Calculated-industries 5070-B User Guide Manual do Utilizador descarregar pdf (Página 41)

40 — electricalc

Pro

KEYSTROKE DISPLAY



1. Set to 3-Phase:

(

3Ø

)

3Ø 3 PH

2. Set to 75 º C:

(

75º

)

3Ø 75 3 PH

3. Set to Copper (if necessary):

(

Cu/Al

)

3Ø 75 Cu 3 PH

4. Enter Amps:



AMPS 20.

5. Enter Volts:



VOLT 230.

6. Enter Length (Feet):



FEET 150.

7. Enter Wire Size:



AWG 10 CU WIRE SIZE

8. Solve Voltage Drop:



DROP 6.4 V

9. Solve percent Voltage Drop:



DROP 2.8 % V

Finding Voltage Drop Wire Size

A 20 Amp, Three-Phase 208 Volt load will be located 175 Feet away

from the source. Assuming a 3% allowable Voltage Drop, what is the

size of 75°C conductor required for this branch circuit? What is the

resulting voltage drop?

KEYSTROKE DISPLAY



1. Set to 3-Phase:

(

3Ø

)

3Ø PH

(cont’d)

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 65 66

TABLE OF CONTENTS 2
2 — electricalc 3
(cont’d) 3
ELECTRICALC 4
GETTING STARTED 5
(e.g., 0, 00, 000 and 0000) 10
  (Prefs) 19
(repeats options) 19
(repeats options) 19
KEYSTROKE DISPLAY 20
FUNCTION KEYSTROKE 20
KEYSTROKE DISPL AY 21
USING THE ELECTRICALC PRO 22
3Ø 3 PH 23
1 Ø 1 PH 23
3Ø 3 PH 26
* If IND is not shown, press 29
0 31
Ø* 125.0 WIRE A 32
IMPORTANT NOTE ON VOLTAGE 39
DROP CALCULATIONS 39
8 AWG Wire Size) 40
90 0 44
90 Cu 0 44
WIRE SIZE 44
APPENDIX A — DEFAULT SETTINGS 56
PREFERENCE OPTIONS 57
SHUT-OFF, BATTERIES, RESET 59
REPAIR AND RETURN 61
WARRANTY 62

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Calculated-industries 5070-B User Guide Manual do Utilizador Página 41

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