Compound silane glass fiber tape without
alkai
China Patent Serial
Number:992476259
This tape belongs to a new type of insulating material, especially
for the high voltage appliances because it is woven by the glass fiber
without any alkali and dipped in the compound silane agent.
1. Advantage:
(1) A little alkaline oxide, low inductivity and high electric strength.
(2) More multiple active functional groups, better cross-linking property.
(3) High mechanical strength and anti-fatigue, and wide utilization.
(4) Good resin applicability, fast dipping and complete cross-linking.
2. Scope:
(1) Basic material of high voltage insulating products.
(2) Insulating materials between two layers in a dry transformer.
(3) Surface insulation for an new type of magnetic wire
Technical parameter
Specification of main insulating materials of dry
transformer
|
Description
& measuring item
|
Silane
glass fiber tape
|
Polyester
fiber
non
woven
fabric
(paper)
|
Jufang
paper
411
NOMEX
|
|
Thickness
(mm)
|
0.13
|
0.13
|
0.13
|
|
CY205
resin 60℃,viscosity 0.19 pa·s,
penetration
time (s)
|
≤10
|
≤20
|
≤22
|
|
25
mm x100mm,tensile strength N/cn
|
480
|
158
|
17-30
|
|
Extensibility
(%)
|
3
|
15.4
|
3.5
|
|
Heat
resistance temperature (℃
)
|
650
|
Max.150
|
200-220
|
|
Heat
conduction parameter w/mk
|
1.2
|
0.3
|
0.3
|
|
Volume
resistanceΩcm,25℃
|
1x1013
|
1.1x103
|
1x1012
|
|
Electrical
strength kv/mm,
250
real value
|
After
dipping
≥40
|
After
dipping
≥15
|
After
dipping
≥20
|
|
Melting
point ℃
|
1560
|
360
|
430
|
|
Combustibility
|
No
|
Yes
|
Yes
|
|