Thanks alot everyone, you guys have been very helpful I really appreciate. I wish my books could explain the way you guys explained.
This makes all sense now RCD does not have impact on the current but effects time exposure and ADS is caused by fault current so it has nothing to do with touch voltage.
I am only wondering like you guys mentioned just because regs says as older installations have no RCD does not make them necessarily unsafe so I understand as ADS is there which is caused by L-E . afcourse along side with main protective bonding etc.
If there is a metal frame light switch and property is old with no RCD and there is some contact between Line conductor and earth or lets say metal work, in the situation how would the disconnection is acheived to prevent electric shock?
MCBS only provide overloading and short circuit protection but would ADS provide protection in the situation mentioned ?
sorry guys I am still in learning stage , maybe I am overthinking about it
This makes all sense now RCD does not have impact on the current but effects time exposure and ADS is caused by fault current so it has nothing to do with touch voltage.
I am only wondering like you guys mentioned just because regs says as older installations have no RCD does not make them necessarily unsafe so I understand as ADS is there which is caused by L-E . afcourse along side with main protective bonding etc.
If there is a metal frame light switch and property is old with no RCD and there is some contact between Line conductor and earth or lets say metal work, in the situation how would the disconnection is acheived to prevent electric shock?
MCBS only provide overloading and short circuit protection but would ADS provide protection in the situation mentioned ?
sorry guys I am still in learning stage , maybe I am overthinking about it