Insulating oil specification

The insulating oil we use has the followingtyprical characteristics: 

Property

Units

Method

Requirements

(IEC 60296)

Appearance

      -

IEC 60296

clear, free   from sediment

Density at 15  °C

kg/m³

ISO 3675

  -

Density at   20 °C 

kg/m³

ISO 3675

< 895

Kinematic   viscosity at 40 °C

mm²/s

ISO 3104

12 max

Kinematic   viscosity at -30 °C

mm²/s

ISO 3104

1800 max

Flashpoint   P.M

°C

ISO 2719

135 min

Pourpoint

°C

ISO 3016

< -40

Neutralisation   value

mg

IEC 62021-1

0,01 max.

Corrosive   sulphur

      -

IEC 62535


Corrosive   sulphur  

      -

ASTM D 1275   B


Corrosive   sulphur

      -

DIN 51353

not   corrosive

Breakdown   voltage untreated

kV

IEC 60156

min 30

Breakdown   voltage after treatment

kV

IEC 60156

min 70

Water   content (ex works)

ppm

IEC 60814

40 max (IBC)   30 max (bulk)

Dielelectric   dissipation factor at 90 °C 

      -

IEC 60247

0,005 max

Oxidation   stability (164 h / 120 °C)

Neutralisation   value

mg KOH/g

IEC 61125 C

1,2 max

Sludge   content

% m

IEC 61125 C

0,8 max

Dielelectric   dissipation factor at 90 °C 



0,5 max

Oxidation   stability Baader (140 h / 110  °C)

Neutralisation   value

mg KOH/g

DIN 51554

      -

Sludge   content

% m

DIN 51554

      -

Dielelectric   dissipation factor at 90 °C 



      -

 

 



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