狼群
发表于 2025-3-30 08:14:46
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中世纪
发表于 2025-3-30 14:20:56
Insulators,umidity, dew, fog, rain, as well as . by deposits of dusts, salts, firing residuals and industrial gases. The . should be so high that every incident load is carried with enough operational security. . and . should be large enough to withstand the .. Definitions can be found in IEC 60 050-471
Cacophonous
发表于 2025-3-30 20:16:28
Conductor vibrations,zardous vibrations that impair the reliability and . of a power line. Special attention should be paid to all types of . when designing a power line to keep adverse drawbacks at a minimum. Three main groups may be distinguished, so far as vibration excitation, vibration modes and frequencies are concerned .
Delirium
发表于 2025-3-30 22:13:07
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gimmick
发表于 2025-3-31 04:18:43
Earthing,The standard EN 50341-1 lists five requirements for earthing systems:
OGLE
发表于 2025-3-31 08:54:18
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PALMY
发表于 2025-3-31 10:59:46
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藕床生厌倦
发表于 2025-3-31 15:32:52
Requirements on loading and strength,e the mechanical strength of these components taking care of the fact that a failure of any component may lead to the loss of the complete transmission capacity. As shown in Figure 6.1, the overhead line system is divided into four . and .. There, the supports may be suspension, angle, strain or dead-end towers.
遗产
发表于 2025-3-31 17:52:56
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Mawkish
发表于 2025-4-1 00:54:04
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