{"id":54586,"date":"2016-10-23T08:38:32","date_gmt":"2016-10-23T05:38:32","guid":{"rendered":"https:\/\/yilkomer.com\/tank-ve-silolarin-yildirimdan-korunmasi\/"},"modified":"2026-01-11T22:12:13","modified_gmt":"2026-01-11T19:12:13","slug":"protection-of-tanks-and-silos-against-lightning","status":"publish","type":"post","link":"https:\/\/yilkomer.com\/en\/protection-of-tanks-and-silos-against-lightning\/","title":{"rendered":"Protection of Tanks and Silos Against Lightning"},"content":{"rendered":"

Tank and silo systems have become an attractive element for lightning impulses due to their tall and pointed structures. Moreover, tank and silo systems generally carry flammable and explosive materials. Fertilizer plants, cement production factories, oil filling facilities, etc. are particularly dangerous places, and these facilities must be lightning protected<\/strong><\/a><\/em> in accordance with the IEC 62305<\/strong> <\/em><\/span>standard. Otherwise, unwanted situations may occur as shown in the image below.<\/p>\n

\"igsas\"<\/a><\/p>\n

\"silo-lightning-protection\"<\/a>

Tanks and silos must be protected from lightning according to IEC norms due to the dangers they contain.<\/p><\/div>\n

1-External Lightning Protection System<\/strong><\/span><\/h2>\n

In order to minimize the existing risk in silos and tanks, choosing passive terminals instead of active terminals will be more correct. The ionized system emitted by active terminals<\/strong> will increase the risk in the facility. After the lightning risk analysis<\/strong><\/em><\/span><\/a> is performed, creating a protection zone according to the rolling sphere method will be the most correct method. Also, if the region is an ex-proof environment, it would be correct to choose ex-proof products<\/strong><\/em>.<\/p>\n

\"rolling-sphere\"<\/a>

Correct protection can be provided according to IEC 62305 standard with the rolling sphere method.<\/p><\/div>\n

\"tank-lightning-protection\"<\/a><\/p>\n

In the image above, a design has been made for 3 different silos according to the building structure. All three designs have been calculated in accordance with the details in the IEC 62305-3<\/strong><\/em> section.<\/p>\n

Isolated Conductor<\/strong><\/span><\/h3>\n

It is necessary to use isolated down conductors<\/strong> in tanks and silos, which are explosive and flammable facilities. Depending on the structure of the region, an isolated conductor resistant up to 200 kA can be selected. Also, lightning down conductors designed for ex-zones can be used in these facilities. The following factors should be considered when selecting an isolated conductor.<\/p>\n