Fundamental rule of protection: Difference between revisions
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{{Menu_Protection_against_electric_shocks}} | {{Menu_Protection_against_electric_shocks}} | ||
The fundamental rule of protection against electric shock is provided by the document IEC 61140 which covers both electrical installations and electrical equipment. | |||
Hazardous-live-parts shall not be accessible and accessible conductive parts shall not be hazardous. | |||
* | This requirement needs to apply under: | ||
* | * Normal conditions, and | ||
* Under a single fault condition | |||
Various measures are adopted to protect against this hazard, and include: | |||
* Automatic disconnection of the power supply to the connected electrical equipment | |||
* Special arrangements such as: | |||
** The use of class II insulation materials, or an equivalent level of insulation | |||
** Non-conducting location, out of arm’s reach or interposition of barriers | |||
** Equipotential bonding | |||
** Electrical separation by means of isolating transformers | |||
[[ru:Основные правила защиты от поражения электрическим током]] | [[ru:Основные правила защиты от поражения электрическим током]] | ||
[[zh:防护基本原则]] | [[zh:防护基本原则]] | ||
Revision as of 22:46, 24 November 2016
The fundamental rule of protection against electric shock is provided by the document IEC 61140 which covers both electrical installations and electrical equipment.
Hazardous-live-parts shall not be accessible and accessible conductive parts shall not be hazardous.
This requirement needs to apply under:
- Normal conditions, and
- Under a single fault condition
Various measures are adopted to protect against this hazard, and include:
- Automatic disconnection of the power supply to the connected electrical equipment
- Special arrangements such as:
- The use of class II insulation materials, or an equivalent level of insulation
- Non-conducting location, out of arm’s reach or interposition of barriers
- Equipotential bonding
- Electrical separation by means of isolating transformers
ru:Основные правила защиты от поражения электрическим током zh:防护基本原则
