Fibre Count

Tubes

Fillers

Cable Weight (Ref)

(kg/km)

Tensile Strength

Long/Short Term

(N)

Crush Resistance

Long/Short Term

(N/100mm)

Bending Radius

Static/Dynamic

(mm)

GYFTA53-2~6Xn

2~6

1

7

228

1000/3000

1000/3000

12.5D/25D

GYFTA53-8~12Xn

8~12

2

6

228

GYFTA53-14~18Xn

14~18

3

5

228

GYFTA53-20~24Xn

20~24

4

4

228

GYFTA53-26~30Xn

26~30

5

3

228

GYFTA53-32~36Xn

32~36

6

2

228

GYFTA53-38~42Xn

38~42

7

1

228

GYFTA53-44~48Xn

44~48

8

0

228

GYFTA53-50~60Xn

50~60

5

3

240

GYFTA53-62~72Xn

62~72

6

2

240

GYFTA53-74~84Xn

74~84

7

1

240

GYFTA53-86~96Xn

86~96

8

0

240

GYFTA53-98~108Xn

98~108

9

1

276

GYFTA53-110~120Xn

110~120

10

0

276

GYFTA53-122~132Xn

122~132

11

1

326

GYFTA53-134~144Xn

134~144

12

0

326


Storage/Operating Temperature: -40℃-+70℃


Optical Characteristics

Fibre Type

Attenuation (+20℃)

Bandwidth

Numerical Aperture

Cable Cut-off Wavelength λcc

@850nm

@1300nm

@1310nm

@1550nm

@850nm

@1300nm

G.652

---

---

≤0.36dB/km

≤0.22dB/km

---

---

---

≤1260nm

G.655

---

---

≤0.40dB/km

≤0.23dB/km

---

---

---

≤1450nm

50/125µm

≤3.3dB/km

≤1.2dB/km

---

---

≥500MHz·km

≥500MHz·km

0.200±0.015 NA

---

62.5/125µm

≤3.5dB/km

≤1.2dB/km

---

---

≥200MHz·km

≥500MHz·km

0.275±0.015 NA

---


Note:

a. Suffix Xn denotes fibre type

b. The colour arrangements of fibre and tube are specified in the colour identification table

c. The cable shouldn't store in outdoor environment more than 6 months in order to keep the cable reel good state


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