Experiment and analysis method of insulation life of power supply cable polymer material
A technology of polymer materials and insulation life, which is applied in the direction of weighing by removing certain components, can solve the problems of loss of use value, inability to evaluate thermal stability of polymer materials, inaccuracy, etc., and achieve short experiment cycle , avoid circuit fires, and the effect of simple calculation
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Embodiment 1
[0059] The experimental method and analysis of the insulation life of polymer materials for power cables include the following steps:
[0060] The first step is to weigh the cable polymer material, which is cross-linked polyethylene;
[0061] In the second step, put the sample into the thermal analyzer, and heat the experiment according to the set program;
[0062] The third step is to determine the cable failure index;
[0063] The fourth step is to intercept the experimental data on the thermogravimetric curve according to the failure index determined in the third step;
[0064] The fifth step is to plot and solve with the experimental data;
[0065] The sixth step is to establish the life-time equation and analyze and calculate it.
[0066] The seventh step is to calculate the life of the cable under service temperature conditions.
[0067] The weighing described in the first step is to weigh 5 parts of the cable polymer material, the mass of which is equal to 7 mg.
...
Embodiment 2
[0075] The experimental method and analysis of the insulation life of polymer materials for power cables include the following steps:
[0076] The first step is to weigh the cable polymer material, which is polyimide;
[0077] In the second step, put the sample into the thermal analyzer, and heat the experiment according to the set program;
[0078] The third step is to determine the cable failure index;
[0079] The fourth step is to intercept the experimental data on the thermogravimetric curve according to the failure index determined in the third step;
[0080] The fifth step is to plot and solve with the experimental data;
[0081] The sixth step is to establish the life-time equation and analyze and calculate it.
[0082] The seventh step is to calculate the life of the cable under service temperature conditions.
[0083] The weighing described in the first step is to weigh 5 parts of the cable polymer material, the mass of which is equal to 8 mg.
[0084] The sampl...
Embodiment 3
[0091] The experimental method and analysis of the insulation life of polymer materials for power cables include the following steps:
[0092] The first step is to weigh the cable polymer material, which is polyvinyl chloride;
[0093] In the second step, put the sample into the thermal analyzer, and heat the experiment according to the set program;
[0094] The third step is to determine the cable failure index;
[0095]The fourth step is to intercept the experimental data on the thermogravimetric curve according to the failure index determined in the third step;
[0096] The fifth step is to plot and solve with the experimental data;
[0097] The sixth step is to establish the life-time equation and analyze and calculate it.
[0098] The seventh step is to calculate the life of the cable under service temperature conditions.
[0099] The weighing described in the first step is to weigh 5 parts of the cable polymer material, the mass of which is equal to 9 mg.
[0100] T...
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