Siemens SINAMICS GM150 Operating And Installation Instructions page 30

Safety instructions
2.8 Residual risks
● Damage from pressure build-up during electric arcs in the event of a fault
● Dangerous electric arcs during internal faults
Dangerous electric arcs during internal faults
Defects such as damage to components, overvoltages, or loose parts, as well as exceptional
operating statuses, can cause a failure within the enclosure. This can result in an internal
electric arc. If an electric arc occurs and people are nearby, this could lead to death, serious
physical injury, and damage to property.
● Ensure that only qualified personnel perform work on the drive.
● Observe the safety and operating instructions in this documentation and on labels at the
Note
There are no standards for medium-voltage drives stipulating requirements or inspections for
electric arc resistance. There is therefore neither formal guidance provided nor formal
certification available with regard to electric arc resistance.
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If the dimensions of the building have not been designed correctly for the drive, damage
can result from the pressure that may build up inside.
The drives are designed according to the relevant IEC standards and have been tested in
line with strict type-testing procedures. They were developed and manufactured so that
there is a very low probability of internal faults occurring. However, internal faults cannot
be completely ruled out.
WARNING
drive for all work on the drive.
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017