) used in
electrical diagrams.
Table 7. Identification conductors and terminals
For the purpose identification the use conductors electrical distribution system,
the insulation conductors the system one cable one line) identified colours.1.
.c. The same
identification terminals used electrical equipment (appliances, devices, etc. The identification provided the
combination letters and numbers (alphanumeric notation) symbols. system
Phase 1
Phase 2
Phase 3
U
V
W
Not specified
Not specified
Not specified
Supply
d.c.SAFETY SYMBOLS AND SAFETY IDENTIFICATION FOR USE ELECTRICAL EQUIPMENT 67
7.1.
system
Positive
Negative
Mid-wire
L+
L-
M
Not specified 1)
Not specified 1)
LIGHT BLUE
Protective conductor
Earthing conductor
Noiseless (clean) earth
PE
E
TE
GREEN-AND-YELLOW
Not specified
Not specified
PEN conductor PEN GREEN-AND-YELLOW
with LIGHT BLUE markings
or
LIGHT BLUE with
GREEN AND YELLOW
markings
1) Preferred colours used for identification conductors installations are black and brown.c. The identification is
placed either directly the terminal near it.1 Correlation between alphanumeric notations and colours insulated and bare
conductors and symbols for identification relevant terminals
Designation of
conductors
Identification
Alphanumeric
notation
Colour Symbols
(for terminals)
Supply
a. system
Phase 1
Phase 2
Phase 3
Neutral
L1
L2
L3
N
Not specified 1)
Not specified 1)
Not specified 1)
LIGHT BLUE
Equipment
terminal
a. The identification conductors the combination letters and numbers
(alphanumeric notation) used diagrams the same way the identification terminals. SAFETY SYMBOLS AND SAFETY IDENTIFICATION FOR USE ON
ELECTRICAL EQUIPMENT
7.
The terminals electrical equipment are identified for the same purpose
