Main technical indexes No. Item Unit Technical requirements 1 Surface quality / Smooth surface, well-distributed color and luster, without impurity and bleb 2 Outer diameter mm 3.1×3.7 3 Jacket thickness mm 0.99≈1.0 4 Jacket minimum thickness mm 0.76 5 Insulation thickness mm 0.28 6 Conductor electric calcar at 20℃ Ω/Km ≤92.3 7 Insulation resistance Ω·Km ≥60 8 Voltage test K 0.5KV/3min non puncture 9 Circuit test / Complete circuit

Polyolefine insulated, Polyvinyl Chloride(PVC) jacket twin copper core jacket line specifiction：HPV2×1/0.5

Main technical indexes No. Item Unit Technical requirements 1 Surface quality / Smooth surface, well-distributed color and luster, without impurity and bleb 2 Jacket thickness mm 0.72≈.07 3 Outer diameter mm 4.07≈4.1 4 Insulation thickness mm ≥0.3 6 Conductor electric calcar at 20℃ Ω/Km ≤92.3 7 Insulation resistance Ω·Km ≥60 8 Voltage test K 0.5KV/3min non puncture 9 Circuit test / Complete circuit

Polyolefine insulated, Polyvinyl Chloride(PVC) jacket Four core indoor line Specification：HBYV2×2/0.5

Main technical indexes No. Item Unit Technical requirements 1 Surface quality / Smooth surface, well-distributed color and luster, without impurity and bleb 2 Jacket thickness mm ≥6.0 3 Insulation thickness mm ≥4.0 4 Conductor electric calcar at 20℃ Ω/Km ≤69.2 5 Lopsided resistance % ≤4.5 6 Reversion test / 200mm long, reversing 360°≥27 times 7 Rupture load test N ≥400 8 Insulation resistance MΩ ≥10 9 Voltage test KV -500V,lasting 3min,non puncture

Polyvinyl Chloride (PVC) insulted, indoor soft line Specification：HBGVV2×1.6/0.5

Main technical indexes No. Item Unit Technical requirements 1 The diameter of steel core wrapped with copper mm 1.0 +0.02 -0.01 2 Copper-plating layer thickness mm 0.04 +0.03 -0.01 3 Steel core wrapped with copper line rupture load N ≥384 4 Conductor electric calcar at 20℃ Ω/km ≤107 5 Conductor DC lopsided resistance % ≤4.5 6 Working capacitance hf/km 43±2 7 Medi-electricity strength kv 1KV/1min non puncture 8 Insulation resistance MΩ/km ≥1000 9 Insulation thickness mm ≥0.6 10 Insulated layer eccentricity mm ≤0.05 11 Insulated layer ultimate stretch rate % ≥300 12 Jacket thickness mm 0.7±0.05 13 Jacket tensile strength (middle value) MPa ≥12.5

□ The guide for placing oders

Name	Model	Specification
Steel core phone line	HBGVV	2×1/1.2
4 core indoor line	H B Y V	2×2/0.5
Indoor soft line	HRVV	2×16/0.15
Twin jacket copper core line	H P V	2×1/0.5
Steel core wrapped with copper line user lead	HBGTYV	2×1/1.0-20