�1���� Scope and purpose
�2���� References
�3���� Definitions
�4���� Abbreviations and acronyms�������������
�5���� Need of protection
�6���� External area�����������
������� 6.1���� Lightning protection system (LPS)�������
������� 6.2���� Bonding in the tower
������� 6.3���� Earthing����������
������� 6.4���� Power meter station�
�7���� Equipment building���������������
������� 7.1���� Feeder and lighting cables������
������� 7.2���� Power conductors������
������� 7.3���� Telecommunication conductors�����������
������� 7.4���� Earthing and bonding of metallic elements�����
�8���� Protection of RBS equipment�����������
������� 8.1���� Inductive voltage drop across the SPD connecting leads������������
������� 8.2���� Voltage induced in the internal cabling��������������
Annex A � Shielding factor (β) of cable trays����
Annex B � Shielding factor (η) of building walls����
Annex C � Example of earthing and bonding configuration inside an RBS����
Appendix I � Results of tests with rocket-triggered lightning on a radio base
station����
������� I.1���� Introduction��
������� I.2���� Description of the test site�������
������� I.3���� Recordings of the lightning current������
������� I.4���� Shielding factor of tower and feeder tray����������
������� I.5���� Bonding the feeder to the tower at ground
level������������
������� I.6���� Current flowing through service conductors�����
������� I.7���� Inductive voltage drop in the SPD connecting leads������
Bibliography����