Making a load On, By using a clamp meter for measuring the current in the wires :
we find a reading in Amps. if we clamp the neutral wire.
and zero when clamping the earthing wire.
GREEN
A neutral wire provides a return path for the hot lead while an earth or "ground" wire is provided as a safety function only that is not normally intended to carry current except for the purpose of operator protection.
These colour wires are used in European and UK wiring. The blue wire is used to the identify the neutral conductor and the brown wire is used to identify the "hot" conductor.In Canada and the US. The white wire is used to the identify the neutral conductor and the any colour but green is used to identify the "hot" conductor.
A circuit breaker does not have a wire fuse in it.
Even though it is a clear wire, there will be a tracer of raised or indented rib on the wire to identify the neutral. You may have to run your thumbnail around the wire to feel it rather that see it. This ribbed identified wire will be the neutral leaving the other wire to be connected to the hot side of the circuit.
Nutral wire can be measured by using clamp meter, if there is a current passing through the wire, we got a reading in the clamp meter i.e. 2A. If we clamp the earth wire by the clamp meter the reading will be zero.
The earthing wire does not normally carry current.
GREEN
no use laying an earthing strip in a cable tray better tap both the ends of the earthing wire to the trunking,it will save your wire also,or lay out a cable in the other trunking where you have low voltage wire running in.
An earthing boss and earthing lug are parts of a grounding connection. An earthing boss is in a casting that allows for the drilling and tapping of hole. A earthing lug is used to bond a wire to the ground.
Yes
earth wire not cnnected from main earth
A thick earthing wire, or a wide, flat conductor, is preferred, because it's more important to minimize henrys (inductance) in the earthing system than to reduce ohms (resistance). For the same reason, corners and small angles in an earthing conductor should be avoided, and the conductor should approach any connections from a parallel direction.
normally the blue and red wires are hot white is standaed for nutral,
There are three wires-the live wire, which is red or brown, the neutral wire, which is blue, and the earthing wire, which is yellow or green. The live wire has high voltage, and supplies electricity. The earthing wire brings the electricity safely to the ground in case of an electrical fault. There is also a fuse, which in case of a huge surge of power would melt, breaking the circuit and preventing an accident.
A neutral wire provides a return path for the hot lead while an earth or "ground" wire is provided as a safety function only that is not normally intended to carry current except for the purpose of operator protection.
The same as 'grounding' , putting a wire or metal stake into the ground so something attached to it has the same electrical potential