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Improper work on electrical systems!
Electric shock can result in death or life-threatening
injuries.
Before working on electrical systems, disconnect
4
them from their voltage supply and secure them
against being switched on again.
Work on electrical installations should be carried
4
out only by qualified personnel in compliance
with local and national electrical regulations and
specifications.
Personnel qualifications
A qualified electrician is a person with suitable technical training,
expertise and experience as well as knowledge of relevant
standards, who can evaluate the work assigned to them
correspondingly and recognize potential risks.
WARNING
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