Kikusui PBZ20-20, Руководство пользователя

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PBZ
29
Connecting the Load
1
Inst
allation an
d Prep
aratio
n
Load Cables
Current capacity of load cables
If you use load cables whose capacity meets or exceeds the rated output current, even if the
load is shorted, the cables will not be damaged. The load cables that you use must have a
current capacity that allows the PBZ’s rated output current to flow.
The cables’ allowable current depends on the insulation’s
maximum allowable temperature.
A cable’s temperature is determined by the resistive loss based on the current, the ambient
temperature, and the cable’s external thermal resistance. The following table shows the
current capacity of heat-resistant vinyl cables that have a maximum allowable temperature of
60

C when one of the cables is separated and stretched out horizontally in air in an ambient
temperature of 30

C. The current capacity must be reduced under certain conditions, such
as when vinyl cables that have a low heat resistance are used, when the ambient
temperature is 30

C or greater, or when cables are bundled together and little heat is
radiated.
WARNING
Improper use of load cables may lead to fire.
• Use load cables whose capacity is adequate for the PBZ’s rated output current.
To avoid electric shock, observe the following precaution.
• Use load cables whose rated voltage meets or exceeds the PBZ’s isolation voltage
(500 Vdc).
Nominal cross-
sectional area
(mm
2
)
AWG (reference cross-
sectional area; mm
2
)
Allowable current
1
(A; Ta = 30

C)
1
Excerpt from Japanese laws related to electrical equipment.
Kikusui-
recommended
current (A)
2 14 (2.08) 27 10
3.5 12 (3.31) 37 –
5.5 10 (5.26) 49 20
8 8 (8.37) 61 30
14 5 (13.3) 88 50
22 3 (21.15) 115 80
30 2 (33.62) 139 –
38 1 (42.41) 162 100