2. Protection against direct contact
The essential rule for protection against electric shock, as defined in standard NF C 20-030, is that hazardous active parts must not be accessible and accessible conductive parts must not be hazardous, either under normal conditions or in the event of a single fault.
Protection against electric shock therefore requires the application of at least one protective provision against direct contact, in normal operation, and at least one protective provision against indirect contact, in the event of a fault. The combination of these two protective provisions constitutes a protective measure. Alternatively, protection against electric shock is provided by a reinforced protective provision ensuring protection in normal operation and in the event of a fault.
In standard NF C 20-030, protection against direct contact is referred to as main protection...
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Protection against direct contact
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