Marine Electrical Wire Size Calculator

Nfpa 70 national electrical code table 310 15 b 16 17.

Marine electrical wire size calculator.

Under no circumstances should this calculator be used as the sole basis for selecting wire size or circuit protection. A sample of 120 volts single phase copper wire 144 feet one half of a 288 foot circuit with 10 amps load on it yields a number 10 awg wire size. In the boating world it is suggested 3 max voltage drop for conductors providing power to panels and switchboards navigation lighting bilge blowers main dc feeders and any other circuit where. This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps voltage distance and load.

Today we are here with another comprehensive copper and aluminum wire size calculator as we have discussed in detail the topic of how to calculate the proper wire size for electrical wiring. Finally note that the amp capacity ampacity of the wire curtails using very short lengths of wire for large current flows as shown by the flat tops of the 10 chart areas. This simple equation allows you to calculate the voltage drop for a circuit of any length and any current flow if you know the resistance of the wire. This website provides a wire size calculator voltage drop calculator wire ampacity charts and more.

Electrical wire size calculator. This should be used as a reference only. Please check with your electrical inspector or a licensed electrician for the proper wire size. When selecting a wire for dc use both calculators must be applied.

This calculator is not a substitute for the expertise of a marine electrical professional. Our calculator yields results that are within code in most locations however we advise you to check your local electrical code. And the calculator providing the largest wire is the required wire. This technical brief distills the information on these charts to a more manageable size for installers and boatowners alike.

Note that most so called marine grade wire is rated at 105 c. There are many factors to consider before choosing the proper gauge. The volatge drop calculator will allow you to find the percentage of voltage drop as well as the current delivered at the end of the wire run. Quality marine wire as specified by abyc standards will always be stranded rather than solid and always tin plated copper.

The wire size calculator will give you a very simple and quick solution to the problem of calculating the size of wires and cables for pump applications in golf courses landscape projects and agriculture. In addition the dc wire selection chart shown below assumes a wire insulation rating of 105 c.