They are also completely compatible with AutoCAD R13.c4 to 2024 and AutoCAD LT95 to LT2024. Within AutoCAD, add-on menus are also provided with the electrical blocks. Measuring instruments, lamps, and signaling devices.Switchgear, control gear, and protective devices.Production and conversion of electrical energy.Passive components – resistors, capacitors, inductors, etc.The Electrical IEC 617 library includes the majority of symbols contained in the following parts: