FIELD: measurement technology. SUBSTANCE: examined material in the form of plate with thickness d and known cross-section area S is put into capacitor primary converter containing two instrument electrodes having same working capacitance Cw and placed along line of propagation of heat at distance l one from another and heating unit. Heating condition is set and heating power is found by formula P=UI. Root-mean-square values 
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of electric fluctuations and dielectric characteristics such as dielectric permittivity ε′ and dielectric loss factor ε″ free of effect of external electric field are measured. Coefficient λ of thermal conductivity is computed by obtained data is determined by given formula. EFFECT: increased informativity of results of determination of coefficient of thermal conductivity. 1 dwg
