Arc Machines 307 - Manual (Page 25)

Arc Machines, Inc. Model 307 Orbital Tube Welder Training
Document No. 740096 Chapter 3. Page 9
Rev. A
Table 4. Graphical Symbols used in this Manual
NO. Symbol Function, Key-
word or
Phrase
Application Source
1
Line To Signify a Power Line or
Cord
ANSI/NEMA
2 Single Phase To Signify Single Phase IEC 974
3
Three Phase To Signify Three Phase IEC 974
4
Three Phase
Transformer
Signifies Three Phase
Transformer
IEC
974
5
Line Connection
(Three Phase at
50 to 60 Hertz)
To Signify a Line Connec-
tion
IEC 974
6
Circuit Breaker To Signify a Circuit
Breaker in an Electrical
Circuit
ANSI/NEMA
7
Direct Current
(DC)
Signifies Direct Current IEC 417
5031
8
Water
Coolant Input
To Signify Water
(Coolant) Input
ANSI/NEMA
9
Water Coolant
Output
To Signify Water
(Coolant) Output
ANSI/NEMA
10
Earth (Ground) To Signify the Earth
(Ground) Connection
IEC 417
5017
11
Work Connec-
tion
To Signify a Work Piece
Connection
ISO 7000-0453
12
Electrode Nega-
tive
To Signify Electrode Neg-
ative Connection or
Switch Position
ANSI/NEMA