Sekali Lagi, Kenapa Tahanan Rod Harus <1 v="I.R">, maka Kenaikan Tegangan Tanah adalah 25kA(asumsi arus petir) x 1 Ohm (asumsi Tahanan Rod).... Hasilnya 25kilo Volt... Bayangkan jika Tahanan Rod nya misal 10 Ohm, maka kenaikan Tegangan Tanah = 25kV X 10 = 250 kv... Bayangkan lagi kalau ternyata Equipment kita bangun di atas tanah bebatuan ... Tahanan Tanah Berbatu misal 300 Ohm = 25kV X 300 = 7500 kilo Volt ....
Rabu, 29 April 2009
Rabu, 01 April 2009
DIN EN 62305-3 (VDE
Protection against lightning - Part 3: Physical damage
to structures and life hazard - Supplement 1: Additional
information for the application of DIN EN 62305-3 (VDE
0185-305-3)
to structures and life hazard - Supplement 1: Additional
information for the application of DIN EN 62305-3 (VDE
0185-305-3)
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