what is Direct contact and indirect contact
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There are two types of contact transmission: direct and indirect. Direct contacttransmission occurs when there is physical contact between an infected person and a susceptible person. Indirect contact transmission occurs when there is no directhuman-to-human contact.
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Direct contact
Two measures of protection against direct contact hazards are often required, since, in practice, the first measure may not be infallible
A direct contact refers to a person coming into contact with a conductor which is live in normal circumstances
Indirect contact
An indirect contact refers to a person coming into contact with an exposed-conductive-part which is not normally alive, but has become alive accidentally (due to insulation failure or some other cause).
The fault current raise the exposed-conductive-part to a voltage liable to be hazardous which could be at the origin of a touch current through a person coming into contact with this exposed-conductive-par
Two measures of protection against direct contact hazards are often required, since, in practice, the first measure may not be infallible
A direct contact refers to a person coming into contact with a conductor which is live in normal circumstances
Indirect contact
An indirect contact refers to a person coming into contact with an exposed-conductive-part which is not normally alive, but has become alive accidentally (due to insulation failure or some other cause).
The fault current raise the exposed-conductive-part to a voltage liable to be hazardous which could be at the origin of a touch current through a person coming into contact with this exposed-conductive-par
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