Copper/Aluminum Foil Laminated Paper for High Voltage Transformer and Inductors Insulation

Short Description:

GBS Aluminum Foil Laminated Paper has been mainly used as a ground shield, electrostatic shielding layer, and coil conductive layer in transformers, inductors, and reactors industry, especially high-voltage transformer industry. Made of high-density insulating paper, high-purity aluminum foil (copper foil) using special adhesive and special processes, it can improve the distribution of electromagnetic field, reduce partial discharge, strengthen insulation, reduce loss and improve safety and reliability. It’s a new kind of transformer insulation material, but it’s essential.

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Product Detail

Product Tags

Copper/Aluminum Foil Laminated Paper for High Voltage Transformer and Inductors Insulation

Features

1. Aluminum or copper foil are all available;

2. High purity aluminum/copper;

3. Thickness:0.13mm-0.2mm;

4. Can be die cut/punched as per drawing.

No.	Property	Unit	Requirements
1	Base paper performance requirements
1.1	Thickness	mm	0.13 ± 0.01
1.2	Compactness	g/cm³	1.05 ~ 1.20
1.3	Ash content	%	≤ 1.0
1.4	Conductivity of water extract	mS/m	≤ 6.0
1.5	pH value of water extract	—	6.0 ~ 9.0
2	Aluminum foil (copper foil) performance requirements
2.1	Thickness	mm	0.018 ± 0.001
2.2	Purity	%	99
3	Aluminum foil (copper foil)shielding insulating paper performance requirements
3.1	Thickness	mm	0.15 ± 0.02
3.2	Tensile strength MD	N/10mm	≥ 160
3.3	Elongation at rupture MD	%	≥ 2.0
3.4	Electrical strength (In air)	kV/mm	≥ 55.0
	Electrical strength (In oil)	kV/mm	≥ 6.0