CONTENTS

�1���� Scope�
�2���� References
�3���� Definitions
�4���� Abbreviations�
�5���� Reference configuration�
�6���� Protective measures�������
������� 6.1���� Inherent protection
������� 6.2���� Primary protection
������� 6.3���� Bonding, earthing and shielding���
�7���� Expected surges due to lightning
������� 7.1���� Direct lightning flashes to a structure (source of damage S1): Lightning current flowing through telecommunication or signalling lines entering the structure (exchange or customer's building or remote site)����
������� 7.2���� Lightning flashes near, or to, a structure (source of damage S1 or S2): Induced surges in telecommunication or signalling lines inside the structure (exchange or customer's building or remote site)����
������� 7.3���� Direct lightning to the telecommunication or signalling lines�������
������� 7.4���� Lightning flashes near telecommunication lines���
Annex A � Induced surges inside the structure due to lightning near, or to, the structure����
������� A.1���� General�
������� A.2���� Lightning near the structure����������
������� A.3���� Lightning to the structure�
Annex B � Induced surges on telecommunication lines due to lightning near the line: Perfectly conducting soil����
Appendix I � Induced surges inside the structure due to lightning near, or to, the structure: Experimental setup and results����
������� I.1���� �� Introduction��������
������� I.2���� �� Theoretical model����������
������� I.3���� �� Experimental test site and test set-up������
BIBLIOGRAPHY���� �����