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1
KEY TO SYMBOLS AND SAFETY PRECAUTIONS
1.1
EXPLANATION OF SYMBOLS
WARNING SYMBOLS
Safety instructions in this document are
framed and identified by a warning triangle
which is printed on a grey background.
Electrical hazards are identified by a
lightning symbol surrounded by a warning
triangle.
Signal words indicate the seriousness of the hazard in
terms of the consequences of not following the safety
instructions.
• NOTICE indicates possible damage to property or
equipment, but where there is no risk of injury.
• CAUTION indicates possible injury.
• WARNING indicates possible severe injury.
• DANGER indicates possible risk to life.
IMPORTANT INFORMATION
Notes contain important information in
cases where there is no risk of personal
injury or material losses and are identified
by the symbol shown on the left. They are
bordered by horizontal lines above and
below the text.
ADDITIONAL SYMBOLS
Symbol
Meaning
a step in an action sequence
B
a reference to a related part in the
document or to other related documents
a list entry
•
a list entry (second level)
–
Table 1
Documentation symbols
ABBREVIATIONS
Ø
Diameter
RS
Room Sealed
Table 2
Abbreviations
6 720 644 842b (2010/12)
KEY TO SYMBOLS AND SAFETY PRECAUTIONS
SYMBOLS
Cutting required
Cutting not required
Table 3
Symbols
3
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