Interested to Buy Any Domain ? << Click Here >> for more details...
I've descovered that when the earth wire in a domestic
electrical installation is not connected back to the board
(ground) a voltage of between 9-24v is is found to be
present in the earth wire.
When connected at the board there is no voltage - is this
normal and why does it happen?
- 3 Answers
- 4739 Views
- I also Faced
- E-Mail Answers
Answer Posted / kj
You will find that no insulation is perfect. There will
always be some leakage. As well there will be induction
into the wire because it is run next to the phase and
neutral. Both of these can account for a voltage in the
earth wire when disconnected.
I would expect a higher reading if the voltage was due to
leakage in the insulation. This could be up to phase
voltage but with no current capacity.
I would think the reading is most likely induction. The
voltage here would increase depanding on the current and
the length that the earth was run with the phase and
neutral.
When it is connected to the earth in the board the voltage
is drained away as in both cases there is only negligible
current capacity.
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
What are the two types of compensation?
1.how many types of relays? 2.difference between ATS& STS?
WHAT IS THE MEANING OG (li = 7 In)
whats the application of voltage regulation? and whats the voltage regulation's device?
what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor
WHat is the general checks required for Dry type transformers
what are the available sizes of pin type terminal lugs in the market today?
What is the estimated total hydropower potential of india?
how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)
How to operate a ac chilar plant?
Igfet is a
Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0
what is feeder bay?
solar inverters was not connected to the nuteral link .this nutwral possible to any other systems
what are the ''pitting rings''and how cn they be controlled in a series generator
