Pressboard High Density Paper Board High Voltage Transformer Insulation Paperboard Pressboard

• Application: Insulators, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Switch Baseplate, Transformer
• Type: Insulation Sheet
• Chemistry: Inorganic Insulation
• Material: Wood Pulp
• Thermal Rating: A 105
• Maximum Voltage: 10~110kv
• Model NO.: INSULATION PRESSBOARD
• Classification: Inorganic Insulation Material
• Certification: ISO9001, SGS
• Color: Nature and Red
• Brand: Newdesen
• Size: 1000*2000mm
• Package: 500kg or 1000kg
• Quality Grade: B ,a, and G4
• Transport Package: Pallet
• Specification: 0.50~20.0MM
• Trademark: NEWDESEN
• Origin: Henan
• HS Code: 48089
• Production Capacity: 60tons/Month

Product Description

Product Description

1. DESCRIPTION
Laminated paperboard is made of High-quality transformer board with casein, polyester resin or phenolic resin impregnated sheet by hot pressing process. It has obviously good properties in mechanical strength and insulation strength than laminated wood. Large square laminated board is now available.
                                                
Thickness: 5.0mm-150mm
Size: 2100*4200mm, 3200*4200mm, 1400*3200


2. FEATURES

• Highest mechanical strength
• Excellent electrical insulation properties
• Stable dimension

3. APPLICATIONS
Typical applications of laminated TRANSFORMERBOARD are pressure rings, static rings, beams, clamping plates and support strips etc. in power, distribution and special transformers.

4. TECHNICAL PARAMETER

Item	Unit	Standard
Thickness Tolerance	%	±7.5
Apparent density	g/cm^3	1.15-1.30
Shrinkage                           MD                                   CMD                            Thickness	%	≤0.50                          ≤0.70                ≤6.00
Ash content	%	≤1.0
PH of aqueous extract	%	6-9
Oil absorption	%	≥6.0
Conductivity of aqueous extract	mS/m	≤15.0
Electrical strength in oil	KV/mm	≥8.0
Moisture content	%	5.0-9.0