Toshiba V Series - Page 230

210 Ethernet module User’s Manual
Chapter 9 Installation and Wiring
9
<<Microcomputer Application Measurement/Control Installation Environment
Guideline>>
(Source: Japan Electric Measuring Instruments Manufacturers' Association)
When using cable ducts, install steel separators to separate power cables from
coaxial cables as shown in the figure below.
Figure 9-1 Duct Internal Layout Example
When laying cables in a pit, use separators in the same manner as when ducts are
used.
Figure 9-2 Pit Internal Layout Example
Table 9-3 Recommended Minimum Separation Distance
(Covered metal ducts and metal pipe) (Units: mm)
Cable installation method Covered metal ducts or metal pipe
Parallel separation
Up to 10
meters
Up to 25
meters
Up to 100
meters
Up to 200
meters
Up to 500
meters
501
meters or
over
Power cable
Up to 125 V, up to 10 A 10 10 50 100 200 250
Up to 250 V, up to 50 A 10 50 150 200 250 250
Up to 400 V, up to 100 A 50 100 200 250 250 250
Up to 500 V, up to 200 A 100 200 250 250 250 250
Levels exceeding the
above
At least 500
Power cable
Instrumentation power line
Solenoid and other control signal
s
T
ransmission cable
Separator
Metal duct
Power source
Ground (with a resistance to
ground of 100
Ω
or less)
Signal lines
Separator (steel)