3. Cabling
3-7
TI 33J01J10-01EN
• Power cables must be laid 1 cm or further away from signal cables.
• Power and grounding cable are use power and ground cables which are in conformance
with the safety standard of each country.
n Type and Maximum Length of Power Cables
Low-voltage
wiring
Power
distribution
board
Power distribution
board
Equivalent voltage drop (referred to 100 V
supply) of 2 V or less in the main line, viewed
from the indoor power distribution board
Voltage drop of 2 V or less
across this section of wiring
Equip-
ment
L (m)
AC wiring (100 V AC, 220 V AC)
High-voltage
wiring
Voltage drop of 1.2 V or lower
across this section of wiring
L (m)
24 V DC±10 %
Note:
A voltage drop may be thought of as
the load fluctuation that would result
if the load were turned on and off.
F030203.ai
Equip-
ment
Figure Maximum Cable Length Calculation Conditions
Apr. 21, 2017-00
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