Shell Diala Oil M

Shell Diala Oil M
Electrical insulating oil
Properties
Shell Diala M is an uninhibited electrical insulating fluid, for use in electrical systems where normal oxidation resistance is required. Shell Diala M is a highly refined naphthenic mineral oil with natural low pour point characteristics.

Application
Shell Diala M is intended for use in Transformers, circuit breakers, oil-filled switches and switchgears. Its gas absorbing characteristic allows the use in those applications where such a performance is required.

Performance Specifications
Shell Diala M meets the following specifications:
DIN 57370-1 / VDE 0370 Teil 1, Klasse A
IEC 296, Class I and II
ASTM D3487 Class I
British Standard BS 148-98
Shell Diala M is a virgin oil and free of polychlorinated biphenyls (PCB).
Phân phối - bán dầu cách điện máy biến áp, máy biến thế Shell Diala cao cấp

Typical Physical Characteristics

Typical Physical Characteristics Method Shell Diala M Appearance DIN 57370 bright and clear Density at 15°C at 20°C kg/m³ kg/m³ ISO 3675 ISO 3675 889 886 Kinematic viscosity at 20°C at 40°C at -30°C mm²/s mm²/s mm²/s ASTM D445 23.2 10.2 1700 Flashpoint P.M. Flashpoint COC °C °C ISO 2719 ISO 2592 141 148 Pourpoint °C ISO 3016 <45 Neutralisation value mg KOH/g DIN 51558-2 <0.03 Corrosive sulphur DIN 51353 non-corrosive Breakdown voltage (after treatment) kV IEC 156 >50 Dielectric dissipation factor at 90°C (after treatment) IEC 247 0.002 Gassing tendency mm3/min IEC 628 A < +5 Oxidation stability, Baader (140 h/110°C) Saponification number Sludge Dielectric dissipation factor at 90°C mg KOH/g %m DIN 51554 0.48 0.04 0.095 Oxidation stability (164 h/100°C) Neutralisation number Sludge mg KOH/g %m IEC 1125 A 0.20 0.04 Oxidation stability (164 h/120°C) Neutralisation number Sludge mg KOH/g %m IEC 1125 C 0.80 0.40 (*) or technically equivalent methods These characteristics are typical of current production. Whilst future production will conform to Shell’s specification variations in these characteristics may occur.