PVC sheath material for wire and cable is a PVC-based pellet material which is produced by mixing and granulating with accessory ingredients such as plasticizers, fillers, stabilizers, lubricants and colorants.
1. Model, Name and Application of Products
|
Model |
Name |
Application |
|
H-70 |
70 ℃ sheath-level flexible PVC plastic |
Sheath of wire and cable with rated voltages up to and including 450/750V Sheath of wire and cable with rated voltages up to and including 26/35 V |
|
HR-70 |
70℃ sheath-level flexible PVC plastic |
Flexible sheath of wire and cable with rated voltages up to and including 450/750V |
|
HⅠ-90 |
90℃Ⅰtype sheath-level flexible PVC plastic |
Sheath of wire, cable and other similar cables with rated voltages up to and including 35kV |
|
HⅡ-90 |
90℃Ⅱtype sheath-level flexible PVC plastic |
Sheath of wire and cable with rated voltages up to and including 450/750V |
|
H-105 |
105℃ PVC sheathing materials |
Sheath of wires and cables at temperature classification of 105 ℃ |
2. Executive Standards
GB/T 8815-2008、Q/WRD 001-2016
3. Processing
A single screw extruder is used in the processing, with the length-diameter ratio of screw L/D≥20. The recommended reference processing temperatures are shown below:
|
Sections |
Section 1 |
Section 2 |
Section 3 |
Section 4 |
Extrusion Head |
Extrusion
Die |
|
Temperatures/℃ |
140±10 |
160±10 |
170±5 |
175±5 |
175±10 |
170±10 |
4. Packaging, Transportation and Storage
Packaging: The net weight of each bag is (25±0.2) kg. The inner bag is polyethylene film and the outer bag is craft paper composites.
Transportation and storage: No exposure to sunshine and rain during transportation. It should be stored in the clean, cool, dry and ventilated warehouse.