Loose Tube Stranded Non-Armored Flame Retardant Optical Cable (GYTZA)

GYTZA cable is constructed by placing 250µm fibers into loose tubes made of high-modulus material; the loose tubes are filled with water-blocking compound. The center of the cable core is a metallic central strength member; for certain fiber counts, a layer of polyethylene (PE) is extruded over the central strength member. The loose tubes (and filler rods) are stranded around the central strength member to form a compact, round cable core, and the gaps in the core are filled with water-blocking filler. Coated aluminum tape (APL) is longitudinally wrapped, and a flame-retardant jacket is extruded to form the cable.
Product Standards
  • YOFC GYZTA cables comply with YD/T 1114 standard.
Product Features

•  Excellent mechanical performance and temperature characteristics

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

•  The tubes are filled with special jelly compound, providing critical protection for the fibers

•  A specially designed compact cable structure effectively prevents tube retraction

•  Good crush resistance and flexibility

•  The special jacket offers excellent flame retardancy

•  The following measures are taken to ensure the water-blocking performance of the cable:

- Single steel wire central strength member

- Special water-blocking compound is filled into the loose tubes

- Fully filled cable core

- Coated aluminum tape (APL) moisture barrier

Structural Parameters

Cable Model

(in 2fiber increments)

Number of Fibers

Number of Tubes

Number of Filler Rods

Reference Cable Weight
(kg/km)

Allowable Tensile Force

Long-term/Short-term
(N)

Allowable Crush Force

Long-term/Short-term
(N/100mm)

Bending Radius

Static/Dynamic
(mm)

GYTZA-2~6Xn

2~6

1

4

101

600/1500

300/1000

10D/20D

GYTZA-8~12Xn

8~12

2

3

101

GYTZA-14~18Xn

14~18

3

2

101

GYTZA-20~24Xn

20~24

4

1

101

GYTZA-26~30Xn

26~30

5

0

101

GYTZA-32~36Xn

32~36

6

0

111

GYTZA-38~48Xn

38~48

4

1

117

GYTZA-50~60Xn

50~60

5

0

117

GYTZA-62~72Xn

62~72

6

0

144

GYTZA-74~84Xn

74~84

7

1

171

GYTZA-86~96Xn

86~96

8

0

171

GYTZA-98~108Xn

98~108

9

1

198

GYTZA-110~120Xn

110~120

10

0

198

GYTZA-122~132Xn

122~132

11

1

229

GYTZA-134~144Xn

134~144

12

0

229

GYTZA-146~216Xn

146~216

13~18

5~0

229

Storage and operating temperature: -40℃ to +70℃. 

Optical Characteristics

Fiber Type

Attenuation

(+20℃)

Bandwidth

Numerical Aperture

Cable Cutoff Wavelength

@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

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Application: duct, aerial

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