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This standard also gives guidance to electrical workers on the selection of personal protective equipment and protective clothing for protection from electrical arc flash hazards. CSA Z462-18 is the fourth and most current edition of the standard.
Key principles covered are JSA/JHA/AHA procedures to ascertain shock protection boundaries, arc flash incident energy expressed in calories/cm2, lockout-tagout, and personal protective equipment. While the various OSHA, ASTM, IEEE and NEC standard provide guidelines for performance, NFPA 70E addresses practices and is widely considered as the ...
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ISO 7010 states on all symbols with a first aid cross, that it "may be replaced with another element appropriate to cultural requirements". In countries with a Muslim -majority population, an appropriate symbol is the crescent .
[citation needed] Higher voltages can cause a spark to jump, initiating an arc flash without the need for physical contact, and can sustain an arc across longer gaps. Most powerlines use voltages exceeding 1000 volts, and can be an arc-flash hazard to birds, squirrels, people, or equipment such as vehicles or ladders.
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Annex IV, Minimum Requirements for the identification and location of fire-fighting equipment, is specific to fire-fighting equipment, specifying that red should be used to mark the equipment and its storage location, to supplement the fire-fighting signage provided in Annex III.
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.