B. CONDUCTOR CABLES:
1. Conductor cable shall interconnect all air terminals and offer a 2-
way path to ground.
2. Conductor cable shall be fastened to the roof every 3' feet.
3. Conductor cable shall ALWAYS maintain a horizontal or downward
path to ground.
C. GROUNDING:
1. Every building requires a minimum of 2 Downlead conductors to
ground.
2. Downlead conductors and grounds are to be placed an average of
every 100' around the perimeter of the building.
3. Every Downlead conductor must terminate below grade and
connect to a 10' depth driven ground rod.
4. Aluminum conductor cable CANNOT be used below grade. An
approved bi-metal connector is to be used at approximately 18"
above grade.
5. Driven ground rods are to be placed a minimum of 2' away from
the foundation.
6. Common ground is required with the electric service ground
metallic water pipe or well casing, telephone ground, and incoming
gas or propane pipe on the owners side of the meter.
D. BONDING:
1. Any metal body within 6' of the conductor cable must be bonded.
This would include, but not limited to vent pipes, roof vents,
antennas, gutters, downspouts.
E. SURGE PROTECTION:
1. Secondary surge arresters must be installed on:
• Incoming electric service panel
• Incoming telephone service
• TV antenna lead-in wire or coax cable.
Links to Lightning Protection Guidelines
Residential Lightning Protection and Grounding
Arborist (Tree-Top) Lightning Protection and Grounding
Barn and Outdoor Structure Lightning Protection and Grounding |
