Home

Tasks

Presentations

Members

Meetings

Publications

Contact Us


	Advisory Group B2.04 Electrical Performance of Overhead Transmission Lines
	*Photo Album - Transmission Lines*

Spain
Ice Buildup	400kv Crossing	220kv Pole	Old-time Stringing	Upgraded 400kv line

New York State, USA

These pictures show evidence of corrosion of both newer (1960's) steel pole and older (1940's) steel lattice structures.				Examples of corrosion in smaller-size overhead conductors


Steel pole H-frame 765kv transmission line built in the 1980's with 4 conductor bundle and 400+ meter spans.					An old (1950's) 230kv double circuit structure transmission line with only one circuit conductored and close-up of "arcing horns" on strain insulators.

Finland

110 kV line Honkaisenranta-Hirvensalo Suspension (tangent & guyed angle) and dead end tower types Weight range 3100...4300 kg Main structural element 508 CHS	110 kV lines with covered conductors Mätäkivi - Sula line constructed in 1996 Arc-shaped steel tube poles Conductor SAX 355 Small phase spacings - reduced EM-fields				110kV lines with covered conductors Forest SAX-line Constructed in 2000 Wooden poles Conductor SAX 185 Narrow right-of-wat Small phase spacings-reduced EM fields

110 kV line with landscape towers in Säkylä	2 x 400 kV guyed suspension towers in Länsisalmi-Kymi line Overall height range 42.2...60.2 m Weight range 26000-35700 kg


The newest power line in Finland. 110 kV line Salmisaari - Meilahti located in the center of Helsinki. Double circuit line with landscape towers