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  2. Electrical equipment in hazardous areas - Wikipedia

    en.wikipedia.org/wiki/Electrical_equipment_in...

    NFPA 70, the National Electrical Code (NEC), defines area classification and installation principles. [1] NEC article 500 describes the NEC Division classification system, while articles 505 and 506 describe the NEC Zone classification system.

  3. Appliance classes - Wikipedia

    en.wikipedia.org/wiki/Appliance_classes

    Although there should be no risk of receiving an electrical shock from Class III appliances, other electrical hazards (such as overheating and fire) must still be considered. For instance, a laptop or mobile phone might qualify as a Class III appliance if it is charged via an external SELV adapter, even though the onboard battery could pose a ...

  4. Electrical safety standards - Wikipedia

    en.wikipedia.org/wiki/Electrical_safety_standards

    Electrical shocks on humans can lead to permanent disabilities or death. Size, frequency and duration of the electrical current affect the damage. [8] The effects from electric shock can be: stopping the heart beating properly, preventing the person from breathing, causing muscle spasms. The skin features also affect the consequences of ...

  5. IP code - Wikipedia

    en.wikipedia.org/wiki/IP_Code

    IP65 touchscreen display IP65 LED lamp. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures against ...

  6. NEMA enclosure types - Wikipedia

    en.wikipedia.org/wiki/NEMA_enclosure_types

    Below is a list of NEMA enclosure types; these types are further defined in NEMA 250- Enclosures for Electrical Equipment. Each type specifies characteristics of an enclosure, but not, for example, a specific enclosure size. Note that higher numbers do not include the lower-numbered tests. For example, types 3, 4 and 6 are intended for outdoor ...

  7. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 60873 Electrical and pneumatic analogue chart recorders for use in industrial-process systems ... Electrical insulating gloves; ... IEC 61355 Classification and ...

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