Answer Posted / ragavan
The most widely used are 30 mA (milliamp) and 100 mA devices. A current flow of 30 mA (or 0.03 amps) is sufficiently small that it makes it very difficult to receive a dangerous shock. Even 100 mA is a relatively small figure when compared to the current that may flow in an earth fault without such protection (hundred of amps)
A 300/500 mA RCCB may be used where only fire protection is required. eg., on lighting circuits, where the risk of electric shock is small.
Is This Answer Correct ? | 20 Yes | 11 No |
Post New Answer View All Answers
How cable from Kit-Kat to main switch, from starter to motor are designed?
sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence
I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com
what about SAP/MRP regarding manufacturing of electric motors and all drives?
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....
placement paper samples of mspl company
The screw thread commonly used for transmission of motion is one of the following types of threads
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
Define what is the function of anti-pumping in circuit breaker?
State Maximum Power Transfer theorem.
What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks
Why armature rheostat is kept in maximum position?
what kelvin's law ?
What is core CT & it's function?