Symbols; Safety Instructions - Stahl 8571/51 Instructions De Service

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Symbols

Warning!
This symbol indicates advice which, if ignored, puts your health or the ability of the de-
vice or devices to function at risk.
Note
This symbol indicates important additional information, tips and recommendations.
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Safety instructions

The most important safety instructions are summarised in this chapter. It is intended to
supplement the relevant regulations which must be studied by the personnel responsi-
ble.
When working in hazardous areas, the safety of personnel and plant depends on com-
plying with all relevant safety regulations. Assembly and maintenance staff working on
installations therefore have a particular responsibility. They require precise knowledge
of the applicable standards and regulations.
As user, please observe:
• National safety and accident prevention regulations,
• National installation regulations (e.g. IEC 60 079-14),
• Generally recognised technical regulations,
• Safety guidelines and information in these operating instructions,
• Characteristic values and rated operating conditions on the rating and data
plates,
• Additional instruction plates / labels on the device,
• that any damage can invalidate the Ex-protection,
• that the power supply has been disconnected before opening the device,
• that the socket's hinged cover is closed with the bayonet ring when the plug is
pulled out,
• that, subsequent to each short circuit in the switch's main circuit, the entire sok-
ket flange must be replaced. This is because the switching contacts of a herme-
tically-sealed apparatus can not be tested for functionality,
• that after a short circuit, the functionality of the plug connector in the circuit
must be checked.
Use the devices in accordance with the regulations and for its intended purpose only
(see "Function of the maintenance socket isolator" on page 14). Incorrect and impermis-
sible use or non-compliance with these instructions invalidates our warranty provision.
No changes to the devices or components impairing their explosion protection are per-
mitted. Further, they may only be fitted if they are undamaged, dry and clean.
Maintenance socket isolator 8571/51
Symbols
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