GB 12158-2024 General requirements for preventing electrostatic accidents
General requirements for preventing electrostatic accidents
1 Scope
This document specifies the general requirements for electrostatic protection ought to be taken to prevent combustion and explosion caused by electrostatic discharge, electrostatic management measures, requirements for area of electrostatic hazards, protective measures for electrostatic of solid, liquid, gaseous and powdery materials, protective measures for electrostatic on human body and analysis and determination of electrostatic accidents.
This document is applicable to the design and management of area of electrostatic hazards.
Note: Reference may be made to this standard for the protection against other electrostatic hazards (such as electrostatic shock).
This document is not applicable to the prevention of electrostatic hazards of explosives, electric pyrotechnics, fireworks and firecrackers.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3684 Conveyor belts - Electrical conductivity - Specification and test method
GB 50058 Code for design of electrical installations in explosive atmospheres
GB/T 50493 Standard for design of combustible gas and toxic gas detection and alarm for petrochemical industry
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15463 and GB 6951 and the following apply.
3.1
static conductor
material with the volume resistivity less than or equal to 1 × 106Ω · m (i.e. conductivity greater than or equal to 1 × 10-6S/m) or solid surface with surface resistivity less than or equal to 1 × 107 Ω when in use
Note: The volume resistivity and surface resistivity of various materials and surfaces need to be tested in the temperature and humidity environment specified in the standard test method. If the test conditions are optional, the service conditions refer to the temperature and humidity conditions similar to those in service environment.
3.2
static sub-conductor
material with the volume resistivity greater than 1×106 Ω·m and less than 1 × 1010Ω·m (i.e. conductivity greater than 1 × 10-10S/m and less than 1 × 10-6S/m) or solid surface with surface resistivity greater than 1 × 107Ω and less than 1 × 1011 when in use
Note: The volume resistivity and surface resistivity of various materials and surfaces need to be tested in the temperature and humidity environment specified in the standard test method. If the test conditions are optional, the service conditions refer to the temperature and humidity conditions similar to those in service environment.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 General requirements 4.1 Discharge and ignition 4.2 Basic anti-static measures 5 Electrostatic management measures 5.1 General requirements 5.2 Organizational management 5.3 Documentation 5.4 Personnel 5.5 Recognition 5.6 Inspection 5.7 Sign and marking 6 Area of electrostatic hazards 6.1 Classification of area of electrostatic hazards 6.2 Electrostatic discharge ignition limit 6.3 Safety management boundaries of electrified objects 7 Protective measures for solid materials 8 Protective measures for liquid materials 8.1 Filling and sampling 8.2 Stir, mix and blend 8.3 Purging and cleaning 8.4 Requirements for antistatic operation of tank trucks 8.5 Antistatic operation requirements for tankers and ships 8.6 Antistatic requirements for aircraft refueling 8.7 Antistatic requirements for filling oil tank 8.8 Antistatic requirement for pipeline 9 Electrostatic protective measures for gaseous and powdery materials 10 Electrostatic protective measures on human body 11 Analysis and determination of electrostatic accidents Annex A (Informative) Electrostatic electrification polarity series of common materials Annex B (Normative) Fire hazard classification of liquid petroleum products Annex C (Informative) Relation between electrified potential of human body and degree of electrostatic shock Bibliography
