Product

Silane crosslinked polyethylene insulating material for one-step cable YJG

This product takes linear low-density polyethylene as the main raw material, and adds catalytic masterbatch, additives, etc., through a single process of specific process, it is mainly used for the production of 10kV and below overhead insulated cables.

Product details

Performance indicators (typical values):    enforce standards:JB/T 10260-2014

Serial number

Pilot project

unit

YJG

1

Tensile strength ≥

Mpa

13.0

2

Fracture elongation green ≥

%

300

3

Impact embrittlement (-76℃)≤

N/A

15/ 30

4

135℃, 168h air thermal aging

Variation rate of tensile strength≤

%

±20

Rate of change of elongation at break≤

%

±20

5

Thermal elongation

200℃,0.2MPa, 15min

Thermal elongation≤

%

175

Permanent deformation rate after cooling≤

%

15

6

50Hz、20℃

Relative dielectric constant≤


/

Dielectric loss factor≤


0.001

7

Volume resistivity (1 kV, 20℃)≥

Ω·cm

5.0×1013

8

Dielectric strength≥

MV/ m

25

9

Gel content≥

%

/

Application process reference

Recommended extruder body temperature: 160℃~200℃; Neck temperature: 200℃; Head temperature: 210℃~215℃.

Crosslinking condition

Crosslinking condition

temperature

Insulation thickness (1mm)

Warm water crosslinking

≥90℃

≥4小时

Steam crosslinking

≥90℃

≥6小时

Packaging and storage

1. 1. The product is packed with impervious aluminum foil/polyethylene composite film bag, which usually has a net weight of 25kg and is packed into a single unit, and is transported by single pallet palletizing. The net weight specifications of single pallet palletizing are 1000kg, 1250kg and 1500kg.

2. Should be stored in a clean, dry and ventilated environment, suitable for storage temperature 0℃ ~ 35℃.

3. The validity period is 6 months under the sealed condition, and it is recommended to use within 24 hours after opening. If the recommended time limit is exceeded, the quality is easily affected by pre-crosslinking.

XML 地图