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Shanghai Yong he Sheng Material Technology Co., LTD

Photovoltaic cable material

Product name, item and use

Name Item Use
Irradiation cross-linked TUV photovoltaic cable material YHS70027T -125 Meets 2 Pfg1169, 2 Pfg990 standard requirements
Irradiation cross-linked EN photovoltaic cable material YHS70027EN-125 Comply with EN50618 standard, low smoke emission
Irradiation cross-linked TUV / UL dual certification photovoltaic cable compound YHS70027-125 Meets 2 Pfg1169, 2 Pfg990 and UL4703 standards

Product introduction

This kind of material is made of special polyolefin and heat-resistant elastomer as the base material, and it is added with flame retardant, smoke suppressant, cross-linking sensitizer, antioxidant and processing aid, etc., and mixed and plasticized into pellets. It not only has excellent physical and mechanical properties, electrical properties, flame retardant properties and processing performance, but also has good low temperature resistance, high temperature resistance, ozone resistance and solvent erosion resistance, and is suitable for various photovoltaic cable insulation and outer coating .

Extrusion process

When the storage environment is wet or the production surface is required to be high, the particles can be dried in a hot air hopper at 70 ℃ for 1-2 hours.

It is recommended to use a low compression ratio screw extrusion with a compression ratio of 1.2-2.0:1.Before extrusion, the screw should be cleaned to ensure the cleanliness of the product. It is recommended to use 80 mesh or 100 mesh filter screen to avoid impurities in the extrusion process, and to ensure the melt pressure to obtain a good appearance and material density.As the difference between the actual temperature of the melt and the indicated value of the temperature control table varies with the type of extruder, the user is requested to select the appropriate temperature according to the specific situation of the extruder used.The following temperatures can be used as reference for start-up and commissioning:

Position Cylinder I Cylinder Ⅱ Cylinder Ⅲ Cylinder Ⅳ Cylinder Ⅴ Head and mold
Temperature 130±5 155±5 160±5 165±5 170±5 180±5

Packaging and storage

kg / bag, inner aluminum plastic composite bag, outer kraft paper bag (or customer specified packaging)

Stored in dry and ventilated place

Prevent sun, rain and water

Storage period is 6 months

Product performance

Project Units TUV EN TUV/UL
YHS70027JTT YHS70027HT YHS70027JENE YHS70027HEN YHS70027J YHS70027HD
Density g/c 1.22 1.38 1.35 1.43 1.0 1.38
Tensile strength (after irradiation) Mpa 12.0 12.5 12.0 13.0 16.0 12.0
Elongation at break (after) % 260 220 360 240 360 220
Air heat ageing ℃ ×h 150×168 150×168 150×168 150×168 150×168 150×168
Change rate of tensile strength % +6 +5 +6 +5 +6 +10
Elongation at break rate % -17 -8 -6 -7 -8 -13
Thermal life test ℃ ×h 185×100 185×100 185×100 185×100 185×100 185×100
Elongation at break retention 75 75 75 75 75 75
Hot elongation test 250℃×15min×0.2MPa
Elongation under load % 35 30 40 40 40 35
Permanent % 1.5 1.0 0.5 1.0 0.5 1.0
High temperature pressure - 20 20 15 16 20 20
Low temperature embrittlement temperature ℃ -40 Pass -40 Pass -40 Pass -40 Pass -40 Pass -40 Pass
20℃volume resistivity Ω.cm 8.0×1014 2.0×1014 8.0×1014 2.5×1014 6.0×1014 2.0×1014
Dielectric strength MV/m 30 26 30 28 26 35
Oxygen % 28 35 32 38 26 35
Smoke density Flame method 70 80 65 70 62 80
Flameless method 165 180 150 160 165 180
Halogen acid gas content mg/g 0.2 0.2 0.1 0.1 0 0
PH value - 6.1 5.9 6.5 6.2 6.1 5.9
Conductivity μs/mm 0.5 0.5 0.5 0.5 0.5 0.5

Note: The above data is a typical value obtained by testing the product and is not a standard for testing restrictions.

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