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Hertz HDD 75 - Daily Start Procedure

Hertz HDD 75
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TRANSPORTATION, HANDLING, INSTALLATION
39
6.4.1 HDD-HVD Series Cable Section Table
It is however highly recommended to keep the voltage drop over the supply cables at nominal
current below 5% of the nominal voltage.
Branch circuit breaker must be installed on site. It is suggested on electrical wiring diagram.
Calculation method according UL 508A, table 28.1 column 5: allowable ampacities of insulated
copper conductors (167 °F (75 °C)).
The gauges named in the table correspond to those in UL508A. (Rubber sheathed cable at 86 °F
and max. 55 yd (50m) cable length).
Local regulations remain applicable if they are stricter than the values proposed below.
Table 6 HDD-HVD Cable Sections
MODEL
CABLE
SECTION(AWG) 230V
CABLE SECTION(AWG)
460V
CABLE SECTION(AWG)
575V
HDD 22
3 x AWG1 + AWG4
3 x AWG4 + AWG8
3 x AWG6 + AWG8
HDD 30
3 x AWG2/0 + AWG2
3 x AWG3 + AWG6
3 x AWG6 + AWG8
HDD 37
3 x AWG3/0 + AWG1
3 x AWG2 + AWG6
3 x AWG4 + AWG8
HDD 45
N/A
3 x AWG1/0 + AWG3
3 x AWG3 + AWG6
HDD 55
N/A
3 x AWG2/0 + AWG2
3 x AWG2 + AWG6
HDD 75
N/A
3 x 250 kcmil + AWG1/0
3 x AWG2/0 + AWG2

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