Double Line Diagram. Since er diagram is the pictorial representation of real world objects it involves various symbols and notation to draw the diagrams. Double lines in the er diagram represent total participation.
A double line indicates an auxiliary location devices located behind a panel board in some other inaccessible location are shown with a dashed horizontal line. Since er diagram is the pictorial representation of real world objects it involves various symbols and notation to draw the diagrams. Figure 1 shows the single line diagram of a typical 6611 kv substation.
Relationships are represented by diamond shaped box.
Both the circuits in double circuit transmission line are mounted or run through. The connection lines on a pid elaborate about the associations between instruments. Performing a double or even triple line pull can help get more rope off the drum and give you more chance of getting free. Double lines in the er diagram represent total participation.