Several other symbols sometimes associated with ladder diagrams that refer
to the power portion of the electrical network-are shown in Fig. 14.5. To show
that two crossing electrical lines are not physically connected, it is only necessary
to show the cross without a heavy dot. This practice is standard in the electronic
industry since the diagrams sometimes become massive. For drawings applicable
to refrigeration systems often used in industrial workplaces, the semicircular
bypass avoids the risk of misreading a soiled drawing.
đang được dịch, vui lòng đợi..
