- Is AC really better than DC for long distance? See for yourself.
- TRY IT YOURSELF but REMEMBER TO CHANGE THE WIRE SIZE FOR AC AND DC
- DC using #6 wire gives LESS LINE LOSS THAN AC SYSTEMS USING
- 14 or 12 Gauge extension cord so DO NOT BE FOOLED BY CHEAP TALK!
- AC is not the best idea for long distance power transmission but HIGHER VOLTAGE IS!
- In-fact to get equal line losses to DC # 6G you would need to run ALL 3 wires as #8 gauge and that's way more expensive!
- SEE FOR YOURSELF USING THE SOFTWARE BELOW.
POWER

**POWER DROP CALCULATOR**<!--- Hide script from old browsers. function vdrop() { var volts=document.calc.volts.value; var phase=document.calc.phase.value; var amps=document.calc.amps.value; var nec9=document.calc.nec9.value; var length=document.calc.length.value; var cual=document.calc.cual.value; var conduit=document.calc.conduit.value; var condtemp=document.calc.condtemp.value; var parallel=document.calc.parallel.value; var alpha=0.0 var xl=0.0 var res=0.0 if (conduit=='steel') xl=nec9.substr(6,5) else xl=nec9.substr(0,5); if (cual=='cu' && conduit=='pvc') res=nec9.substr(12,5); if (cual=='cu' && conduit=='al') res=nec9.substr(18,5); if (cual=='cu' && conduit=='steel') res=nec9.substr(24,5); if (cual=='cu' && conduit=='none') res=nec9.substr(12,5); if (cual=='al' && conduit=='pvc') res=nec9.substr(30,5); if (cual=='al' && conduit=='al') res=nec9.substr(36,5); if (cual=='al' && conduit=='steel') res=nec9.substr(42,5); if (cual=='al' && conduit=='none') res=nec9.substr(30,5); if (phase==9 && cual=='cu') res=nec9.substr(48,5); if (phase==9 && cual=='al') res=nec9.substr(54,5); if (phase==9) xl=0; if (phase==9) phase=2; if (cual=='cu') alpha=0.00323 else alpha=0.00330; res=res*(1+alpha*(condtemp-75)); var awgz=Math.sqrt(res*res + xl*xl); var pctdrop=phase*length*awgz/1000/volts*amps*100/parallel; if (pctdrop>=100) pctdrop="invalid, over 100%" else pctdrop=Math.round(pctdrop*10)/10+" %"; if (pctdrop=='NaN %') pctdrop="invalid non-numeric input"; document.calc.result1.value=pctdrop; if (pctdrop=="invalid non-numeric input") alert("ERROR - Invalid non-numeric input. Be sure to enter only numbers for Load Current and Cable Length. And make selections for all drop-down menus"); if (pctdrop=="invalid, over 100%") alert("ERROR- 100% Power Loss! Your Wire Is Undersized For Your Amp Load"); } // End the hiding here. --></FONT> Remember when calculating DC two-wire and AC three-wire THAT YOU most

__also change__the**wire size**since the three wire AC generally uses smaller wire sizes than two wire single phase DC systems do. If you do not change the wire size it will APPEAR as if AC is better for long distance wire runs. The truth is the HIGH VOLTAGE is the key to running power over LONG distances.

This has nothing to do with AC or DC.select cable size... 14 awg (15/--A) 12 awg (25/20A) 10 awg (30/25A) 8 awg (40/30A) 6 awg (55/40A) 4 awg (70/55A) 3 awg (85/65A) 2 awg (95/75A) 1 awg (110/85A) 1/0 awg (125/100A) 2/0 awg (145/115A) 3/0 awg (165/130A) 4/0 awg (195/150A) 250MCM (215/170A) 300MCM (240/190A) 350MCM (260/310A) 400MCM (280/225A) 500MCM (320/260A) 600MCM (355/285A) 750MCM (400/320A) __ONE LEG ONLY__of the AC or DC wire being used in the actual wire pack.**input load current in amperes**select voltage... 2V 5V 6V 8V 9V 10V 12V 14V 18V 20V 24V 28V 36V 48V 60V 115V 120V 208V 220V 240V 277V 380V 416V 440V 480V 550V 575V 600V select system type... DC (2 wire) AC single phase (2 wire) AC 3-phase (3 wire) select conductor type... copper conductor aluminum conductor select conductor temperature... 20C (68F) 25C (77F) 30C (86F) 35C (95F) 40C (104F) 45C (113F) 50C (122F) 55C (131F) 60C (140F) 65C (149F) 70C (158F) 75C (167F) 80C (176F) 85C (185F) 90C (194F) select conduit type... PVC conduit aluminum conduit steel conduit no conduit select number of wires One wire (ground wire calculation) 2 wire pack (AC/DC single phase) 3 wire pack (AC three phase) 4 conductors (doubled wires) **TWO wires for DC**and**THREE wires for AC**3 phase**Input length of cable in feet**(point A to B)

Estimated Voltage Drop Loss

*Hit 7668-TimesNo-one!*