35KV-YPB Is A Strippable Semi-Conductive Insulator For XLPE Insulated Cables

1、Summary
  
As a semi-conductive cross-linked strippable insulation shield for medium voltage XLPE insulated cables, the product quality is stable and easy to strip. It is also suitable for various wet or dry cross-linked production lines. The produced cables have the characteristics of smooth surface, excellent electrical and physical properties and easy processing.

2、Appearance

It is granular in shape, with a diameter of about 4 mm and a height of about 3 mm. The color and size of the granules are uniform.

3、Main performance indicators

Serial number

Projects

Unit

Indicators

35KV-YPB

1

density

g/cm3

≤1.2

2

tensile strength   

MPa

≥10.0

3

elongation at break

%

≥200

4

Air thermal aging test
Test Conditions: Thermal Aging Temperature
Duration
The change rate of tensile strength does not exceed
The change rate of elongation at break does not exceed


h
%
%

135±2
168
±30
±30

5

Impact embrittlement
Test conditions: test temperature
Impact embrittlement properties


Number of Failures

-40
≤15/30

6

Thermal extension
Test conditions: temperature
Mechanical load
Load time
Elongation under load
Permanent Deformation after Cooling


Mpa
min
%
%

200±2
0.2
15
≤100
≤15

7

20℃ Volumetric resistivity

Ω.cm

≤100

8

90℃ Volumetric resistivity

Ω.cm

≤2500

9

Volumetric Resistivity after Air Thermal Aging
Test Conditions: Aging Temperature
Duration
90℃ Volumetric resistivity


h
Ω.cm

100±2
168
≤500

10

peel strength(23℃)

N/cm

10―40

11

Peeling Strength after Air Thermal Aging
Test Conditions: Aging Temperature
Duration


h

100±2
168


4、Suggested Body Temperature of Extruder:70℃~100℃;Neck temperature:103℃~105℃;

Head temperature:110℃~115℃

2 x 20 mesh double-layer filter is recommended.

5、Packaging, storage and transportation

Semi-conductive shielding material is packed in double-layer polyethylene film, sealed and packed in rigid corrugated cartons which are not easy to break. The coat is waterproof film cover. The net weight of each carton is 500 kg.

Store in a clean, dry and ventilated warehouse with a stacking height not exceeding three boxes.

The transportation process is free from sunshine, rain and mechanical damage.