3520 Phenolic Laminated Paper Tube for Transformer

• Customization: Available
• Application: Electrical Power System, Electronic Device, Industrial Equipment
• Color: Brown
• Model NO.: 3520
• Material: Insulation Paper, Phenolic Resin
• Maximum Voltage: 15kv(Thickness 3mm)
• Thermal Rating: B 130
• Thickness: 1-50mm
• Density: 1.03–1.1 G/Cm³
• Loss Factor(50Hz): ≤0.03
• Bending Strength Inside Diameter 5-25mm: ≥ 50MPa
• Bending Strength Inner Diameter (>25mm): ≥ 60MPa
• Wasser Absorption Rate: Wall Thickness 3mm ≤ 8%
• Transport Package: Export Pallets
• Specification: customized
• Trademark: Huai′an Jianlong
• Origin: Huai′an
• Production Capacity: 2000ton

Product Description

Product Description

Phenolic paper tube is a laminated insulation material made by impregnating insulating paper with phenolic resin and then hot pressing and curing it. It is mainly used for insulation structural components of electrical equipment such as transformers and motors, and has excellent dielectric properties and mechanical strength.

Technical Parameters

Properties		Unit	Grade
			3520 phenol Papier Laminated tube
			Innen durchmesser (5-25mm)			Innen durchmesser (>25mm)
Density		G/cm3	≥ 1,03			≥ 1,10
Water absorption rate		%	Wall thickness 3mm ≤ 8
Thermostability (24h)		°C	120			120
Bending strength		MPa	≥ 50,0			≥ 60,0
Pressure resistance		MPa	≥ 50,0			≥ 60,0
Shear strength		MPa	-			-
Loss factor	50Hz		≤ 0,03			≤ 0,03
Tensile strength		KV/mm	Wand dicke	1,5-2,5mm	≥ 8,5	≥ 8,5
(In 90±2°C/5min transformer die)				> 2,5-3,5mm	≥ 8,0	≥ 8,0
				> 3,5-4,5mm	≥ 7,0	≥ 7,0
				> 4,5-6mm	≥ 6,5	≥ 6,5
				> 6-9mm	≥ 6,0	≥ 6,0
Dielectric collapse parallel to sheet metal (in 90 ± 2 °C/5min transformer oil)		KV		20		25
Surface withstand voltage (in case of humidity, under normal condition air withstand voltage 1 min)		KV		12		12

ABOUT US
Huai'an Jianlong Electrical Technology Co., Ltd. is a professional manufacturer of insulation materials, integrating research and development, production, and sales of electrical and electrical insulation materials. The company is located in Huai'an, Jiangsu, the most promising financial sustainable development city. The company currently has 10 professional engineers and over 60 technical personnel, with a monthly output of over 100 tons.
Our products mainly include various insulation boards, insulation tubes, insulation rods, insulation composite materials, and insulation processing parts. The product is widely used in equipment such as generators, motors, transformers, etc. for coil insulation, component isolation, insulation protection of high-voltage cables, switchgear, circuit breakers, etc. There is a significant demand for ultra-high voltage power grid construction; Electronics and semiconductor industry; In the field of new energy, etc.
The company strives for survival through product quality, promotes development through technological innovation, ensures production with first-class process equipment and inspection instruments, and provides high-quality products and excellent services to new and old customers at home and abroad with exquisite production technology and a spirit of continuous innovation.

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