Abstract
It is shown that the method for testing power cables for the absence of ignition presented in Circular Ts-02-98 does not allow for the effect of thermal decline of the current, which leads to overestimation of the cross section of the chosen cables, especially in 0.4-kV networks. It is recommended to equip house cable networks of power objects with long-range backup protections.
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REFERENCES
Rules for Setting up Electrical Devices [in Russian], Énergoatomizdat, Moscow (1986).
Instructions No. 2794-É, Izd. ATÉP Minénergo (1986).
Circular Ts–02–98 (é). Testing of Cables for Absence of Ignition under the Action of Short-Circuit Currents [in Russian], Izd. RAO “EÉS Rossii” (1998).
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Mokeev, S.F., Vinnitskii, S.A. & Mokeev, A.S. Testing Cables for Thermal Stability. Power Technology and Engineering 37, 313–316 (2003). https://doi.org/10.1023/B:HYCO.0000009800.17740.08
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DOI: https://doi.org/10.1023/B:HYCO.0000009800.17740.08