Menurut standar IEC 60422 telah dicantumkan parameter-parameter minyak isolasi dengan batasan minimum untuk minyak isolasi yang baru ke dalam peralatan sebelum energize.
Property
|
Highest Voltage For Equipment kV
| ||
< 72,5
|
72,5 to 170
|
> 170
| |
| Appearance |
Clear, free from sediment and suspended matter
| ||
| Colour (on scale given in ISO 2049) |
Max. 2,0
|
Max. 2,0
|
Max. 2,0
|
| Breakdown voltage (kV) |
> 55
|
> 60
|
> 60
|
| Water content (mg/kg)a |
20b
|
< 10
|
< 10
|
| Acicity (mg KOH/g) |
Max. 0,03
|
Max. 0,03
|
Max. 0,03
|
| Dielectric dissipation factor at 90 oC and 40 Hz to 60 Hz c |
Max. 0,015
|
Max. 0,015
|
Max. 0,010
|
| Resistivity at 90 oC (Gm) |
Min. 60
|
Min. 60
|
Min. 60
|
| Oxidation stability |
As specified in IEC 60296
| ||
| Interfacial tension (mN/m) |
Min. 35
|
Min. 35
|
Min. 35
|
| Total PCB content (mg/kg) |
Not detectable ( < 2 total)
| ||
| Particles |
-
|
-
|
See table B.1 d
|
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