DIN VDE 0681-5 VDE 0681-5:1985-06
Operating, testing and safe-guarding devices for work on electrically energized systems with rated voltages exceeding 1 kV
Phase comparators
                                                                Class/Status:
                                Standard,
                                    withdrawn
                                                                    Released: 1985-06
                                    
                                                                VDE Art. No.: 0681003
                                                            

