1. Interpretasi electrical engineering drawing
Applies standardization and normalization of technical drawing to power plant

2. Standardization of Engineering Drawing
Standardization of Letter and Numeral
Characteristic that need to at letter and numeral at engineering drawing:
a) Explains.
b) Same as.
c) Can be made the microfilm, or way of other reproduction.
d) technical Letter and drawing number always becomes way shows engineering drawing purposes and objectives to be the clearly.
e) technical Letter and drawing number besides functioning like upper, also will become decoration for drawing the engineering. On that account position of drawing and also letter and number need to be arranged in such a manner so that easy to read.
f) Basically form of letter and drawing number technique in can be classified to become two :
1) Letter and number to draw building engineering.
2) Letter and number to draw mechanical and electricity engineering .
g The Letter and number can be erect or incline.

3. Example Of Form Letter and Standard Number

4. Standardization of Drawing Line
Line slab is 10 high % of article. When you draws with ink china or computer, this line width can be given before all, for example: article height 5 m, line width 0,5 mm

5. Line Width According To Standard Angle CAD Blocks

6. There is five drawing line types, that is :
a) Drawing Line: To make ridge from form of a substance in drawing
b) Mirage Line: In the form of dash line with thickness of line 1/2 ordinary line weightses. This line applied to make ridge something substance that is is not seen direct by ocular.
c) Liver Line: In the form of line “ stripe, point, stripe, point “ with thickness of line 1/2 ordinary lines. This line for example applied to show axis a substance drawn.

7. d) Scale Line: In the form of trim lines with thickness of 1 / 2 from ordinary line weights. This line applied to show scale a substance or space. Scale line consisted of limit of size guide line and scale guide line. Limit of size guide line is made separated from substance boundary line, thereby hence doesn't confuse drawing reader. Be marking with lines scale guide is made with tip of the base is given child of arrow signal on the dotted line limit of size guide.
e) Secant: This line in the form of line “ strip,dot,strip, dot” with thickness of 1/2 ordinary line weightses. All engineering drawings desired with chopping, cross section ridge must be marked with lines with this secant.

8. Mirage Line
Drawing line
Drawing line
Scale Line
Mirage Line
Drawing type’s.

9. Line type according to thickness is three kinds, that is: Thick line, medium line and trim lines. Third this line weights type according to standard angle blocks ISO has comparison !: 0,7 ; 0,5. Line weights is selected according to big the so small drawing, and selected from concevutive Thick following: 0, 18; 0, 25; 0, 35; 0, 5; 0, 7; 1; 1 4; and 2 mm. Because difficultys of the way of certain reproduction, Thick 0, 18 better don't be used. In general line weights is 0, 5 or 0, 7.

10. Distance Between Lines
Distance a minimum of between lines ( interval of line diameter) parallel is including hachures, may not less than thrice thickest line weights from drawing. Suggested that line ante-room is not less than 0, 7 mm.
Line weights
Distance Between Lines is suggested minimum value = 3a
Space between minimum lines = 0,7 mm
Distance Between Lines

11. At proportioned parallel line, the distance suggested to be least four times line weights.
Parallel line that is Is Each Other Proportioned

12. When some centre on lines a point, the lines is not drawn is proportioned at the vocal point, but desisting at point where interval marked with lines approximately equal to thrice the line weights
Crosscut line at A Point

13. Line incises and proportioned point line, or meets, must be brought into relief point of the meeting or point of the intersection.
True
False
True
False
True
False

14. Line Usage Thick Line Trim lines Free Line Drawing and Edge Line
Line Type
Description
Usage
Thick Line
Drawing and Edge Line
Trim lines
Free Line

15. Line incises Line is having point
Point line which thick point at the end of its and at transformation of direction
Line is having point of Thick

16. Squeezing lines
When two lines or more different of he type squeezs, hence the depiction must be executed as according to priority like following:
a) Drawing line ( Thick line continue, type A)
b) Line is not seen ( line incises medium, type D)
c) Secant ( line is having point, which thick the noses and place of direction transformations, type F)
d) Axis lines ( line is having point, type E)
e) Line assists, measure line and hachures line ( trim lines continue, type B)

17. Garis yang Berimpit

18. Skala Gambar a) Enlarging scale
There is three kinds of drawing scale, that is:
a) Enlarging scale
Enlarging scale is applied if the drawing is made bigger than at substance actually. For example if the substance is complicated and small like for example control circuit at street lamp, hence having to applies enlarging scale to depict this circuit.
Directing for enlarging scale is: x: 1, while complete scale suggested is:
50: 1 ; 20: 1 ; 10: 1
5: 1 ; 2: 1

19. b) Full scale
Scale full of utilized when the drawing is made of equal size to substance actually. This scale suggested for as possible is utilized, in order to can imagine substance that is actually, or facilitate inspection.
Scale indicator full of is 1: 1.

20. c) Diminution scale
Diminution scale is utilized when the drawing made to be smaller than drawings that is actually, while the indicator is 1: x.
Following diminution scale indicator list suggested:
1: 2 1: 5 1: 10
1: : : 100
1: : : 1000
1: : : 10000

21. Level of diminution
At usage of format DIN, level of diminution to the next DIN format with photocopy is 70,7%, for example from DIN A3 becomes DIN A4

22. Level of enlargement
For enlargement from format DIN to format DIN which is the next larger ones, applied level of enlargement 141,4%, for example from DIN A4 becomes DIN A3. this Diminution and also enlargement arranged automatically at copier

23. Line width
Eligible line width, so that at diminution or enlargement, normal line width wanted able to emerge.
Wide in set of mm.
A3 minimized 1 level DIN A4
0, ,25
0, ,35
0, ,50
1, ,70
1,40 enlarged 1 level DIN 1,00

24. Article height
Article height also can be written in such a manner, so that if minimized or enlarged able to be adapted for which we to wish.
Height in set of mm.
A3 minimized 1 level DIN A4 ,5
14 enlarged 1 level DIN 10

26. Description

28. Electrical Power Plant
Created by
Electrical Team
SMK PGRI 3 Malang
2009
THE END