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Living adjacent to a transmission line - Fingrid

Living adjacent to a transmission line - Fingrid

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Let’s stay on good termsAn electricity <strong>transmission</strong> <strong>line</strong> is a neighbourwhich does not wish <strong>to</strong> disturb others or be disturbed.This brochure contains information andsafety instructions, which make living <strong>adjacent</strong> <strong>to</strong>a <strong>transmission</strong> <strong>line</strong> safe and trouble-free.FINGRID HAS A RIGHT TO USE THE LINE AREAS<strong>Fingrid</strong> does not own the land areas under the<strong>transmission</strong> <strong>line</strong>s or the trees located withinthese areas. These are property of the landowner.Through expropriation, <strong>Fingrid</strong> has acquired apermanent right <strong>to</strong> use the <strong>transmission</strong> <strong>line</strong> area.This gives the company a right <strong>to</strong> for example usethe <strong>transmission</strong> <strong>line</strong> area, restrict building in thearea, clear vegetation in the area, and manageexcessively tall trees in the border zone.The company’s right and obligation <strong>to</strong> give theinstructions presented in this brochure is basedon the Electrical Safety Act and on the expropriationof the <strong>transmission</strong> <strong>line</strong> area on the basis of apermit given by the Council of State.COMPENSATION PAID TO LANDOWNERSFOR THE USE OF THE LINE AREAA lump-sum compensation determined in theexpropriation proceedings is paid for the right ofuse of the <strong>transmission</strong> <strong>line</strong> area. <strong>Fingrid</strong> does notdecide on the expropriation compensations, butthese are specified by an impartial expropriationcommittee in accordance with the act concerningexpropriation.If a landowner suffers disadvantage or damage inconjunction with the maintenance of the <strong>transmission</strong><strong>line</strong>, these cases are agreed upon with thelandowner individually in each case.20 mBorder zone10 m10 mRight of wayTransmission <strong>line</strong> areaBuilding prohibition zoneBorder zoneThe width of an 110 kV right of way is generally 26–30 m.The width of a 220 kV right of way is generally 32–38 m.The width of a 400 kV right of way is generally 36–42 m.20 mThe width of the border zone is 10 metres on both sides of the <strong>line</strong>, always a <strong>to</strong>tal of 20 metres.UNDERGROUND STRUCTURESOverhead earth wireEarth wire peakCrossarmInsula<strong>to</strong>r stringInsula<strong>to</strong>r unitPhase conduc<strong>to</strong>rHorizontal braceROBUST BUT USEFUL NEIGHBOURThe <strong>transmission</strong> <strong>line</strong> area is the area for whichThe <strong>to</strong>wer area ofFoundation4 <strong>Fingrid</strong> has expropriated a right of use. The right ofa <strong>transmission</strong> <strong>line</strong>5Ground electrodeuse imposes usage restrictions on the landowner.<strong>to</strong>wer extends over aGuy anchordistance ofThe voltage levels of <strong>transmission</strong> <strong>line</strong>s in Finland3 metres from theare 110, 220 and 400 kilovolts (kV)*. The voltageoverground <strong>to</strong>werThe <strong>to</strong>wer type shown in the picture is the mostlevel can be recognised by the length of the insula<strong>to</strong>rstring and the number of insula<strong>to</strong>r discs:supporting steel <strong>to</strong>wers without guys are alsostructures.commonly used guyed portal <strong>to</strong>wer, but so-called self-used.Voltage levelkVLength ofinsula<strong>to</strong>r stringNumber ofinsula<strong>to</strong>r discs110 approx. 1 metre 6–8220 approx. 2 metres 10–12400 approx. 4 metres 18–21*1 kV = 1,000 volts (V)3 m3 m 3 m3 mCENTRE LINE OF TRANSMISSION LINELegGuyNumber plateA guyed two-legged portal <strong>to</strong>wer.CENTRE LINE OF TRANSMISSION LINE3 m3 m3 m 3 mA single-legged steel lattice<strong>to</strong>wer without guys.

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