© 2012 DEHN + SÖHNE / protected by ISO Site visits to Botas Lightning and Surge Protection 1

© 2012 DEHN + SÖHNE / protected by ISO BOTAS LPG Terminal: Tekridag Crude Oil Terminal: Ceyhan Gas compressor station: Sungurlu Lightning and Surge Protection 2

© 2012 DEHN + SÖHNE / protected by ISO BOTAS What have we seen LPG Termial No damage caused by lightning during the last years A few damage in the public housing due to switching surges Earthing arrangement of the whole site in good conditions Almost no SPDs in use for protection of power supply and data / IT systems Some buildings do not have external protection system Some earthing conductor / connections are painted / corroded Pipeline insolated flange near to water pump may not be connected to equipotential bonding Only one down conductor from test clamp to ground at the truck filling station and high earth resistance Lightning and Surge Protection 3

© 2012 DEHN + SÖHNE / protected by ISO BOTAS What have we seen Crude oil terminal Damage due to lightning of the telecom tower, Antenna and SPDs are destroyed. SPDs did not fit to application and installation was not correct. Spark gaps for insulating flanges are missing in upcoming tender documents Radioactive ESE terminals are still in use No SPDs for data / IT, except telephone lines SPDs are in use (SOLA, Mexico) which are not according to IEC (TS) Lightning and Surge Protection 4

© 2012 DEHN + SÖHNE / protected by ISO BOTAS What have we seen Compressor station Good lightning protection and earthing system But no SPDs for power, data, IT Interference between earthing and cathodic protection cable length of spark gap for insulating flange is to big Lightning and Surge Protection 5

© 2012 DEHN + SÖHNE / protected by ISO BOTAS What we suggest LPG Terminal Use of SPDs, at least Type 2 in public houses Modify earthing connection / down conductor as mentioned before Replacement of painted / corroded clamps Crude oil terminal Equip Telecom tower with up to date SPDs, installation according to instruction, SPD shall have selectivity to main fuse of the telecom panel. Replace ESE terminal with latest models Lightning and Surge Protection 6

© 2012 DEHN + SÖHNE / protected by ISO BOTAS What we suggest Compressor station Spark Gaps at insulating flanges should be installed direct to the flange with a cable connection as short as possible Cathodic protection system -Pipe should be equipped with insulation flange before entering / laving the soil! In general SPDs for power / data / IT shall be considered as it is required by IEC / TS Electrical and Electronic Equipment is under threat of damage and hence loss of control of the sites is possible. Lightning and Surge Protection 7

© 2012 DEHN + SÖHNE / protected by ISO BOTAS What we suggest In gerneral SPDs for power / data / IT shall be considered in BOTAS specificatins. Spark Gaps should be considered for insulating flanges for upcoming tenders Lightning and Surge Protection 8