H05F STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
Introduced: September 1968
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- Subclass:
- STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
Description
H05F covers electric phenomena arising from static charge accumulation and natural electrical processes. This includes electrostatic generation, control, and application technologies; electrostatic discharge management; and phenomena such as atmospheric electricity, lightning, and bioelectricity. The classification encompasses both harmful effects (e.g., electrostatic damage prevention in manufacturing) and beneficial applications (e.g., electrostatic printing, precipitation, and separation processes). Adjacent classes H05A–H05E address other non-standard electrical techniques, while H05G covers electromagnetic disturbances and radio interference.
Scope Notes
Glossary: corona discharge or brush discharge corona discharge brush discharge discharge from a conductor when the potential difference between it and its surroundings exceeds a certain value but is not enough to cause a spark or an arc. spark gaps spark gap enclosed or non-enclosed discharge devices having cold electrodes and used exclusively to discharge a quantity of electrical energy in small time duration. coupling devices coupling device devices having two or more parts specially adapted so as to be capable of ready and repeated physical engagement or disengagement, without the use of a tool for the purpose or establishing or breaking an electrical path. electrostatic charge, static electricity electrostatic charge static electricity electrostatic charges The expressions "electrostatic charge" and "static electricity" are used as synonyms for the electric charge at rest on the surface of an insulator or insulated body. | Limiting references: Installations of lightning conductors; Fastening thereof to supporting structure | Application references: Specific applications of methods or arrangements for preventing the formation of static electricity or for carrying off these charges after their formation. For example: . Garments protecting against electric shocks or static electricity Footwear with earthing or grounding means Carrying off electrostatic charges from living beings Electric elements specially adapted for carrying off electrostatic charges from vehicles Static discharge and lightning protection for aircraft Arrangements in large containers Protective earth or shield arrangements on coupling devices Devices providing for corona discharge Screening of printed circuits or components thereof against electric or magnetic fields Structural protection against electrostatic charges or discharges for semiconductor devices
Related Keywords
3 direct subcodes
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