Fixed Installation Sheathing (ST2)

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Fixed Installation Sheathing (ST2)

ST2 fixed installation sheathing granule (with heat resistance up to 90 ° C) is the raw material for the production of the last polymer layer which is placed on the outer surface of the cable. This layer is also known as ST2 sheath in the wire and cable industry and its characteristics should be within the IEC 60502 standard range.

The main differences between ST1 and ST2 are in color and thermal stability. The ST2 sheath is usually red and is used for medium and high voltage cables.

 

Product Name Fixed Installation Sheathing Granules
Other Names PVC granules for sheathing (ST2)
Product Code GERNT2-N (Natural)
Application Sheathing for medium to high voltage cables
Features
  • Production based on Global Standards
  • Production based on customer requested mechanical properties
Color Natural, Milky

Production capability in diverse colors according to customer request.

Packaging In 25 kg bags of transparent polyethylene and finally bags are packed on wooden pallets. The weight of the pallets is approximately 1250 kg. The package can be changed according to customer request.

Technical Data sheet

Product Code: GERNT2-N

Application: Wire & Cable – Fixed Installation Sheathing

Color: Milky (Colorless/Natural)

Form: Granule

Packaging: 25 KG PE Bag / Palletized

Storage: Dry place, away from sun shine and temperature lower than 30°C

Properties Test Method Units Typical Value
Type BS 6746 ST2
Tensile strength ASTM-D638 N/mm² 13±0.5
Elongation at break ASTM-D638 % 215±10
Gravity ASTM-D1895 G/CM^3 1.49±0.03
Hardness ASTM-D2240 Shore A 80±2
Thermal stability at 200°C ASTM-D749 MIN 91
Operating Temperature °C 90
Properties after aging 7 days at 100°C
Tensile strength ASTM-D638 N/mm² 12±0.5
Elongation at break ASTM-D638 % 195±10

Processing Conditions:

The following temperature profile is recommended as a guide line.

Barrel Temperature: (±10 °C)
Zone 1 Zone 2 Zone 3 Zone 4
165 165 175 185


These data, which are based on test results of major sample lots, are believed to be reliable. However, due to variation in ways of handling by consumers, recommendations are made without guarantee. These data are to be served only as a guide. The user must, by test or otherwise, determine suitability for this purpose. Our standard term and conditions of sale apply exclusively to all orders. No one is authorized by us to make oral warranties. We reserve the right to make changes without notice or obligation in our products and publications.

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