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110kV and below ultra-high voltage semiconductive flame-retardant sheath shielding material YD-PE-20

This product is mainly suitable for ultra-high pressure semiconductive flame-retardant polyethylene sheaths and has certain flame-retardant performance.

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Product details

Product model and name:

YD-PE-2020(ZH) 110kV and below ultra-high voltage semiconductive flame-retardant sheath shielding material

Performance indicators (typical values)： enforce standardsQ/THC 006-2020

Serial number	Test project		Unit	Indicator	Typical value
1	Density		g/cm3	≤1.30	1.10
2	Tensile strength		MPa	≥12.5	13.4
3	Elongation at break		%	≥150	340
4	Air thermal aging	Test conditions	/	100℃×168h
		Rate of change of tensile strength	%	±25	13
		Rate of change in elongation at break	%	±25	-12
5	Impact embrittlement performance（-40℃）		Number of failures	≤15/30	12/30
6	Volume resistivity at 20℃		Ω.cm	≤100	13.8
7	Oxygen index		%	≥27.5	28
8	Resistant to environmental stress cracking		F0/h	≥500	630

Application process reference

It is recommended that the temperature of the extruder body be between 80℃ and 140℃. Neck temperature: 145℃ to 155℃ Head temperature: 155℃ to 165℃. It is recommended to use a 20× 60-mesh double-layer filter screen.

Packaging and storage

1) The product is packed in a waterproof and dustproof PE inner bag, supplemented by a hard corrugated carton for shaping and protection, and an additional waterproof film cover. The standard net weight of each box is 500kg or 600kg.

2) It should be stored in a clean, dry and well-ventilated environment, with an appropriate storage temperature ranging from 0℃ to 35℃.

3) The stacking height should not exceed two layers, and the upper and lower layers should be neatly stacked. It is not advisable to stack them in a staggered manner.

4) The validity period is 6 months under suitable storage conditions.