Siemens SINAMICS S220 Equipment Manual page 282

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11.4 DC link adapter
Electric shock or fire if the necessary clearances and creepage distances are not complied
with
When using end sleeves without protective collar, the required clearances and creepage
distances for the DC link adapter (6SL3162-2BD00-0AA0, 6SL3162-2BM01-0AA0) are not
complied with. This can result in flashover between the cables and the undesirable formation
of arcs. As a consequence, there is a risk of electric shock and fire.
• Only use DC link connecting cables with end sleeves with protective collars.
Fire and device damage as a result of ground fault/short-circuit
The DC link connecting cables must be laid so that a ground fault or short-circuit is impossible.
A ground fault can cause a fire with smoke development.
• Comply with local installation regulations, which allow this fault to be ruled out.
• Protect the cables against mechanical damage.
Also implement one of the following measures:
• Use cables with double insulation.
• Maintain adequate clearance, e.g. by using spacers.
• Lay the cables in separate cable ducts or conduits.
Fire due to overheating when permissible power cable lengths are exceeded
Excessively long power cable lengths can cause components to overheat with the associated
risk of fire and smoke.
• Ensure that the total length of the DC link including the connecting cables does not exceed
Electric shock due to incorrectly laid 24 V supply cables
If supply cables are laid without safe electrical separation, the insulation can fail with an electric
shock.
• Maintain a clearance of at least 100 mm between the 24 V supply cables and the DC link
• Or use cables with double insulation (e.g. sheathed cables) for the 24 V supply cables.
280
WARNING
WARNING
WARNING
10 m.
WARNING
connecting cables.
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA

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