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- IEC 61620 Insulating liquids - Determination of the dielectric dissipation facto IEC 61620 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method9 Expression of resultsResults may be calculated using the following equation:whereG is the conductance, in siemens (S);C is the capacitance, in farad (F);ω ...
- IEC 61620 Insulating liquids - Determination of the dielectric dissipation facto IEC 61620 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method8 ProcedureIn order to get a significant measurement of dissipation factor tan δ, it is essential to follow precise rules concerning- the careful cleaning ...
- IEC 61620 Insulating liquids - Determination of the dielectric dissipation facto IEC 61620 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method5 ApparatusApparatus specifically constructed or assembled from stand-alone instruments can be used to realize this measurement method. The block diagram shown ...
- IEC 61620 Insulating liquids - Determination of the dielectric dissipation facto IEC 61620 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method4 Principle of operationThe principle of operation is to measure both the capacitive current and the conduction current by applying an alternate square wave ...
- IEC 61620 Insulating liquids - Determination of the dielectric dissipation facto IEC 61620 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test methodIntroductionThe conductivity σ is a characteristic of a liquid only if it is measured at thermodynamic equilibrium.To fulfil this requirement high electric ...
- IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography12 Test reportReport as total PCB content in mg/kg to the nearest 1 mg/kg.State the data set that was used, e.g. "all probables".13 Detection limitDetection ...
- IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography11 ProcedureSafety precautionsExercise normal laboratory safety precautions, wear gloves, impervious to mineral oil and light hydrocarbon solvents. Use only ...
- IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography8 Chromatograph operating conditions8.1 GeneralThe operating conditions given below have been found to be adequate but they should be optimized with each GC ...
- IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography5 Reagents and auxiliary materials5.1 Reagents and standardsAll reagents and materials, including those for clean-up, shall be free from PCB contamination and ...
- IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) IEC 61619 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography1 Scope and objectThis International Standard specifies a method for the determination of polychlorinated biphenyl (PCB) concentration in non-halogenated insulating ...