title: Ð Ð°ÑÑÐµÑ Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾ Ð´Ð¾Ð¿ÑÑÑÐ¸Ð¼Ð¾Ð¹ ÑÐ¾ÐºÐ¾Ð²Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð¿Ð¾Ð´Ð·ÐµÐ¼Ð½ÑÑ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ 6-20 ÐºÐ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Calculation of the long-term permissible current load of underground cable lines 6-20 kV
Creators: name: Ð ÑÐ·Ð°Ð²Ð¸Ð½, Ð¡ÐµÑÐ³ÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾ Ð´Ð¾Ð¿ÑÑÑÐ¸Ð¼Ð°Ñ ÑÐ¾ÐºÐ¾Ð²Ð°Ñ Ð½Ð°Ð³ÑÑÐ·ÐºÐ°
ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð¹ Ð»Ð¸Ð½Ð¸Ð¸
ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ ÑÐµÐ¿Ð»Ð¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ°
ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ ÑÐµÐ¶Ð¸Ð¼
ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð°Ñ Ð»Ð¸Ð½Ð¸Ñ
ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÐ¹ Ð±Ð»Ð¾Ðº
long-term permissible current load
cable line resistance
thermal conductivity coefficient of the cable unit
thermal mode
cable line
cable unit

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ¶Ð¸Ð¼Ð° ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ° Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ°ÑÑÐµÑÐ° Ð´Ð¾Ð¿ÑÑÑÐ¸Ð¼Ð¾Ð¹ ÑÐ¾ÐºÐ¾Ð²Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ñ ÑÐ¿ÑÐ¾ÑÑÐ¸ÑÑ Ð¸ ÑÑÐºÐ¾ÑÐ¸ÑÑ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ°ÑÑÑÑÐ¾Ð². ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ°. 2. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐºÐ²Ð¸Ð²Ð°Ð»ÐµÐ½ÑÐ½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ°. 3. Ð¡ÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ñ ÐÐÐ­. 4. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐ¾ÐºÐ¾Ð²Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð¹ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ð´Ð»Ñ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ Ð¸Ð· Ð¡ÐÐ­ Ð½Ð° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ 6-20 ÐºÐ, ÑÐ°ÑÐ¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ Ð² ÐÐÐ¥ ÑÑÑÐ±Ð°Ñ, Ð² ÑÑÑÐ±Ð½Ð¾Ð¼ Ð±Ð»Ð¾ÐºÐµ. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°ÑÑÐµÑÐ¾Ð² Ð±ÑÐ»Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ ÑÐºÐ²Ð¸Ð²Ð°Ð»ÐµÐ½ÑÐ½ÑÐµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð»Ð¸Ð½Ð¸Ð¸. ÐÑÐ» Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ¶Ð¸Ð¼Ð° ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ°. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ, ÑÐ´Ð°Ð»Ð¾ÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÑ ÑÐ°ÑÑÑÑÐ° Ð´Ð¾Ð¿ÑÑÑÐ¸Ð¼Ð¾Ð¹ ÑÐ¾ÐºÐ¾Ð²Ð¾Ð¹ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ°. ÐÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Comsol, Mathcad, Mathlab.
description: This work is devoted to the study of the thermal mode of the cable unit and the development of a methodology for calculating the permissible current load, which will simplify and speed up the calculation process. Tasks, that were solved during the researches: 1. Building an analytical model of the cable unit. 2. Determination of equivalent parameters of the cable unit. 3. Comparison of the methodology with FEM. 4. Determination of the current load using the method under study. The studies were carried out for high-voltage cable lines made of XLPE at a voltage of 6-20 kV, located in PVC pipes, in a pipe block. During the calculations, the equivalent parameters of the line were determined. The analysis of the thermal regime of the cable unit was carried out. In conclusion, the results of calculating the permissible current load of the cable unit using the method under study were compared with the available database. Calculations were carried out using Comsol, Mathcad, and Mathlab programs.