STALLCUP ELECTRICAL EDUCATION

Grounding Electrical Systems for Safety

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2023 Grounding Electrical Systems for Safety
Publication Instructor Series

Stallcup's "Grounding Electrical Systems for Safety" publication stands as an indispensable guide in the realm of electrical engineering and safety practices. Grounding is a fundamental aspect of electrical systems, crucial for safeguarding against hazards such as electrical shocks and fires. This meticulously crafted resource offers in-depth insights into the principles, standards, and best practices governing grounding techniques across various applications.

Engineers, electricians, and safety professionals rely on Stallcup's authoritative content to understand the complexities of grounding systems comprehensively. From foundational concepts to advanced strategies for ensuring compliance with current codes and standards, each chapter equips readers with practical knowledge and actionable guidelines. Whether designing new installations or maintaining existing systems, Stallcup's "Grounding Electrical Systems for Safety" provides the essential tools to enhance both safety and operational efficiency in electrical environments.

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2023 Grounding Electrical Systems for Safety Publication
Table of Contents - Extensive Coverage

General Requirements

Electrical System Grounding
Grounding of Electrical Equipment
Bonding of Electrical Equipment
Effective Ground-Fault Current Path
Grounding Electrical Equipment
Objectionable Current Over Grounding Conductors Arrangement to Prevent Objectionable Current
Alterations to Stop Objectionable Current
Temporary Currents Not Classified as Objectionable Current Limitations to Permissible Alternations
Isolation of Objectionable Direct Current Ground Currents Connection of Grounding and Bonding Equipment Protection of Grounding Clamps and Fittings

System Grounding

AC Systems to be Grounded
AC Systems of 50 Volts to 1000 Volts Not Required to be Grounded Circuits Not to be Grounded
System Grounding Connections
Outdoor Transformer - General
Dual Fed Services
Load-Side Grounding Connections
Calculating Fault Current
Grounded Conductor Brought to Service Equipment
Grounding Electrode Conductor
Ungrounded System Grounding Connections
Conductor to be Grounded AC Systems
Main Bonding Jumper and System Bonding Jumper
Grounding Separately Derived AC Systems
Buildings or Structures Supplied by a Feeder(s) or Branch Circuit(s) Portable Generators
Vehicle-Mounted Generators
Grounding Electrode Conductor Connection Location - High Impedance

Grounding Electrode System and Grounding Electrode Conductor

Grounding Electrode System
Other Local Metal Underground Systems or Structures
Metal Underground Water Pipe
Metal Frame of the Building or Structure
Concrete-Encased Electrode
Ground Ring
Rod, Pipe, and Plate Electrodes
Supplemental Electrode Required
Supplemental Electrode
Metal Underground Water Pipe - Installation
Rod and Pipe Electrodes - Installation
Auxiliary Grounding Electrodes
Soil Treatment
Use of Strike Termination Devices
Use of Air Terminals
Grounding Electrode Conductor Material
Grounding Electrode Conductor Installation
Securing and Protection Against Physical Damage
Grounding Electrode Conductor - Continuous
Grounding Electrode Conductor - Splices in Busbars
Services With Multiple Disconnecting Means Enclosures
Enclosures for Grounding Electrode Conductors
Accessibility
Effective Grounding Path
Metallic Water Pipe and Structural Metal - Splicing
Grounding Electrode Connection
Methods of Grounding and Bonding Conductor Connection to Electrodes

Bonding

Bonding of Services
Method of Bonding at the Service
Grounded Service Conductor
Threaded Connections
Threadless Couplings and Connectors
Other Listed Devices
Bonding for Communications Systems
Bonding Other Enclosures - General
Isolated Grounding Circuits
Bonding for Over 250 Volts
Eccentric or Concentric Knockouts
Size for Supply Conductors in a Single Raceway or Cable Metal Water Pipe - General
Metal Water Pipe - Buildings of Multiple Occupancy
Metal Water Pipe - Multiple Buildings or Structures
Other Metal Piping
Structural Metal
Metal Water Piping - Separately Derived Systems

Equipment Grounding and Equipment Grounding Conductors

Types of Equipment Grounding Conductors
Conductors Larger Than 6 AWG
Use of Equipment Grounding Conductors
Sizing of Equipment Grounding Conductors
Sizing of Equipment Grounding Conductors - General
Sizing of Equipment Grounding Conductors - Increased in Size
Sizing of Equipment Grounding Conductors - Motor Circuits

Methods of Equipment Grounding Conductor Connections

For Grounded Systems
For Ungrounded Systems
Non-grounding Receptacle Replacement or Branch Circuit Extensions
Equipment Fastened in Place or Connected by Permanent Wiring Methods
Equipment Grounding Conductor Types
With Circuit Conductors
By Means of an Equipment Grounding Conductor
Frames or Ranges and Clothes Dryers
Supply-Side Equipment
Load-Side Equipment
Surface-Mounted Box
Contact Devices or Yokes
Floor Boxes
Isolated Receptacles
Continuity and Attachment of Equipment Grounding Conductors to Boxes

Computer Grounding

Computer Grounding Using a Spacer
Service Equipment Supplying Computer Separately Derived System Supplying Computer

Swimming Pools, Fountains, and Similar Locations

Equipotential Bonding
Grounding - Types of Wiring Methods Bonding - Hot Tubs
Hydromassage Bathtubs

Other Types of Grounding

Grounding Antenna Systems Per NEC and UL
Metal Fences
Metal Structures
GFCI Protection for Receptacles on 15 Kw Or Smaller Portable Generators Portable Generators 15 kW or Less

Lightning Protection

Strike Termination Devices
Air Terminal Height
Air Terminal Support
Grounding and Bonding Conductors Number of Down Conductors Grounding Electrodes
Counterpoise Electrodes Conductor Bends
Roof Conductors One-Way Path
Dead Ends
“U” or “V” Pockets
Down Conductors Concealed
Common Grounding
Bonding of Metal Bodies
Structural Steel Systems
Lightning Protection for Reinforced Concrete Buildings
Other Structures
Lightning Protection Systems for Structural Steel Buildings
Lightning Protection for Pre-Cast Concrete Buildings
Lightning Protection for Foundation and Slab Built on Solid Rock
Lightning Protection for Information Technology Equipment
Use of Arresters and Filters
Primary Protection Belongs Outside the Information Technology Equipment Room Traveling Waves - IEEE Green Book
Gap Protectors Inside Transformers
Residual Surge Protection in Power and Communications Lines
Locating Arresters at Service Equipment
Protective Device Locations
Bonding Pipes and Roof Equipment
Metal Objects Within 6 ft of Lightning Conductors
Static Electricity
Conductivity of Floor Surfaces
Carpeting With Low Propensity to Static Electricity
Desensitizing Electronic Circuits
Static Discharge Scenario
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