GDVV 2G.657A2 (Bow-type) +2×1.5mm^2 Optical hybrid cable specification
GDVV 2G.657A2 (Bow-type) +2×1.5mm^2 Optical hybrid cable specification
Hybrid FO Cable

GDVV 2G.657A2 (Bow-type) +2×1.5mm^2 Optical hybrid cable specification

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Description

1cross section

2 Cable structure and size

Table 1 Cable structure and size

ItemUnitValue
   FTTH drop cableFiber/G657.a2 red
Strength member/Steel with glue
Strength member size (steel wire/glue coating)mm0.43/0.48 (±0.02)
Drop cable sizemm2.1(±0.1)*1.6(±0.1)
Drop cable sheath/LSZH    Blue, yellow
   Power cableConductor structure/30/0.25±0.01mm
  InsulationMaterial/PVC （red,blue）
Nominal thicknessmm0.70
Minimum thicknessmm0.53
Insulation outer diametermm3.1±0.3
  Outer sheathMaterial/PVC    Black
Nominal thickness of sheathmm1.0
Minimum thickness of sheathmm0.8
Finished outer diametermm9.0±0.3
reference weightkg/km118

3     Performance requirements of optical and electrical hybrid cables

Table 2.Transmission requirements

ItemDetailsRequirements
Attenuation coefficientMaximum value at 1310nm0.4 dB/km
 Maximum value at 1550nm0.3 dB/km
Cutoff wavelength≤1260nm

Table 3.Electrical requirements

Rated voltageV300/500
Minimum bending radiusmm90
Pressure test2.0kV AC,5minNo breakdown

Table 4. Temperature requirements and others

Operating temperature-40℃~90℃
Minimum installation temperature-20℃
Storage and transportation temperature-40℃~60℃
Application scenarioIndoor&Outdoor
Design life≥15 years
GuidelineIEC 60794,IEC 60332-1, IEC 60332-3

4 Mechanical & Environmental Requirements for drop cables

NoItemTest SpecificationTest MethodSpecification
1Tensile strength TestIEC 60794-1-2-E1Sample length: No less than 50 metersLoad: 0.5*Cable weightDuration time:1 minuteFiber strain:≤0.4%Additional attenuation:≤0.15dB No damage to cable elements
2Crush TestIEC 60794-1-2-E3Load: 450 N/10cmDuration time: 1 minuteTest number: 3Additional attenuation:≤0.05dB after testNo damage to cable elements
3Impact TestIEC 60794-1-2-E4Impact energy: 1JRadius: 300mmImpact points: 3Impact number: 1Additional attenuation:≤0.05dB after testNo damage to cable elements
4Repeated BendingIEC 60794-1-2-E6Bending radius: 20 X diameter of cableCycles:25 cyclesAdditional attenuation:≤0.05dB after testNo damage to cable elements
5Torsion/Twist TestIEC 60794-1-2-E7Sample length: 1mAngles: ±180 degreeCycles: 5Additional attenuation:≤0.05dB after testNo damage to cable elements
6Bending TestIEC60794-1-2-E11BMandrel diameter: 20 X diameter of cableTurn number: 4Number ofcycles: 3 cyclesAdditional attenuation:≤0.05dB After testNo damage to outer jacket and inner elements
7Waterpenetration TestIEC 60794-1-2-F5Height of water column 1m Sample length 3mTest time 24 hoursNo water leakage from the opposite of the sample
8Temperature cycling TestIEC 60794-1-2-F1Temperature step: +20°C ^-20°C ^+70°C^+20°CTime per each step: 12 hoursCycles: 2Attenuation variation for referencevalue (the attenuation to bemeasured before test at +20±3°C) ≤0.15dB/km（1550nm）No damage to outer jacket and inner elements
NoItemTest SpecificationTest MethodSpecification
1Tensile strength TestIEC 60794-1-2-E1Sample length: No less than 50 metersLoad: 0.5*Cable weightDuration time:1 minuteFiber strain:≤0.4%Additional attenuation:≤0.15dB No damage to cable elements
2Crush TestIEC 60794-1-2-E3Load: 450 N/10cmDuration time: 1 minuteTest number: 3Additional attenuation:≤0.05dB after testNo damage to cable elements
3Impact TestIEC 60794-1-2-E4Impact energy: 1JRadius: 300mmImpact points: 3Impact number: 1Additional attenuation:≤0.05dB after testNo damage to cable elements
4Repeated BendingIEC 60794-1-2-E6Bending radius: 20 X diameter of cableCycles:25 cyclesAdditional attenuation:≤0.05dB after testNo damage to cable elements
5Torsion/Twist TestIEC 60794-1-2-E7Sample length: 1mAngles: ±180 degreeCycles: 5Additional attenuation:≤0.05dB after testNo damage to cable elements
6Bending TestIEC60794-1-2-E11BMandrel diameter: 20 X diameter of cableTurn number: 4Number ofcycles: 3 cyclesAdditional attenuation:≤0.05dB After testNo damage to outer jacket and inner elements
7Waterpenetration TestIEC 60794-1-2-F5Height of water column 1m Sample length 3mTest time 24 hoursNo water leakage from the opposite of the sample
8Temperature cycling TestIEC 60794-1-2-F1Temperature step: +20°C ^-20°C ^+70°C^+20°CTime per each step: 12 hoursCycles: 2Attenuation variation for referencevalue (the attenuation to bemeasured before test at +20±3°C) ≤0.15dB/km（1550nm）No damage to outer jacket and inner elements
NoItemTest SpecificationTest MethodSpecification
1Tensile strength TestIEC 60794-1-2-E1Sample length: No less than 50 metersLoad: 0.5*Cable weightDuration time:1 minuteFiber strain:≤0.4%Additional attenuation:≤0.15dB No damage to cable elements
2Crush TestIEC 60794-1-2-E3Load: 450 N/10cmDuration time: 1 minuteTest number: 3Additional attenuation:≤0.05dB after testNo damage to cable elements
3Impact TestIEC 60794-1-2-E4Impact energy: 1JRadius: 300mmImpact points: 3Impact number: 1Additional attenuation:≤0.05dB after testNo damage to cable elements
4Repeated BendingIEC 60794-1-2-E6Bending radius: 20 X diameter of cableCycles:25 cyclesAdditional attenuation:≤0.05dB after testNo damage to cable elements
5Torsion/Twist TestIEC 60794-1-2-E7Sample length: 1mAngles: ±180 degreeCycles: 5Additional attenuation:≤0.05dB after testNo damage to cable elements
6Bending TestIEC60794-1-2-E11BMandrel diameter: 20 X diameter of cableTurn number: 4Number ofcycles: 3 cyclesAdditional attenuation:≤0.05dB After testNo damage to outer jacket and inner elements
7Waterpenetration TestIEC 60794-1-2-F5Height of water column 1m Sample length 3mTest time 24 hoursNo water leakage from the opposite of the sample
8Temperature cycling TestIEC 60794-1-2-F1Temperature step: +20°C ^-20°C ^+70°C^+20°CTime per each step: 12 hoursCycles: 2Attenuation variation for referencevalue (the attenuation to bemeasured before test at +20±3°C) ≤0.15dB/km（1550nm）No damage to outer jacket and inner elements
NoItemTest SpecificationTest MethodSpecification
1Tensile strength TestIEC 60794-1-2-E1Sample length: No less than 50 metersLoad: 0.5*Cable weightDuration time:1 minuteFiber strain:≤0.4%Additional attenuation:≤0.15dB No damage to cable elements
2Crush TestIEC 60794-1-2-E3Load: 450 N/10cmDuration time: 1 minuteTest number: 3Additional attenuation:≤0.05dB after testNo damage to cable elements
3Impact TestIEC 60794-1-2-E4Impact energy: 1JRadius: 300mmImpact points: 3Impact number: 1Additional attenuation:≤0.05dB after testNo damage to cable elements
4Repeated BendingIEC 60794-1-2-E6Bending radius: 20 X diameter of cableCycles:25 cyclesAdditional attenuation:≤0.05dB after testNo damage to cable elements
5Torsion/Twist TestIEC 60794-1-2-E7Sample length: 1mAngles: ±180 degreeCycles: 5Additional attenuation:≤0.05dB after testNo damage to cable elements
6Bending TestIEC60794-1-2-E11BMandrel diameter: 20 X diameter of cableTurn number: 4Number ofcycles: 3 cyclesAdditional attenuation:≤0.05dB After testNo damage to outer jacket and inner elements
7Waterpenetration TestIEC 60794-1-2-F5Height of water column 1m Sample length 3mTest time 24 hoursNo water leakage from the opposite of the sample
8Temperature cycling TestIEC 60794-1-2-F1Temperature step: +20°C ^-20°C ^+70°C^+20°CTime per each step: 12 hoursCycles: 2Attenuation variation for referencevalue (the attenuation to bemeasured before test at +20±3°C) ≤0.15dB/km（1550nm）No damage to outer jacket and inner elements

5 Flame retardant requirements

ItemUnitTechnical Requirements
Cable flame test–IEC 60332-1, IEC 60332-3-24

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