Electric Symbols : Phase, Neutral, Grounding, Earthing


Electric Symbols Phase, Neutral, Grounding, Earthing, positive, negative


In electrical engineering, there are so many important symbols and diagrams. So having a background in electrical engineering and to make a strong knowledge base we must know these symbols and diagrams. In this blog, we have published so many articles based on electrical and electronics symbols. So, you must go to the symbol section and read these articles. In this article, also we will see some important symbols.


Phase Symbol


In alternating current or AC power system phase is considered as a higher potential. Although there is no fixed higher potential and no fixed lower potential in the AC system as their polarity changes with time. As the neutral is connected to the ground, in general, its polarity is zero until it makes a closed circuit with the phase or live. But the phase is not connected to the ground, that is why the phase always has a higher potential in normal conditions. The phase is also known as Live or Line or Hot.

Phase Symbol, symbol of phase, electrical phase, phase terminal


Line or Live Symbol


Although phase is also known as live or line. It has a different symbol. It is denoted by L.

Hot or Line or Live Symbol


Neutral Symbol


In a three-phase three-wire or delta system, there is no existence of neutral. But in a three-phase start connection system, one terminal of each phase is connected together and also connected to the ground. In fact, in a single-phase system there is one phase and one neutral. The potential of neutral is zero.

Neutral Symbol, symbol of neutral terminal


Positive Symbol


In the DC circuit, the higher potential is denoted by the Positive symbol.

Positive Symbol, symbol of positive terminal


Negative Symbol


In the DC circuit, the lower potential is denoted by the negative symbol.

Negative Symbol, symbol of negative terminal


Grounding or Earthing Symbol


The connecting of non-current-carrying part of any electrical system, devices, equipment, or the neutral point to the earth or ground is called earthing or grounding. These same symbols are used in both electrical and electronic circuit and wiring diagrams.

Grounding Symbol or Earthing Symbol



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Electric Symbols : Phase, Neutral, Grounding, Earthing Electric Symbols : Phase, Neutral, Grounding, Earthing Reviewed by Author on 11/15/2021 Rating: 5
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