Emerson Bristol ControlWave LP Manual de instrucciones descargar pdf (Pagina 123)

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

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Emerson Bristol ControlWave LP Manual de instrucciones Pagina 123