500 kV overhead Transmission Line – Project (Sidi Krir- Nubaria- Cairo)

The scope of work of the contract package of the 500kV single circuit for Cairo 500kV/Nubaria/Sidi Krir include Self supported lattice towers for single circuit in horizontal formation.  The line is divided into two parts as follows:

Cairo-Nubaria 500 KV OHTL

Approximately 100 km route length of a single-circuit, three-bundles conductor, overhead transmission line from Cairo 500 kV substation to Nubaria Power Station.

An insulation level of 40 mm/kV was applied for this part of the line.  490/65 ACSR conductors (bundle of three per phase) were used for this part of the line.  Galvanized steel shield wire of 108 mm² cross sectional area was used as the first earth wire while OPGW are used as a second shield wire and communication  purposes.

Sidi Krir-Nubaria 500 kV OHTL

Approximately 130 km route length of a single-circuit, three-bundle conductor, overhead transmission line from Sidi Krir 500 kV substation to Nubaria Power Station.

An insulation level of 40 mm/kV was applied for this part of the line, except for the last 30 km of the line (Sidi Krir direction) where 45 mm/kV insulation  level was applied.  490/65 ACSR conductors (bundle of three per phase) was used for this part of the line, except for the last 30 km of the line (Sidi Krir direction), 506 mm², AAAC (bundle of three per phase) was used. Galvanized steel shield wire of cross sectional area of 108 mm²   was used,  except for the last 30 km  of the line (Sidi Krir direction), 94.1 mm² AACSR was used as the first  earth wire  while  OPGW  was  used  as  a  second  shield wire  and communication purposes for the whole line.

500 kV – Suez Canal Crossing Towers

Completed
Assist the Owner for specific activities such as;

• Evaluation of piling foundation
• Manage and schedule for the foundation and tower erection