1 General Provisions
1.0.1 This code is formulated with the view to ensuring the construction quality of grounding connection of electric equipment installation engineering, improving the engineering construction technical level and ensuring the safe operation of grounding connection.
1.0.2 This code is applicable to the construction and acceptance of grounding connection of electric equipment installation engineering, but not to the construction and acceptance of HVDC transmission grounding electrode.
1.0.3 In addition to the requirements stipulated in this code, the construction and acceptance of grounding connection shall also meet the requirements of current related standards of the nation.
2 Terms
2.0.1 grounding electrode
the metal conductor buried in the ground and contacting with the ground directly is named as the grounding electrode, which consists of horizontal grounding electrode and vertical grounding electrode
2.0.2 natural grounding electrode
various metal members, metal well casing, foundation of reinforced concrete building, metal pipe and equipment, etc. in direct contact with the ground and capable of being used for grounding
2.0.3 air-termination system
the generic term of devices receiving lighting strike, including lightning rod, lightning strip, lightning conductor, lightning network as well as metal roof and metal member, etc.
2.0.4 grounding conductor
metal conductor used for the connection of grounding terminal of electric equipment and air-termination system with grounding electrode and carrying no current under normal conditions
2.0.5 grounding connection
the generic name of grounding electrode and grounding conductor
2.0.6 grounded
connect the electric equipment, facility, overvoltage protection equipment of power system or building with grounding electrode by grounding conductor
1 General Provisions
2 Terms
3 Basic Requirements
4 Grounding of Electric Equipment
4.1 Selection of Grounding Connection
4.2 Laying of Grounding Connection
4.3 Join of Grounding Electrode (Conductor)
4.4 Reducing Resistance of Grounding Connection
4.5 Grounding of Wind Turbines and Photovoltaic Power Station
4.6 Grounding of Air-termination System
4.7 Grounding of Transmission Poles and Towers
4.8 Grounding of Main Control Building, Dispatching Building and Communication Station
4.9 Grounding of Relaying Protection and Security Automatic Equipment
4.10 Grounding of Metal Jacket of Power Cable
4.11 Grounding of Distribution Electric Equipment
4.12 Grounding of Structures Electric Equipment
4.13 Grounding of Portable and Mobile Appliances
4.14 Grounding against Lightning Induction and Static Electricity
5 Engineering Succession and Acceptance
Explanation of Wording in This Code
Lists of Quoted Standards
1 General Provisions
1.0.1 This code is formulated with the view to ensuring the construction quality of grounding connection of electric equipment installation engineering, improving the engineering construction technical level and ensuring the safe operation of grounding connection.
1.0.2 This code is applicable to the construction and acceptance of grounding connection of electric equipment installation engineering, but not to the construction and acceptance of HVDC transmission grounding electrode.
1.0.3 In addition to the requirements stipulated in this code, the construction and acceptance of grounding connection shall also meet the requirements of current related standards of the nation.
2 Terms
2.0.1 grounding electrode
the metal conductor buried in the ground and contacting with the ground directly is named as the grounding electrode, which consists of horizontal grounding electrode and vertical grounding electrode
2.0.2 natural grounding electrode
various metal members, metal well casing, foundation of reinforced concrete building, metal pipe and equipment, etc. in direct contact with the ground and capable of being used for grounding
2.0.3 air-termination system
the generic term of devices receiving lighting strike, including lightning rod, lightning strip, lightning conductor, lightning network as well as metal roof and metal member, etc.
2.0.4 grounding conductor
metal conductor used for the connection of grounding terminal of electric equipment and air-termination system with grounding electrode and carrying no current under normal conditions
2.0.5 grounding connection
the generic name of grounding electrode and grounding conductor
2.0.6 grounded
connect the electric equipment, facility, overvoltage protection equipment of power system or building with grounding electrode by grounding conductor
Contents of GB 50169-2016
1 General Provisions
2 Terms
3 Basic Requirements
4 Grounding of Electric Equipment
4.1 Selection of Grounding Connection
4.2 Laying of Grounding Connection
4.3 Join of Grounding Electrode (Conductor)
4.4 Reducing Resistance of Grounding Connection
4.5 Grounding of Wind Turbines and Photovoltaic Power Station
4.6 Grounding of Air-termination System
4.7 Grounding of Transmission Poles and Towers
4.8 Grounding of Main Control Building, Dispatching Building and Communication Station
4.9 Grounding of Relaying Protection and Security Automatic Equipment
4.10 Grounding of Metal Jacket of Power Cable
4.11 Grounding of Distribution Electric Equipment
4.12 Grounding of Structures Electric Equipment
4.13 Grounding of Portable and Mobile Appliances
4.14 Grounding against Lightning Induction and Static Electricity
5 Engineering Succession and Acceptance
Explanation of Wording in This Code
Lists of Quoted Standards
