Application:
SEJ90-2-ZR is two-step silan cross-linkable PE insulation compound for low-voltage cables. It is a kind of insulations of low-voltage cables
and control cables through squeeze tube mold production process. It is made from silan grafted A, catalyst B and halogenous flame-retardant
masterbatch SEJ90-ZR. The density of SEJ90-ZR is 1.82±0.2g/cm3,the proportion between A and B is 95:5. The Adding amount of
flame-retardant masterbatch changes according to the section surface sizes of the cables (10%~30%). It is mainly suitable for the cables
of American Standards like XHH, XHHW, XHHW-2, RHH, RHW, RHW-2 and SIS. Large adding amount for small section surface size,
and small amount for large section surface size. The general purposes are to make sure the cables pass horizontal burning test of UL-44.
Working voltage for wire and cables are 1KV and below, the highest working temperature is 90℃.
Processing Indicator
Recommend to process with the PE extruder.
Main technical data:
Model
|
Machine Barrel Temperature |
Molding Temprature
|
SEJ90-2-ZR |
160-190℃ |
195-200℃ |
Item
|
Unit
|
Technical requirements
|
|
Tensile Strength
|
MPa |
≥10.5 |
|
Elongation at Break
|
% |
≥150% |
|
Brittle Temperature with Low Temperature
|
℃ |
-25 ≤15/30 |
|
20℃ Volume Resistivity
|
Ω·m |
≥1.0×1013 |
|
Flammability
|
/ |
||
Air Aging Condition 121±2℃×168h |
Tensile Strength Variation After Aging
|
% |
±30 |
Elongation Variation After Aging
|
% |
±30 |