Electrical safety standards

Electrical safety is a system of organizational measures and technical means to prevent harmful and dangerous effects on workers from electric current, electric arc, electromagnetic field and static electricity.

History

The electrical safety develops with the technical progress. In 1989 OSHA[1] promulgated a much-needed regulation in the General Industry Regulations. Several standards are defined for control of hazardous energy, or lockout/tagout. In 1995 OSHA was successful in promulgation of regulations for utility.[2] In 1994 were established Electrical Safety Foundation International non-profit organization dedicated exclusively to promoting electrical safety at home and in the workplace.[3]

Standards are compared with those of IEEE and NFPA(National Fire Protection Association).[4]

Lightning and Earthing protection

Lightning and Earthing protection systems are essential for the protection of humans, structures,protecting buildings from mechanical destruction caused by lightning effects and the associated risk of fire, Transmission lines, and electrical equipment from electric shock and Overcurrent.[5]

Earthing protection systems

TT earthing system

Lightning protection systems

Physiological Effects of Electricity

The electrical shock on human can lead to permanent disabilities or death. Frequency and duration of the electrical current determine the damage from current to human.[7] The effects from electric shock can be:Stopping the heart beating properly,Preventing the person from breathing,Causing muscle spasms In jealousy of size,frequency and duration of the current. The skin features also have an impact on the consequences of electric shock.[8]

Electric shock graph

Electrical safety standards organizations

NFPA 496,NFPA 70

Electronics and Communications

Electronic products safety standards

The manufacturers of electronic tools must be taken into account with a several standard for electronic safety and protect the health of the humans and animals.

potentially hazardous electromagnetic radiation at microwave frequencies.[21]

Communication and high frequency safety standards

Few standard were introduced for the harmful impact from high frequency, Canada (CAN) CB-02 Radio Equipment[23]

See also

References

Radiated Power Generated from Dammam Radio Stations,”1998

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