Leica mojo3D, Safety Directions
161
Lightning conductors
Suggestion for design of a lightning conductor for a GNSS system:
1. On non-metallic structures. Protection by air terminals is recommended. An air
terminal is a pointed solid or tubular rod of conducting material with proper
mounting and connection to a conductor. The position of four air terminals
should be uniformly distributed around the antenna at a distance equal to the
height of the air terminal. The air terminal diameter should be 12 mm for copper
or 15 mm for aluminium. The height of the air terminals should be 25 cm to 50
cm. All air terminals should be connected to the down conductors. The diameter
of the air terminal should be kept to a minimum to reduce GNSS signal shading.
2. On metallic structures. Protection is as described for non-metallic structures, but
the air terminals can be connected directly to the conducting structure without
the need for down conductors.
Summary of Contents for mojo3D
Page 1: ...Leica User Manual mojo3D Version 2 0 English ...
Page 11: ...Leica mojo3D Table of Contents 11 ...
Page 19: ...Leica mojo3D System Overview 19 ...
Page 31: ...Leica mojo3D System Installation 31 ...
Page 46: ...46 Leica mojo3D Running the mojo3D for the First Time Flyout Menu Example ...
Page 75: ...Leica mojo3D Setting Guidance Types 75 5 Tap to return to the main navigation screen ...
Page 78: ...78 Leica mojo3D Setting Guidance Types 7 Tap to return to the main navigation screen ...
Page 85: ...Leica mojo3D Setting Guidance Types 85 ...
Page 131: ...Leica mojo3D Field Boundary 131 ...
Page 149: ...Leica mojo3D Virtual Wrench Remote Service 149 ...
Page 168: ...168 Leica mojo3D Safety Directions 12 9 Labelling Labelling mojo3D CDMA unit mojo3D_011 ...
Page 169: ...Leica mojo3D Safety Directions 169 Labelling mojo3D HSDPA unit mojo3D_012 ...
Page 171: ...Leica mojo3D Safety Directions 171 ...
Page 199: ...Leica mojo3D Technical Data 199 ...
Page 267: ...Leica mojo3D GNU General Public License 267 ...