Guidelines on the protection of 6-1150 kV electrical circuits against lightning and internal overvoltages. All 3 parts
Document status: Active
Freight slings for general use on a textile basis. Requirements for the device and safe operation
Document status: Active
Slings for loading and general purposes. Requirements for arrangement and safe operation
Document status: Active
Safety valves. Selection, installation and calculation
Document status: Active
Security, fire and security and fire alarm systems and complexes. Rules for executing and accepting works
Document status: Active
Technological design standards. Urban and rural telephone networks (NTP 112-2000)
Document status: Active
