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Lightning Damage to Services

In this article, I have listed the possible damage that lightning strike could impart into structures. In addition to this, lightning could likewise disrupt services.

IEC 62305-1 provides a list of possible disruptions to services. In gas pipelines, lightning could lead to explosions. Proper lightning protection is necessary to prevent any possibility of disruptions or worst damages to public services.

Table 2 - Effects of lightning on typical services
Type of service Effects of lightning
Telecommunication line Mechanical damage to the line, melting of screens and conductors, breakdown of insulation of cable and equipment leading to a primary failure with immediate loss of service
Secondary failures on the optical fiber cables with damage to the cable but without loss of service
Power lines Damages to insulators of low voltage overhead line, puncturing of insulation of cable line, breakdown of insulation of line equipment and of transformers, with consequential loss of service
Water pipes Damages to electrical and electronic control equipment likely to cause loss of service
Gas pipes
Fuel pipes
Puncturing of non-metallic flange gaskets likely to cause fire and/or explosion.
Damage to electrical and electronic control equipment likely to cause loss of service

Source: IEC 623-5 Protection against lightning – Part 1: General principles

A Filipino Engineer, Registered Professional Engineer of Queensland (RPEQ) - Australia, and Professional Electrical Engineer (PEE - 1st Place April 1991) - Philippines with extensive experience in concept selection, front-end engineering, HV & LV detail design, construction, and commissioning of Hazardous and Non-Hazardous Area electrical installations in water and wastewater pipeline and pumping facilities, offshore platforms, hydrocarbon process plants and pipelines including related facilities. Hazardous area classification and design certification (UEENEEM015B, UEENEEM016B, UEENEEM017B).

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