This part of the A300 standards applies to installation and maintenance of Lightning Protection Systems in Trees. Part 4 Lightning Protection Systems addresses:
- Tools and equipment
- Connectors and Fasteners
- Ground terminals
- Installation practices
A300 Part 4 Lightning Protection Systems standards recognize three basic ground systems:
- Single ground rod: A ground terminal composed of one ground rod.
- Multiple ground system: A ground terminal composed of two or more ground rods or copper ground plates.
- Horizontal ground system: A ground terminal composed of ground rod(s) or copper ground plate(s) that are not fully driven or installed in the ground due to site conditions.