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Maintenance
De-energize device and secure against being switched on again
Extreme danger!
If work is to be performed on the
devices, they must be de-energized.
DANGER!
That means that all live lines must be
switched off.
Switching off the device alone is
insufficient, as certain points may
remain energized. Therefore, switch
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off fuses before performing any work
and – if possible – remove them.
Extreme danger!
Severe accidents can occur if the device is mistakenly
switched on again.
Immediately after de-energizing, secure all switches or
DANGER!
fuses used for de-energizing against being switched on
again.
• In case of circuit breakers which cannot be
screwed out, a strip of adhesive tape may be
applied over the actuation lever with the wording
"Do not switch, danger!".
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A prohibition sign with the text:
• "Work in progress!"
• "Place: .............................."
• "Sign may only be removed by: ............"
must always be securely mounted immediately.
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Extreme danger!
Prohibition signs must not be hung on or touch live parts.
DANGER!
Please open this fold-out page.
37
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