Overview of selected ČSN groups (by classification criteria) for electrical equipment within specific voltage ranges

LVD - (low-voltage electrical equipment)

05…, 18…., 33…., 34…., 35…., 36…., 37….
05 – WELDING, SOLDERING, CUTTING OF METALS AND PLASTICS
0506-0522
0506	Welding safety
0520	Machinery and equipment, general
0522	Arc Welding
18 - INDUSTRIAL AUTOMATION
1830-1870
1830	Industrial Automation Systems
1870	Direct-acting regulators
19 - OPTICAL INSTRUMENTS, EQUIPMENT FOR CINEMATOGRAPHY AND REPROGRAPHY
1920	Lasers
33 - ELECTRICAL ENGINEERING - ELECTRICAL REGULATIONS
3301-3360
3301	Rated values and marking of items
3303	Environments for Electrical Equipment
3304	Insulation coordination
3305	Safety of electrical equipment
3306	Safety of Electrical Equipment
3321	General Installation Regulations
3322	Installation Regulations for Electrical Equipment of Machinery
3334	Electricity Consumption
3341	Radio communication equipment. Safety of radio transmitters
3350	Electrothermal equipment
3360	Fuel cell technology
34 - ELECTRICAL ENGINEERING
3404-3478
3404	Electrical Connections and Terminals
3413	Special electrical equipment
3415	Electric transport and traction equipment
3456	Testing and measurement
3470	Testing of Wires and Cables
3471	Wires and Cables in Fire Conditions
3472	Cable cores
3474	Power conductors
3475	Cords and conductors for special purposes
3476	Power cables
3477	Communication wires and cords, NF, HF, and coaxial cables
3478	LF, instrument, signal, and remote communication cables
35 - ELECTRICAL ENGINEERING
3500-35
3500	Rotating electrical machines in general
3513	Measuring, isolating, and instrument transformers
3515	Power semiconductor converters and rectifiers
3517	Thyristor drives
3518	Static switching systems
3534	Electrical two-position relays
3535	Measuring relays and protection devices
3541	Low-voltage circuit breakers
3544	Low-voltage switching and control equipment for industrial use - instrument and mounting rails
3545	Sockets and plugs
3547	Low-voltage and high-voltage fuses
3562	Electrical measuring instruments
3564	Standards, decade boxes, bridges, etc.
3565	Electrical measuring instruments, including nuclear technology
3570	Distribution boards, instrument cabinets, and assemblies
3571	Power distribution panels
3582	Capacitors
3597	Operating aids
36 - ELECTRICAL ENGINEERING
3600-3690
3600	Lighting, general
3601	Light bulbs
3602	Discharge lamps and fluorescent lamps
3603	Light source components, sockets, and holders
3605	Terminology of luminaires and ballasts
3606	Electric luminaires
3607	Safety of Electronic Flash Units
3610	Safety of household electrical appliances
3619	Electrical control devices for household use
3646	Photovoltaic components
3656	Lighting signaling equipment
3670	Electronics and radio technology in general
3672	Antennas
3677	Gas lasers and laser modulators
3679	Electromagnetic fields in the human environment
3683	Electroacoustic devices
3688	Electroacoustic measurements
3690	Information technology in general and terminology
37 - ELECTRICAL ENGINEERING - POWER ENGINEERING
3700-3715
3700	Electrical Conduit and Trays
3701	Accessories for low-voltage indoor wiring
3704	Cable trays and grates
3705	Cable clips and fasteners
3706	Connectors and clamps
3715	Terminal blocks and terminal strips