Nothing wrong as long as the joint does not increase the over all resistance and does not become vulnerable for breakage.
Joint has to complete and perfect.
A clean earthing system is a circuitry that connects the electric circuit to the ground. This defines the electrical conductors to the Earth's conductive surface.
A clean earthing system is a circuitry that connects the electric circuit to the ground. This defines the electrical conductors to the Earth's conductive surface.
The green wire is designated as a ground wire. This wire in a feeder cable is bare copper and connects to the distribution panel's ground bus and at the load it is connected to the frame ground of the equipment. The UK uses the same colour for the grounding or earthing but it also has a yellow tracer on the green colouration.
Assuming your reference to "earthing" is grounding (Grounding Electrode Conductor), a pipe is, as it sounds, a pipe (i.e. water pipe). A plate would be, as it sounds, a square (or rectangular) copper plate which would be buried in the ground.
Electrical earthing is classified into many types as Neutral earthing Body earthing Pipe earthing Plate earthing Chemical earthing Ground Compound Earthing
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.
Earthing
the earthing mat on the earth
grounding is done for protection of equipment from high voltage & heavy current whereas earthing is done for dead matallic part of machine.
Try wrapping it in electrical tape... depending on what is wrong with it, remove it from the battery and clean the terminals, splice the wire if broken, or remove it from where it connects on the other end and clean and reassemble. a ground wire isn't that big a deal.
In Canada it is a #6 bare copper conductor that connects the grounding rod or plate to the neutral point in the distribution panel.
Earthmat design is a technique for improving earthing points.It is used at those places where burying ground rods is not possible