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Supplement S1400CW Page 0-1 Table Of Contents
Supplement Guide S1400CW
SITE CONSIDERATIONS FOR EQUIPMENT
INSTALLATION, GROUNDING & WIRING
TABLE OF CONTENTS
SECTION TITLE PAGE #
Section 1 - INTRODUCTION
1.1 GENERAL INTRODUCTION .......................................................................................1-1
1.2 MAJOR TOPICS.............................................................................................................1-1
Section 2 - PROTECTION
2.1 PROTECTING INSTRUMENT SYSTEMS...................................................................2-1
2.1.1 Quality Is Conformance To Requirements....................................................................2-1
2.2 PROTECTING EQUIPMENT & PERSONNEL...........................................................2-1
2.2.1 Considerations For The Protection of Personnel..........................................................2-2
2.2.2 Considerations For The Protection of Equipment........................................................2-2
2.3 OTHER SITE SAFETY CONSIDERATIONS...............................................................2-3
Section 3 - GROUNDING & ISOLATION
3.1 POWER & GROUND SYSTEMS...................................................................................3-1
3.2 IMPORTANCE OF GOOD GROUNDS.........................................................................3-1
3.3 EARTH GROUND CONNECTIONS.............................................................................3-1
3.3.1 Establishing a Good Earth Ground...............................................................................3-1
3.3.1.1 Soil Conditions................................................................................................................3-2
3.3.1.2 Soil Types........................................................................................................................3-2
3.3.1.3 Dry, Sandy or Rocky Soil................................................................................................3-4
3.3.2 Ground Wire Considerations. ........................................................................................3-5
3.3.3 Other Grounding Considerations. .................................................................................3-6
3.4 ISOLATING EQUIPMENT FROM THE PIPELINE...................................................3-7
3.4.1 Meter Runs Without Cathodic Protection.....................................................................3-7
3.4.2 Meter Runs With Cathodic Protection ..........................................................................3-7
Section 4 - LIGHTNING ARRESTERS & SURGE PROTECTORS
4.1 STROKES & STRIKES ..................................................................................................4-1
4.1.1 Chance of Being Struck by Lightning. ..........................................................................4-1
4.1.2 Antenna Caution ............................................................................................................4-3
4.1.3 Ground Propagation .......................................................................................................4-5
4.1.4 Tying it all Together.......................................................................................................4-5
4.1.5 Impulse Protection Summary........................................................................................4-5
4.2 USE OF LIGHTNING ARRESTERS & SURGE PROTECTORS................................4-6
Section 5 - WIRING TECHNIQUES
5.1 OVERVIEW ....................................................................................................................5-1
5.2 INSTRUMENT WIRING. ..............................................................................................5-1
5.2.1 Common Returns............................................................................................................5-1