Risk Of Explosion Due To Electrostatic Discharge - Siemens SIMOTICS XP 1MB5 Operating Instructions Manual

Safety information
2.7 Risk of explosion due to electrostatic discharge
• Electronic modules should not be brought into contact with electrically insulating materials,
such as:
– Plastic film
– Plastic parts
– Insulating table supports
– Clothing made of synthetic fibers
• Always place the modules on conductive and grounded surfaces.
• Always pack, store and transport electronic modules or components in conductive
packaging, such as:
– Metallized plastic or metal containers
– Conductive foam material
– Domestic aluminum foil
The ESD protective measures required for components that can be destroyed due to
electrostatic discharge are shown in the following drawings:
a = conductive floor sur‐
face
d = ESD overall
2.7

Risk of explosion due to electrostatic discharge

Risk of explosion due to electrostatic discharge
Electrostatic discharge poses a potential ignition source. Dangerous electrostatic charging can
occur, for example as a result of mechanical friction, flowing air that contains particles,
processes that generate significant levels of charge – or persons that are not appropriately
grounded, e.g. when carrying out maintenance or cleaning work.
In an explosive atmosphere, there is a risk of an explosion. This can result in death, serious
injury or material damage.
• When cleaning, ensure that there is absolutely no explosive atmosphere present.
• Comply with ESD protective measures.
• Avoid carrying out work specified above on non-metallic parts, e.g. foam rubber for noise
dampeners/attenuators.
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b = ESD table
e = ESD wristband
c = ESD shoes
f = cabinet ground connection
1MB5 shaft height 400/450
Operating Instructions, 04/2023, A5E52802354A