ERICO Practical Guide to Electrical Grounding - Manual (Page 43)

35 Chapter 2: Building Lightning Protection
Fig. 2-20
Protection must be provided to the conductor in
areas where physical damage or displacement
may occur. PVC conduit is the preferred protector.
Plastic Conduit
Protection
Fig. 2-21
Fasteners for either the conductor or the conduit
must not encircle the conduit or conductor if made
of a ferrous material. The fastener must be of a
material compatible with the item fastened.
Steel Fastener
Must Not Encircle Conduit,
OK For Non Ferrous
Fastener.
Fastener Material
Must Be Compatable
With Conduit Material.
Bond Roof Flashing
To Lightning Protection
System.
Horizontal Beam
Roof
Typical Installation
Jumper Bond Between
Horizontal Beam And Column.
Column Exterior Wall
3'-0"
Grade
Typical Installation
Weld Bond At Column Base.
First Floor
2'-0"
Typical Down Conductor
Connection At Column Base
Bonding Jumper
24" Min.
Air Terminal
At Mechanical Equipment
Note:
Provide A Jumper At All
Bolted Horizontal Beam
At All Exterior Wall Columns.
Fig. 2-19
Grounding Book 4/14/99 10/5/99 6:01 PM Page 35 (Black plate)