PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating
PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating
PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating,
is a kind of electrical power system uses the new electrical function
material, it¡¯s specially for the electrical network and each round,
loses, uses electricity the customer to be lasting eliminates the
equipment flashover thoroughly the hidden danger then to design, It¡¯s
developed jointly by the North China electric power academy of science
with our company successfully. The product has the unique chemical
composition and the structure, achieved and surpasses the heat
vulcanization silicon rubber physics electrical specification, Overall
performance and so on more outstanding water repellency nature, as well
as 20 years design service life has provided a kind of new technical
measure for the electric porcelaneous equipment permanence counter-
dirt.
1. Product Execution Qualification
This uses
the North China electric power group company standard "Outside the
Power equipment To insulate with Takes shape the Permanence Anti
flashover the Compound Coating (PRTV) To use Leads Then", With Hebei
silicon valley chemical industry limited company standard Q/HGH
019-2004 ¡°Outside PRTV Power equipment Insulates with Takes shape
Permanence Anti flashover Compound Coating" to organize the product the
production and the construction.
2. Range of application
This product
mainly uses in the electrical power system transformer substation and
the transmission line insulator, the power plant and the electric power
user changes outside the electricity equipment as well as other
electrical equipments insulates lastingly anti flashover . After the
porcelain (or glass) the insulator uses this product, Forms the
porcelain (or glass) the skeleton complex effect, Enhances one kind of
standardized disposition plan which outside the power transformer
equipment insulates. Is suitable in alternating and direct circuit
system rated voltage 1~750kV, Environment Temperature -50¡æ~ +50¡æ, Under
the contamination condition moves outside the transformer substation
and the impractical transmission line equipment insulates antifouling,
Prevention flashover, Enhances the equipment outside to insulate the
rank.
3. Operation Guide
To porcelain
(or glass) insulator superficial thorough clear dirt, Removes the
contamination, the fat and other attachments, After waits the electric
porcelaneous surface pure to be dry, May use to spurt spreads or
brushes spreads and so on to spread spreads the method to carry on the
construction, Coating thickness is 0.5 ~ 0.6mm, the coating should leak
proof spread, not dribble, does not hang the silk, The surface is
smooth, levels also does not have the air bubble. Originally has used
the RTV equipment, Should be clean the unreliable attachment cleaning
up, remove the contamination, After uses the special-purpose processing
medicinal preparation to clean, Again executes spreads PRTV.
4. Package and Storage
This product
packing in airtight metal container, When storing and transportation
should maintain dry and ventilates, Prevented all day exposes to the
sun, the rain drenches. The storage time is 1 year, Duplicate surpassed
the storage time after to examine qualified still may use when the
coating uncaps the use, if has not used up, Should cover securely
immediately the airtight preservation.
PRTV outside power equipment insulates with takes shape permanence anti flashover compound coating Technology parameter data sheet
Items |
Q/HGH 019-2004 Standard |
Technical Property £¨Test£© |
Test method |
Outward appearance
|
Does not
have the obvious mechanical impurity and the cotton wool shape, The
coating should level, be smooth also does not have the air bubble |
Toughness liquid, Does not have the impurity and the cotton wool shape, The coating is smooth also does not have the air bubble |
GB 1721-1979 |
Viscosity s |
100~200 |
160 |
GB 1723-1993 |
Dielectric Strength kV/mm |
¡Ú25 |
32.3 |
GB 1408-1978 |
Surface resistivity ¦¸¡¤m
Volume resistivity ¦¸¡¤m |
¡Ú1¡Á1012 |
4.25¡Á1013 |
GB 1410-1978 |
¡Ú1¡Á1014 |
2.92¡Á1015 |
Relative permittivity dielectric lose tangent value |
¡Û3.0 |
2.7 |
GB 1409-1978 |
¡Û0.3% |
2.5¡Á10-3 |
Arc resistance s |
¡Ú180 |
217 |
GB 1411-1978 |
Electricity wear and tear leaks |
AC
Alternating current |
¡ÚTMA 4.5 |
1A 4.5 |
GB 6553-1986 |
DC
Direct current |
¡ÚTMA 3.5 |
1A3.5 |
Adhesion ability |
Cementation shearing strength MPa |
¡Ú3.0 |
4.7 |
GB 13936-1992 |
Cycling method level |
No less 2 level |
1 |
GB1720-1989 |
Abrasion resistance g |
¡Û0.05 |
0.035 |
GB 1768-1989 |
Ratio of Water absorption % |
¡Û0.25 |
0.15 |
GB 1738-1989 |
Hydrophobicity |
Hydrophobic
and level |
Qav¡Ý100¡ãQmin¡Ý90¡ãHC1~2 |
106¡ã~109¡ã HC1 |
DL/T810-2002 |
Lose property 96h |
Qav¡Ý90¡ãQmin¡Ý85¡ãHC3~4 |
Non showing loss |
recovery characteristic |
t¡Ü24h |
|
Water repellency characteristic 96h |
Qav¡Ý110¡ãQ min¡Ý100¡ãHC2~3 |
14 h Hydrophobicity reach HC1 110¡ã~115¡ã |
Erosion Resistance Test |
Acid , alkali and salt , 80¡æ24 h |
Does not have the corrugation, falls off, bubbles, changes color and so on, The adhesion is not lower than 2 levels |
Does not have the corrugation, falls off, bubbles, changes color the phenomenon, The adhesion is 1 level |
GB 1763-1989 |
transformer oil 105¡æ24 h |
Does not have the corrugation, falls off, bubbles and so on, The adhesion is not lower than 2 levels |
Does not have the corrugation, falls off, bubbles the phenomenon, The adhesion is 1 level |
GB 1739-1989 |
Labor frequency arc-over voltage |
Dry arc-over voltage kV |
Has the coating insulator not to have the coating insulator not to have relatively to reduce |
Paint-coat 79.2 , no 75.9 |
GB 775-1987 |
Wet arc-over voltage kV |
Paint-coat 61.9, no 55.9 |
Flashover resistance test |
U1(have paint-coat )/U2(no paint-coat )¡Ý2.0 |
U1 /U2 =2.23 |
GB 4585.1-1984 |
Heat resistant denaturation experiment -40¡æ~+80¡æ£¬2.5h¡Á5 times |
The coating should not damage, The adhesion inspection is not lower than 2 levels |
After the experiment the coating does not have bubbles, the dehiscence, falls off, Adhesion 1 level |
DL/T627-1997 |
Salt Spray test 1700 h |
The test specimen does not surpass 3 time has flowed the severance |
After 1800h£¬Does not have has flowed the severance |
GBT5892-2003
GB/SV023-2003 |
Does not have leaks the mark, The electricity wear and tears have not reached the porcelain glaze |
Does not have leaks the mark, The wear and tears have not reached the glazed surface |
Hydrophobic migration characteristic HC2~3 level |
HC1~2 level |
A row line of experiment passes ¡Ý3.0MPa |
3.5 MPa |
Flame Resistance |
FV-O level |
FV-O level |
GB/T13488-92 |
The longitudinal strength and pulls apart the elongation ratio |
Strength MPa |
¡Ú4.0 |
5.5 |
GB/T528-1988 |
elongation % |
No less 350 |
390 |
peel strength kN/m |
¡Ú12.0 |
17.5 |
GB/T529-1988 |
Hardness (Shao ) |
35~55 |
46 |
GB/T531-1999 |
Vulcanizing time |
Surface Dry up min |
20~50 |
35 |
GB6753.2-1986 |
Full dry up h |
¡Û72 |
65 |
storage stability 50¡æ |
¡Ý45days |
After 60 days £¬A row line of experiment passes |
GB6753.3-1986 |
Self Clearance property [Only requests antifouling] |
After the dirty fluid cementation is dry, Strips the intensity ¡Û3kPa(1 level ) |
Peel off strength 2.3kPa(1 level ) |
QB/SV021-2003 |
Anti ¨Cicing property [Only requests to guard against the ice] |
Anti- regelation (measure) |
Paint-coat ice cover measure /no paint-coat ¡Û30% |
18.3% |
QB/SV022-2003 |
hydration property |
DC value ¡Ú90% |
91.2% |
|
|
|
|
|
|
|
Previous
