Recommendations of GCC CIGRE 9th Annual Seminar

Power System insulation  & Coordination

(Abu-Dhabi 28-29 October 1998)



1- Insulation coordination studies are essential in order to achieve optimum reliable systems.



2- Substation equipment should have been fully typed tested to the relevant latest IEC Standards



3- In future spark gaps and arcing horns to be discouraged for usage as element s for over voltage protection in substations.



4- It is strongly recommended to use reliable and economic metal oxide surge arrestors.




5- Polymeric (silicon rubber) insulators up to now seem optimal for the GCC countries, however still more exchange of experience regarding the long-term performance is required.



6- Modern analysis techniques should be used for system studies regarding over voltage protection of air insulated switchgear (AIS) and gas insulated switchgear (GIS) substations.

Donor Members

Oman Electricity Transmission Co.

Eng. Thani Bin Mohammed Al Khusaibi


Ministry of Energy Electricity & Water UAE

Eng. Fatima Al Shamsi

United Arab Emirates

Oman Cables Industry

Mr. Mahdi Abdelkhalek


GCC Interconnection Authority (GCCIA)

Eng. Ahmed Ali Al Ebrahim

Saudi Arabia

Energoprojekt Entel Ltd

Mr. Momcilo Mrvic


Collective Members

Al Ahleia Switchgear Co.


Bahra cables Company

Saudi Arabia

Mazoon Electricity Company


Al-Gihaz CO. LTD

Saudi Arabia