Typical Physical Characteristics

Property

Units

Method

IEC 60296 Requirement

Diala BX

 

 

 

 

 

 

 

 

 

 

 

 

 

Appearance

 

IEC 60296

Clear, free from sediment and

 

 

 

Complies

 

 

suspended matters

 

 

 

 

 

 

 

 

 

 

 

 

Density at 20 ºC

kg/m3

ISO 3675

Max. 895

881

 

Kinematic viscosity at 40 ºC

mm2/s

ISO 3104

Max. 12

10

 

Kinematic viscosity at –30 ºC

mm2/s

ISO 3104

Max. 1.800

1.400

 

Flashpoint P.M.

ºC

ISO 2719 / ASTM

Min. 135

140

 

D93

 

 

 

 

 

 

 

 

 

 

 

 

Pourpoint

ºC

ISO 3016

Max. -40

-57

 

 

 

 

 

 

 

Neutralisation value

mg KOH/g

IEC 62021-1

Max. 0,01

< 0,01

 

 

 

 

 

 

 

Corrosive Sulphur

 

DIN 51353

Not corrosive

Not corrosive

 

 

 

 

 

 

 

Corrosive Sulphur

 

IEC 62535

Not corrosive

 

 

 

 

 

 

 

Corrosive Sulphur

 

ASTM D 1275 B

Not corrosive

 

 

 

 

 

 

 

Breakdown voltage

kV

IEC 60156

 

 

 

Untreated

 

 

Min. 30

>30

 

After treatment

 

 

Min. 70

>70

 

 

 

 

 

 

 

Dielectric Dissipation Factor

 

IEC 60247

Max. 0,005

0,002

 

(DDF) at 90 ºC

 

 

 

 

 

 

 

 

 

 

 

 

 

Oxidation Stability

 

IEC 61125 C

 

 

 

(500 h /120 ºC)

 

 

 

 

 

 

 

 

 

Total acidity

mg KOH/g

 

Max. 1,2

0,7

 

Sludge

%m

 

Max. 0,8

0,3

 

DDF at 90ºC

 

IEC 60247

Max. 0,5

0,2

 

Specifications and Approvals

Shell Diala BX meets the following specification:

  • IEC 60296 (2003)
  • Table 2 Transformer Oil (I), inhibited

Shell Diala BX meets both the established and the new industry copper corrosion tests.

Applications

Shell Diala BX is an inhibited insulating oil manufactured from naphthenic feedstocks. It offers good dielectric properties, good oxidation stability and provides efficient heat transfer. It has excellent low temperature properties achieved without the use of pour point depressants.

For use in:

  • Transformers – Electrical insulating oil for grid and industrial transformers.
  • Electrical equipment – Components such as rectifiers, circuit breakers and switchgears.

Get it now