c. SAFETY SYMBOLS AND SAFETY IDENTIFICATION FOR USE ON
ELECTRICAL EQUIPMENT
7. system
Phase 1
Phase 2
Phase 3
U
V
W
Not specified
Not specified
Not specified
Supply
d.
.1.c. The identification conductors the combination letters and numbers
(alphanumeric notation) used diagrams the same way the identification terminals. 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.
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.SAFETY SYMBOLS AND SAFETY IDENTIFICATION FOR USE ELECTRICAL EQUIPMENT 67
7.
Table 7. The identification is
placed either directly the terminal near it.c.
The terminals electrical equipment are identified for the same purpose. 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 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.) used in
electrical diagrams. The same
identification terminals used electrical equipment (appliances, devices, etc. The identification provided the
combination letters and numbers (alphanumeric notation) symbols.1
