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Phenolic paper laminated board

一、SUMMATION
It is made of phenolic resin and fibrin paper, types are 3020 and 3021, good electric performance and mechanical performance under normal condition. Fit for insulating parts which need certain mechanical performance and electric performance for machine, motors and electrical apparatus and they can also be used for the transformer oil.
二、Requirement
1、Appearance: surface should be flat and velvet, without wrinkle and crack, avoid other disfigurement, such as scratch, impress, a few spot is available
2、Width, length and permissible error (Unit: mm)

Width and length	Permissible error	Width and length	Permissible error
450～1000	±15	＞1000～2600	±25

3、max windage between laminated board and 1000mm ruler（Unit: mm）

Nominal thickness	Permissible error	Nominal thickness	Permissible error
1.6～3	See remark	＞6～8	8
＞3～6	10	＞8	6
Remark: permissible windage towards laminating board with 1.6～3 nominal thickness are under consideration by the state

4、Performance Index

No	Performance	Unit	3020 index	3021index
1	Vertical Bending Strength	Mpa	≥120	≥120
2	Vertical Compression Strength	Mpa	≥300	≥250
3	Parallel shear strength	Mpa	≥10	≥10
4	Peel strength	Mpa	≥100	≥100
5	Bond strength	N	≥3600	≥3200
6	Parallel Breakdown Voltage (90±2℃ OIL)	Kv	≥35	≥20
7	Comparative creepage tracking index	/	≥100	≥100
8	Density	g/cm3	1.3～1.4	1.3～1.4

Phenolic resin cellulose paper-base laminated sheet 3021-TG	Phenolic resin cellulose paper-base laminated sheet 3021-AX	Phenolic resin cellulose paper-base laminated sheet 3021-TG(black)
Phenolic resin cellulose paper-base laminated sheet 3021-TG	Phenolic resin resin cellulose paper-base laminated sheet 3021-TG