HUNGER_RU_author_Session 1_Block 5 Barcelona 12-15 May 2003 1 Steel Supports of the Bent Profile for Distribution Power Lines of 6-110 kV Voltages. Yury.

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HUNGER_RU_author_Session 1_Block 5 Barcelona May Steel Supports of the Bent Profile for Distribution Power Lines of kV Voltages. Yury R. HUNGER A. A. Zevin Russia

HUNGER_RU_author_Session 1_Block 5 Barcelona May Tower and pole supports AdvantagesDisadvantages Tower 1. Low weight. 2. Easy to produce. 3. Easy to climb. 4. No air-tightness. 1. Big sections. 2. Four foundations. 3. Hard to erect. 4. Hart to transport. Pole 1. Narrow base. 2. One foundation. 3. Dynamic flexibility. 4. Easy to transport. 5. Easy to erect. 1. High weight. 2. Air-tightness. 3. Unclimbable. 4. Hard to produce.

HUNGER_RU_author_Session 1_Block 5 Barcelona May The support for OHL 6-10 kV Item (per km) Conc rete ourDifference (%) Span (m) Number of supports Supports’ weight (t) Foundations’ weight (t) Total weight (t) Ground work volume (m3) Railroad transportation (number of cars) Trailer transportation (number of routes)

HUNGER_RU_author_Session 1_Block 5 Barcelona May The support for OHL kV Item (per km) towerourDiffer ence (%) Number of supports Supports’ weight (t) Foundations’ weight (t) Total weight (t) Ground work volume (m3) Railroad transportation (number of cars) Trailer transportation (number of routes)

HUNGER_RU_author_Session 1_Block 5 Barcelona May Conclusions The new types of supports for OHL of kV: -are designed; -combine the advantages of tower and pole supports; -have better characteristics than all existing supports.