Safety rules
40 MPR-e
Therefore, slits or apertures are made to let air circulate freely and allow dangerous gases to
down-flow (battery-emitted hydrogen). A 417-IEC-5641 Norm. compliant label is affixed
next to the slits indicating that the openings must not be covered up.
Moving mechanical parts: labeling and safety instructions
The following warning label is affixed next to fans or other moving mechanical parts:
Before carrying out any maintenance operation, ensure that all the moving mechanical parts
have been stopped.
Equipment connection to earth: labeling and safety instructions
Terminals for equipment connection to earth, to be done according to international safety
standards, are indicated by the following symbol:
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