Phenolic cotton cloth laminated sheets
公司介绍
Properties
Units
3025
3025b
3025c
3026
3027
3028
PFCC201
PFCC202
PFCC203
PFCC204
F850
F851
F852
F853

Flexural strength perpendicular to
lamination    

MPa
100
90
70
110
90
100
100
90
110
100
100
90
110
100
Notch impact strength parallel to lamination charpy ≥
KJ/m2
8.8
7.0
7.8
6.0
8.8
7.8
7.0
6.0
8.8
7.8
7.0
6.0
Bonding strength 
N
5500
5500
Dielectric strength perpendicular to laminationin oil 90±2)     
MV/m
0.82
2.0
1.5-2m
2.0
1.5-2m
0.82
5.1
6.3
0.82
5.1
0.82
6.3
Breakdown voltage parallel to laminationin oil 90±2    
KV
1
1
18
20
1
20
20
1
35
(0.8-25mm)
40
(0.8-25mm)
Dielectric strength
Relative dielectric coefficient  
5.5
5.5
5.5
5.5
5.5
5.5
Insulation resistance after impregnated in
water
     
Ω
1×106
1×106
5×107
5×107
1×106
5×107
1×106
5×107
1×106
5×107
1×106
5×107
Water absorption
1mm
      
mg
206
206
136
136
206
136
206
136
206
136
206
136
Colour
Natual or black
Reference standard
JB/T 8149.2-2000
Enterprise's standards
JB/T8149.2-2000
IEC893-1993
Enterprise's standards
Characteristic & Application:

1. 3025
PFCC201F850Primarily intend for mechanical applications. Not recommended to use for electrical applications. 3025B and 3025C not stronger than 3025, but more economical than 3025, similar to NEMA's C grade.

2. 3027
PFCC202F851Suitable for mechanical & electrical applications the latest with better electrical performance than the other grades, and similar to NEMA's CE grade.

3. 3026
PFCC203F852Primarily intend for mechanical applications, the latest with better general properties than the others , similar to NEMA's L grade.

4. 3028
PFCC204F853Suitable for mechanical & electrical applications, the latest with better electrical performance than the others and similar to NEMA's LE grade.