Explanation for Preparation
1. Subject Content and Application Scope
1.1 Subject content
This Atlas is a revision of and replaces the national building standard design 86D563 Installation of Earth Device, with added scheme contents such as various earthing modes for transformer and diesel generator, PE mains laying along cable bridge, use of metal water supply pipe and steel bar in reinforced concrete as earth electrode for PE line.
1.2 Application scope
This Atlas is applicable to construction and installation of protective earthing, working earthing, lightning protection earthing installations for general industries and civil buildings.
2. Preparation Basis
2.1 National standards of the People's Republic of China
Electrical Installations of Buildings—Part 5: Selection and Erection of Electrical Equipment—Chapter 54: Earthing Arrangements and Protective Conductors GB 16895.3-1997
idt IEC 60364-5-54:1980
Electrical Installations of Buildings—Part 7: Requirements for Special Installations or Locations—Section 707: Earthing Requirements for the Electrical Installation of Data Processing Equipment GB16895.9-2000
idt IEC 60364-7-707:1984
Types and Safety Technical Requirements of System Earthing GB14050-93
Code for Construction and Acceptance of Earthing Connection Electric Equipment Installation Engineering GB50169-92
Code of Acceptance of Construction Quality of Electrical Installation in Building GB50303-2002
2.2 Professional standards of the People's Republic of China
Earthing for AC Electrical Installations DL/T 621-1997
Code for the Design of Static Electricity Earthing for Petrochemical Industry SH3097-2000
3. Terminology
3.1 working earthing, system earthing
the earthing (e.g. neutral point direct earthing or earthing with other installations) required for operation, in the electrical devices of power system
3.2 protective earthing
the earthing for preventing metal enclosure of electrical apparatus, framework of power distribution device, line pole/tower, etc. which may be possibly live due to damaged insulation, from endangering the personnel and equipment safety
3.3 lightning protection earthing
the earthing set for discharging the lightning current from the lightning protection installation (e.g. lightning rod, lightning conductor and lightning arrester) to the ground
3.4 electrostatic earthing
the earthing set for preventing the static electricity from endangering electronic information system, flammable oil, natural gas tank, petrochemical plant and pipelines
3.5 earth electrode
the metallic conductor and conductive module that is embedded in and directly contacts the ground. The metal structure, metal well casing, foundation of reinforced concrete building (structure), metal pipeline and equipment which is used as earth electrode is termed as natural earth electrode.
Contents
Title of the drawing Page
Contents
Explanation for Preparation
Schematic Block Diagram of Earthing Arrangement for Protection
Buried Installation of Rod-type Earth Electrode
Buried Installation of Pipe-type Earth Electrode
Buried Installation of Angle Steel Earth Electrode
Buried Installation of Strip-type Earth Electrode
Buried Installation of Plate-type Earth Electrode
Installation of Artificial Earth Electrode Buried in Foundation (I)
Installation of Artificial Earth Electrode Buried in Foundation (II)
Installation Using the Steel Bar in Reinforced Concrete Foundation as Earth Electrode (I)
Installation Using the Steel Bar in Reinforced Concrete Foundation as Earth Electrode (II)
Installation Using the Steel Bar in Reinforced Concrete Foundation as Earth Electrode (III)
Title of the drawing Page
Connection of Earth Wire (I)
Connection of Earth Wire (II)
Connection of Earth Wire (III)
Installation of Earth Wire on Brick-wood Structure
Installation of Earth Wire onto Reinforced Concrete
Installation of Earth Wire in Plaster Layer
Installation of Earth Wire Using Insulated Conductor
Installation of Earth Wire along Cable Bridge Using Copper Stranded Wire
Installation of Earth Wire along Cable Bridge Using Rectangular Conductor
Installation of Earth Wire along Cable Trench Wall
Installation of Earth Wire Through Door and Earthing Branch
Title of the drawing Page
Installation of Earth Wire through Expansion Joint/Settlement Joint
Installation of Earth Wire on Light Steel Joist Partition
Installation of Earth Wire through Wall and Floor Slab
Installation Using Protective Metal Sleeve of Conductor as Earth Wire
Installation Using Metal Cable Bridge as Earth Wire
Installation Using Crane Steel Rail as Earth Wire
Earthing Installation of Metal Pipe in Water Supply System
Connection of Indoor and Outdoor Earth Wires
Installation of Concealed Earth Conductor and Concealed Check Point (I)
Installation of Concealed Earth Conductor and Concealed Check Point (II)
Installation of Earthing Connection Plate Embedded in Reinforced Concrete Column and Wall
Installation of Temporary Wiring Post (I)
Installation of Temporary Wiring Post (II)
Title of the drawing Page
Installation of Main Earthing Terminal Plate (I)
Installation of Main Earthing Terminal Plate (II)
Diagram for Earthing Installation of Service Drop for TN System Power Supply
Diagram for Earthing Mode of IT Diesel Generator System
Diagram for Earthing Mode of TT/TN Diesel Generator System
Transformer Neutral Point Earthing Installation of TN-S System
Transformer Neutral Point Earthing Installation of TN-C-S System
Transformer Neutral Point Earthing Installation of TN-C System
Transformer Neutral Point Earthing Installation of TT System
Transformer Neutral Point Earthing Installation of IT System
Example of Earthing System
Earthing Installation of Exposed Conductive Part of the Equipment
Earthing Installation of Electrostatic Floor
Title of the drawing Page
Installation of Electrostatic Jumper Wire for Pipe Fittings
Electrostatic Earthing Installation of Air Duct
Installation of Electrostatic Jumper Wire at Rail End of Oil Loading/Unloading Station
Electrostatic Earthing Installation of Railway Rail in Oil Loading/Unloading Station
Earthing Installation of Train Tanker
Earthing Installation of Tanker
Installation of Bar/Pipe-type and Angle Steel Earth Electrode Using Resistance Reducing Agent
Installation of Plate-type Earth Electrode Using Resistance Reducing Agent
Installation of Underground Earth Resistance at Inspection Point (I)
Installation of Underground Earth Resistance at Inspection Point (II)
Installation of Underground Earth Resistance at Inspection Point (III)
Installation of Underground Earth Resistance at Inspection Point (IV)
Title of the drawing Page
Chamotte Fusion of IEA Electrolytic Ion Earthing System
Technical Specification of ZGD Earth Modules
Selection Example of ZGD Earth Modules
FD Anti-corrosive Earth Device
TBG Series of Anti-corrosive Earth Device
Table of Technical Parameters for ME(R) and LE(R) Equipotential Bonding Terminal Box
