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Fiber Optic Cable

Short description:

PRODUCT DESCRIPTION

General introduction

This standard includes general optical and structural requirements for fiber optic cables containing 48 and 96 optical fibers produced by Recoin Joint Stock Company.
The optical fiber used is single mode - step refractive index and is made of high quality glass material according to recommendations ITU-T G.652.D and TCVN 8665: 2011.

WIRE SIGN

96FO metal-sheathed fiber optic cable, Symbol: CKL1 – LT8 – 96FO
Metal sheathed fiber optic cable 48FO, Symbol: CKL1 – LT4 – 48FO

1. Cable structure

Structure description:

Tên		Mô tả
Number of optical fibers		48FO/96FO
Number of optical fibers in 1 loose tube		12FO
Loose tube		Material: PBT (Polybutylene terephthalate)\nOuter diameter: ≥ 2.0 mm, always round
Liquid tube filling compound		Thixotrophic Jelly
Filler tube (if any)		PE plastic (or equivalent), no recycled plastic used, same size as loose tube, no defects
p1b1t6		Material: FRP (Fiberglass Reinforce with Palstic)\nDiameter: ≥ 2.0 mm
Waterproof ingredients		Water Blocking Yarn
		Waterproof tape and creates uniform roundness for cable cores (Water Blocking Tape)
Core braiding method		SZ reversible braid.
Made of Aramid fibers that are tightly bonded together to make it easy to distinguish from other components and ensure it is strong enough to strip the cable sheath.\nLocated under the corrugated steel tape.		"Cable Rip Cord (Ripcord Cord)"
Lớp bảo vệ cơ học		Băng thép nhăn, độ cao gợn sóng 0,5mm.
Độ dư sợi quang		Tối thiểu 1% so với chiều dài cáp ở khoảng nhiệt độ từ 20°C đến 30°C
Lớp vỏ ngoài		Vật liệu: Nhựa HDPE màu đen Độ dày: 2,0 mm ± 0,1mm

1. Cable cover and reinforcement

The outer shell is made from 100% new high-quality HDPE material, contains black carbon that can withstand the impact of ultraviolet rays, contains antioxidants, is not capable of growing mold on the shell and has electrical insulating properties. Do not use recycled plastic.

The cable cover protects the cable core from mechanical impacts and external environmental influences during storage, installation and exploitation (water, temperature, chemicals, rodents...).

The cable sheath is guaranteed to be smooth, concentric, without joints, cracks, or holes; Uniform quality (no: rough, porous, contains air bubbles, splits, has blisters, defects, lumps), does not contain metal components, is flexible, sturdy, peels easily , do not stick too tightly to the cable core to dent the loose buffer tube when separating the shell.

Able to withstand high voltage: Minimum 20 kVDC or 10kVACrms with frequency from 50Hz to 60Hz; There is no phenomenon of ignition or cable sheath puncture after 5 minutes of testing.

The corrugated steel tape ensures cable protection against mechanical impacts and is rodent-proof; Using low carbon steel electroplated with chrome with a thickness after corrugated stamping ≥ 0.15mm, and coated with ethylene arcylic copolymer on both sides, coating thickness ≥ 0.04mm. Corrugated steel tape wraps along the entire SZ braided cable core with the overlap of the steel tape being at least 3mm. The outer diameter of the steel tape overlapping part is equal to the outer diameter of the wavy part.

2. Specify the number and color of liquid tubes and the quantity of loose tubes and filler tubes

The fiber color code complies with TIA/EIA-598-A standard

The number, color of liquid tubes, and quantity of loose tubes and filler tubes comply with the provisions in the following table:

Loose tube	Cable core element (loose tube/filled tube)
	TT	1	2	3	4	5	6	7	8
		Blue	Orange	Green	Brown	Xám	White	Red	Black
	Number of optical fibers	48FO	12	12	12	12	Padded	Padded
	96FO	12	12	12	12	12	12	12

3. Specifications of optical fiber

Optical and geometrical characteristics of single-mode optical fiber according to ITU-T G.652.D recommendations, coated with UV Cured crylate layer that is resistant to ultraviolet rays and meets the following specifications:

TT	Target name	Standard	Measurement methods
1	Fiber Attenuation Coefficient (Attenuation Coefficent)	≤ 0,35 dB/km ≤ 0,36 dB/km ≤ 0,21 dB/km ≤ 0,22 dB/km	IEC 60793-1-40
2	Dispersion coefficient	≤ 3,5 ps/nm×km ≤ 18 ps/nm×km	IEC 60793-1-42
3	Polarization Mode Dispersion (PMD)		IEC 60793-1-48
4	Wavelength with zero dispersion (λmin – λmax)	1300nm ≤ λ0 ≤ 1324nm	IEC 60793-1-42
5	Zere dispersion slope at point 0\n(Zere dispersion slope – S0max)	≤ 0,092 ps/nm^2×km	IEC 60793-1-40
6	Cut–off wavelength λcc (Cut–off wavelength)	≤ 1260nm	IEC 60793-1-44
7	Loss when bending optical fiber at wavelength 1625nm (Marcro bending loss) with radius r = 30mm × 100 turns	≤ 0,1 dB	IEC 60793-1-47
8	Loss when bending optical fiber at wavelength 1625nm (Marcro bending loss) with radius r = 30mm × 100 turns	9,2µm ± 0,5µm	IEC 60793-1-45
9	Core concentricity error	≤ 0,6µm	IEC 60793-1-20
10	Cladding diameter	125µm ± 1,0µm	IEC 60793-1-20
11	Cladding noncircularity	≤ 1 %	IEC 60793-1-20
12	Primary coating diameter	245µm ± 10µm 250µm ± 10µm	IEC 60793-1-21
13	Point Discontinuity increases dramatically at wavelengths 1310nm and 1550nm (Point Discontinuity)	≤ 0,05dB	IEC 60793-1-40
14	Fiber tension	≥ 0,69Gpa (100kpsi)	IEC 60793-1-30
15	Fiber color code	Theo EIA/TIA-598
16	The primary shell uses a material that resists the effects of ultraviolet rays (acrylate), minimizing the impact of the external environment.
17	The primary shell before dyeing has a nominal diameter of 245µm ± 10µm, after dyeing it has a nominal diameter of 250µm ± 10µm using a durable ink over time. When applying, wipe off the gel around the fibers with 90° alcohol without discoloration
18	When welding is performed, the primary shell can be easily separated from the fiber without using chemicals and without affecting the fiber.

4. Physical, mechanical and environmental properties

Physical, mechanical and environmental tests (at wavelengths of 1310 and 1550nm):

TT	Target name	Test methods and standards
1	Ability to withstand tension	IEC 60794-1-2-E1	Fibers are not broken, cable sheath is not cracked.\nIncreased attenuation: ≤ 0.1 dB, elongation ≤ 0.25%
		Result	Fibers are not broken, cable sheath is not cracked.\nIncreased attenuation: ≤ 0.1 dB, elongation ≤ 0.25%
2	Compression resistance	IEC 60794-1-2-E3	Fibers are not broken, cable sheath is not cracked.\nIncreased loss: ≤ 0.1 dB\nCompression marks do not pose a danger to cable components.
		Result	Fibers are not broken, cable sheath is not cracked.\nIncreased loss: ≤ 0.1 dB\nCompression marks do not pose a danger to cable components.
5.3	shock resist ability	IEC 60794-1-2-E4	The fiber is not broken, the cable sheath is not cracked, and the steel band is not exposed.\nThe impact marks are considered normal.\nIncreased attenuation: ≤ 0.1 dB
		Result	The fiber is not broken, the cable sheath is not cracked, and the steel band is not exposed.\nThe impact marks are considered normal.\nIncreased attenuation: ≤ 0.1 dB
5.4	Ability to withstand bending	IEC 60794-1-2-E6 (hoặc E11)	The fiber is not broken, the cable cover is not cracked.\nIncreased loss: ≤ 0.1 dB.
		Result	The fiber is not broken, the cable cover is not cracked.\nIncreased loss: ≤ 0.1 dB.
5.5	Torsion resistance	IEC 60794-1-2-E7	The fiber is not broken, the cable cover is not cracked.\nIncreased loss: ≤ 0.1 dB;
		Result	The fiber is not broken, the cable cover is not cracked.\nIncreased loss: ≤ 0.1 dB;
5.6	Heat resistance	IEC 60794-1-2-F1	Attenuation gain: < 0.05 dB/km
		Result	Attenuation gain: < 0.05 dB/km
5.7	Test the flow of the filling compound	IEC 60794-1-2-E14	The filler in the test sample does not fall or the contents of the filler leak out < 0.05g.\nThe optical fibers in the loose tube stay in place and do not fall off.
		Result	The filler in the test sample does not fall or the contents of the filler leak out < 0.05g.\nThe optical fibers in the loose tube stay in place and do not fall off.
5.8	Waterproof ability	IEC 60794-1-2-F5	Water does not penetrate through the test sample
		Result	Water does not penetrate through the test sample
5.9	Ability to withstand discharge voltage	TCN 68-160:1998	The cable cover is not punctured
		Result	The cable cover is not punctured

5.Mechanical properties and cable installation environment

Physical, mechanical and environmental tests of the FTTx-LT-F8 subscriber line (at wavelengths of 1310nm, 1490nm and 1550nm).

TT	Targets	Test methods and standards
1	Ability to withstand tension	IEC 60794-1-2-E1	Fibers are not broken, cable sheath is not cracked.\nIncreased attenuation: ≤ 0.1 dB, elongation ≤ 0.25%
		Result	Fibers are not broken, cable sheath is not cracked.\nIncreased attenuation: ≤ 0.1 dB, elongation ≤ 0.25%
2	Compression resistance	IEC 60794-1-2-E3	Fibers are not broken, cable sheath is not cracked.\nIncreased loss: ≤ 0.1 dB\nCompression marks do not pose a danger to cable components.
		Result	Fibers are not broken, cable sheath is not cracked.\nIncreased loss: ≤ 0.1 dB\nCompression marks do not pose a danger to cable components.
5.3	shock resist ability	IEC 60794-1-2-E4	The fiber is not broken, the cable sheath is not cracked, and the steel band is not exposed.\nThe impact marks are considered normal.\nIncreased attenuation: ≤ 0.1 dB
		Result	The fiber is not broken, the cable sheath is not cracked, and the steel band is not exposed.\nThe impact marks are considered normal.\nIncreased attenuation: ≤ 0.1 dB
5.4	Ability to withstand bending	IEC 60794-1-2-E6 (hoặc E11)	The fiber is not broken, the cable jacket is not cracked.\nIncreased loss: ≤ 0.1 dB.
		Result	The fiber is not broken, the cable jacket is not cracked.\nIncreased loss: ≤ 0.1 dB.
5.5	Torsion resistance	IEC 60794-1-2-E7	The fiber is not broken, the cable cover is not cracked.\nIncreased loss: ≤ 0.1 dB;
		Result	The fiber is not broken, the cable cover is not cracked.\nIncreased loss: ≤ 0.1 dB;
5.6	Heat resistance	IEC 60794-1-2-F1	Attenuation gain: < 0.05 dB/km
		Result	Attenuation gain: < 0.05 dB/km
5.7	Test the flow of the filling compound	IEC 60794-1-2-E14	The filler in the test sample does not flow or fall out or the contents of the filler leak out < 0.05g.\nThe optical fibers in the loose tube stay in place and do not fall.
		Result	The filler in the test sample does not flow or fall out or the contents of the filler leak out < 0.05g.\nThe optical fibers in the loose tube stay in place and do not fall.
5.8	The filler in the test sample does not flow or fall out or the contents of the filler leak out < 0.05g.\nThe optical fibers in the loose tube stay in place and do not fall.	IEC 60794-1-2-F5	Water does not penetrate through the test sample
		Result	Water does not penetrate through the test sample
5.9	Ability to withstand discharge voltage	TCN 68-160:1998	The cable cover is not punctured
		Result	The cable cover is not punctured

6. Physical, electromechanical and environmental characteristics of subscriber wires

TT	Specifications	Targets
1	Maximum allowable load during installation	2.700N
2	Maximum allowable load when working	900N
3	Temperature range when installed	-5^oC ~ +65^oC
4	Working temperature range	-10^oC ~ +65^oC
5	Minimum bend radius when installed	10 times the cable diameter
6	Minimum bend radius after installation	20 times the cable diameter

7. Tensile force of subscriber wire

The maximum allowable pulling force during construction of the subscriber line (in a short time) is at least 500N

The allowable tension during use is greater than 30% of the maximum tension during construction.

8. Clearance and deflection

With a passing distance of ≤ 50m with a deflection of 1%.

10. Pack

Average length of subscriber line: 3000m

Subscriber wire is wrapped in a wooden cable drum (with a length of 3000m)

After completing the test measurements, the two ends of the coil are covered to make it waterproof

The cable drum surface is recorded with the following information

Manufacturer name: RECOIN

Cable type: FTTx-LT-F8 subscriber line

Number of optical fibers: 1F0/2F0/4F0

Customer name: VNPT

Cable length: 3000m

Date of manufacture: .............

Test day: ..............

Cable weight: ............kg

Weight of bobbin: ...........kg

The arrow points out the entire wire

KCS inspection mark when leaving the factory

11. Other features

The subscription wire cover ensures solid protection of the wire core (heart tube) and twisted steel wire hanging in exploitation installations

When stripping/tearing apart the hanging wire, the steel core of the hanging wire or wire core should not be exposed.

Wire life >= 10 year

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