ASTM D3284用便携式仪表测定电气装置气体空间中可燃性气体的标准试验方法
日期:2012-02-10 11:51
This field practice covers the detection and estimation of combustible gases in the gas blanket above the oil or in gas detector relays in transformers using portable instruments. It is applicable only with transformers using mineral oil as the dielectric fluid. Gases dissolved in the oil and noncombustible gases are not determined. A method of calibrating the instruments with a known gas mixture is included.
1.2 This practice affords a semi-quantitative estimate of the total combustible gases p
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