40.5A

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Product description

Parameters

　　Wind power is an important form of wind energy utilization. Wind energy is a renewable, pollution-free, high-energy, and promising energy source. Wind power technology and equipment are an important part of the wind power industry, as well as the foundation and guarantee for the development of the wind power industry. The wind variable outer sleeve has become one of the important development products of all companies at home and abroad. This product has high electrical performance requirements. It can run at 80℃ in transformer oil for a long time, and it must be able to withstand a pressure of 0.6Mpa without air leakage.

category	parameter
Temperature resistance	Class B 130 degrees
Raw materials	Epoxy resin + alkali-free glass fiber
Product color	Light green, other colors can be customized
Glass fiber content	70～75%
Inner diameter range	6～150mm (can be customized according to customers)
Length range	5～2200mm (can be customized according to customers)
Wall thickness	≥0.8mm
Surface finish	Can be processed according to customer needs
Mechanical strength	high
Quality Certification	ROHS
Performance test data
Serial number	Test items		unit	Claim	Test results	Detection method
1	density		g/cm3	≥1.70	1.98	GB/T 5132-2009
2	Water absorption		%	≤0.2	0.03	GB/T 23100-2008
3	Axial compression strength		Mpa	≥150	161
4	Shear strength between layers		Mpa	-	35.6
5	Power frequency dielectric loss factor		-	≤5x10-2	5.3x10-3
6	Parallel layer direction withstand voltage (90 ℃ ± 2 ℃ oil 40KV 1min)		-	-	pass	GB/T 5132-2009
7	Vertical layer direction withstand voltage (90℃±2℃ 20KV 1min in oil)		-	-	pass
8	Insulation resistance	normal	Ω.m	-	3.4x1014
9	Insulation resistance	After soaking in water for 24h	Ω.m	-	7.0x1013
10	Partial Discharge	Starting voltage	kV	-	55.1	GB/T 7354-2003
11	Partial Discharge	Extinguish voltage	kV	-	51.8	GB/T 7354-2003
12	Lightning impulse breakdown voltage (axial, normal oil)		kV	-	327	GB/T 1408.3-2007