Datasheet - FO - Cable - Non-Armor FIGURE 8

Specification LGST 2004-201 FOR Optical Fiber Cable Loose Tube / Jelly Filled Core Single Jacket / Non-Armored [ Figure-8 Self-supporting Aerial Cable ]... OPTICAL FIBER The optical,

Specification

LGST 2004-201

FOR

Optical Fiber Cable Loose Tube / Jelly Filled Core Single Jacket / Non-Armored [ Figure-8 Self-supporting Aerial Cable ]

1 SCOPE

1.1 Application

This specification covers the general requirements for fiber optic telecommunication cables used for self-supported aerial applications

1.2 Cable Description

Color coded fibers, filled color coded loose tubes, PE filler, SZ-stranding around the dielectric central strength member, flooding jelly compound, core wrapping tape, ripcords, messenger wires and outer PE jacket

2 OPTICAL FIBER

The optical, geometrical and mechanical performance of the optical fiber shall be in accordance with Table 1 and 2 below

Table 1 The Optical, Geometrical and Mechanical Performance of the Multi Mode Fiber

SPECIFICATION ITEMS UNITS

50 Multi Mode 62.5 Multi Mode

≤ 1.0 at 1300nm ≤ 1.0 at 1300nm ≤ 3.5 at 850nm

≥ 600 at 1300nm ≥ 400 at 1300nm ≥ 200 at 850nm

Core/Cladding

* Other performance value available upon request

Table 2 The Optical and Geometrical Performance of Single Mode Fiber (ITU-T G652)

≤ 0.22 at 1550nm

≤ 0.05 at 1285nm & 1330nm (from the 1310nm value)

≤ 0.05 at 1525nm & 1575nm (from the 1550nm value)

≤ 18 at 1550 nm

Attenuation vs Bending

≤ 0.05 at 1550nm

≤ 0.10 at 1550nm

3 CABLE CONSTRUCTION

The construction of the cable shall be in accordance with Table 3 below

Table 3 Construction of the Cable

ITEMS DESCRIPTION

Filling Compound

(if necessary to make good core configuration)

Flooding Compound

(To provide heat barrier and good core configuration)

Messenger

Outer Jacket

4 FIBER AND LOOSE BUFFER TUBE IDENTIFICATION

The color code of the loose buffer tubes and the individual fibers within each loose buffer

tube shall be in accordance with Table 4 below

Table 4 The Color Code of the Individual Fibers and Loose Tubes

No Color No Color

1 Blue 7 Red

2 Orange 8 Black

3 Green 9 Yellow

4 Brown 10 Violet

5 Slate 11 Rose

6 White 12 Aqua

5 PHYSICAL / MECHANICAL / ENVIRONMENTAL

PERFORMANCE AND TESTS

5.1 Temperature Range

For the cables covered by this specification, the following temperature ranges apply:

- Storage/Shipping : -40 °C to +70°C

5.2 Typical Span, Sag and Tension

NESC loading condition, recommended span, sag and tension for Figure-8 type aerial

cable is described in Table 5 and 6 below

Table 5 Recommended Span, Sag and Tension

NESC Loading (Light) Fiber

Counts

Span (m) Normal Sag

(m )

Tension (kg) Max Sag

(m)

Max Tension (kg)

Table 6 Environmental Conditions in NESC

Loading Districts (NESC, Rule 250B) Items Unit

Light Medium Heavy

Temperature

Max Operation

°C

-1 -10 -20

5.3 Mechanical and Environmental Performance of the Cable

The mechanical and environmental performance of the cable shall be in accordance with

Table 7 below Unless otherwise specified, all attenuation measurements required in this

section shall be performed at 1550nm for single mode fiber (SM) and at 1300nm for multi

mode fiber (MM) and monitored before and after of each test items in Table 7

The messenger wire part may be removed from the cable sample for convenience in

testing, but for tensile strength test, it shall not be removed from the sample

Table 7 The Mechanical and Environmental Performance of the Cable

ACCEPTANCE CRITERIA

Compressive Loading

Resistance Test

# Test method: TIA/EIA-455-41A - Applied load: 110 N/cm - Duration of loading: 10 minutes

# Acceptance Criteria - Attenuation Increment: ≤ 0.10 dB (SM)

≤ 0.20 dB (MM) after completion of the test - No jacket cracking and fiber breakage

Repeated Impact Test

# Test method: TIA/EIA-455-25C - Height of impact: 150mm - Drop Mass: 3kg

- No of impact cycles: 2 cycles

# Acceptance Criteria - Attenuation Increment: ≤ 0.10 dB (SM)

≤ 0.20 dB (MM) after completion of the test - No jacket cracking and fiber breakage

Cyclic Flexing Test

# Test method: TIA/EIA-455-104A - Sheave diameter: 20D (D = cable diameter) - No of flexing cycles: 25 cycles

- Flexing speed: 30 cycles/minute

# Acceptance Criteria - Attenuation Increment: ≤ 0.10 dB (SM)

≤ 0.20 dB (MM) after completion of the test - No jacket cracking and fiber breakage

Cable Twist Test

# Test method: TIA/EIA-455-85A - Cable length twisted: 2m - No of twist cycles: 10 cycles - Twist angle: ±180°

# Acceptance Criteria - Attenuation Increment: ≤ 0.10 dB (SM)

≤ 0.20 dB (MM) after completion of the test - No jacket cracking and fiber breakage

Temperature Cycling Test

# Test method: TIA/EIA-455-3A - Temperature cycling schedule : 23°C→ -25°C→ 70°C→ -25°C→ 70°C→ 23°C - Soak time at each temperature: 8hours

# Acceptance Criteria - Attenuation increment: ≤ 0.15 dB/km (SM) ≤ 0.20 dB/km (MM)

Table 7 The Mechanical and Environmental Performance of the Cable (Continued)

ACCEPTANCE CRITERIA

Water Penetration Test

# Test method: TIA/EIA-455-82B - Length of specimen: 3m - Height of pressure head: 1m - Test time: 24 hours

# Acceptance Criteria - No leakage through the open cable end

6 PACKING AND MARKING

6.1 Cable Marking

The sheath shall be marked at intervals of one meter with following information

1) Purchaser name

2) Cable type and fiber counts (ex, "SJNA-F8 SM24C")

3) Name of the manufacturer

4) Year of manufacture

5) Length marking

Ex.1) For single mode 24-fiber cable

※ Other markings are also available

6.2 Cable Re-marking

The re-marking shall be marked, preferably with yellow characters, on the outer cable jacket Any cable that contains two sets of cable markings shall be marked to indicate the color of the marking to be used

6.3 Cable Packing

6.3.1 Standard length of cable shall be 4km Other cable length is also available if required by customer

6.3.2 Short lengths: up to 10% of the deliveries may be shorter than 4,000 meters but never shorter than 2,000 meters

6.3.3 Each length of the cable shall be wound on a separate wooden reel

6.3.4 Both ends of the cable shall be sealed with suitable plastic caps to prevent the entry of moisture during shipping, handling and storage

6.3.5 The cable ends shall be securely fastened to the reel to prevent the cable from becoming loose in transit or during placing operations

6.3.6 The inner end of the cable is housed into a slot on the side of the reel without extra cable length for testing

6.3.7 Circumference battens or wood-fiber board shall be secured with steel bands to protect the cable during normal handling and shipping

6.4 Cable Reel

6.4.1 Details given below shall be distinctly marked with a weather proof material on both outer sides of the reel flange:

(1) Purchaser’s name

(2) Cable type and number of fibers

(3) Length of cable in meters

(4) Gross weight in kilogram

(5) Reel number

(6) Year of manufacture

(7) Name of the manufacturer

(8) Arrow showing the direction the drum shall be rolled

Other shipping mark is also available if requested by customer

6.4.2 The cable shall be shipped on reels designed to prevent damage to the cable during shipment and installation

6.4.3 The arbor holes provided in the reels shall be at least 65 mm and at most 120 mm in diameter

< Cross-sectional Drawing of Cable >

1 36-Fiber Cable

y Optical Fibers

2 Diameter, Weight and Minimum Bending Radius

Min Bending Radius(mm)

No of

Fibers

Fiber No

in a Tube

Nominal Cable Diameter (mm x mm)

Approx

Cable Weight

*) Actual values for cable weight and diameter may deviate from the calculated values given

in the table above

== End of Specification ==