Iec 60364 Part 551 Pdf Link

Inspectors rely on the standard to verify that installations meet safety regulations.

These systems act as a substitute for the public supply grid. A mechanical or electrical interlocking system ensures that the generator and the main grid cannot connect to the load simultaneously. This prevents backfeeding power into a dead utility grid, which poses a severe hazard to utility line workers. 2. Parallel Operation Systems iec 60364 part 551 pdf