This calculator was originally written when amplifiers were rarely capable of producing more than approximately 1000w into 2 ohms. // Calculating total power draw from battery Use a larger gauge wire. document.volt_drop1.circular_mils.value = (10383.7/(Math.pow(1.2599,hold1))); Please refer to the sizing chart in the specifications tab to determine if this pant will suit your application. Maximum Power for a Given Wire Size: document.volt_drop1.current_flow.value = Math.round(document.volt_drop1.current_flow.value); PVC: Selecting a prepacked complete amp installation kit is a great value because all parts required to finish a basic installation are included in one package. }, 1 square mil = 1.273 circular mils circular_mils = eval(document.sq_mil_to_cir_mil_calc.circular_mils.value); This site is for those who want to begin racing karts but don't fully understand how the various parts work. In a few steps we show you how to dress up your cable ends, giving them that high end appearance for only a few dollars, Shopping online you can find many bargains, one can really save some money when shopping around. "; // Calculating circular mils per amp To purchase 18' enter "18" in the QTY box and click add to cart. }. We do recommend using two different color wires to differentiate between positive and negative connections though. Thank You! function program_sq_mil_to_circular_mil() Each "leg" is 5" long to provide the installer added flexibility when terminating his cables. document.sq_millimeter_to_cir_mil_calc.circular_mils.value = (document.sq_millimeter_to_cir_mil_calc.square_millimeters.value*1973); It is nice and shiny for a while but after a short time (actually from the time it is drawn), it starts to oxidize (unless the wire is kept in an oxygen free atmosphere). current_flow = eval(document.volt_drop2.current_flow.value); hold1 = (wire_gauge-10); document.volt_drop1.current_flow.value = (document.volt_drop1.power_draw.value/document.volt_drop1.battery_voltage.value); This is a very inaccurate method to determine what the proper gauge wire required for your amp installation. circular_mils = eval(document.volt_drop1.circular_mils.value); If you have 15 feet of 4g power wire and your amplifier will draw 150 amps max Voltage Drop = current flow * (length of wire in feet * resistance per foot) if (eval(document.awg_to_sq_mm.wire_gauge.value) <= 10) Circular Mils: Colors available include Black, Blue, and Red. document.gauge_conversion.circular_mils.value = (10383.7/(Math.pow(1.2599,hold1))); { document.volt_drop1.current_flow.value = (document.volt_drop1.current_flow.value/10); If you have to calculate the resistance of a wire with a significantly larger or smaller gauge (like 4g power wire), you can use the following formula: For 4g wire: - Notice how the current draw increases as the efficiency decreases (and vice versa). // Calculating the difference in wire gauge input and 10g wire. document.volt_drop1.current_flow.value = (document.volt_drop1.current_flow.value*10); If we go up in wire size 6 sizes again (to 4g), the diameter is going to be double the 10g wire. Price is per pant (Y-boot) wire_gauge = eval(document.awg_to_sq_mm.wire_gauge.value); We will notify you when this product becomes available. document.sq_millimeter_to_cir_mil_calc.circular_mils.value = (document.sq_millimeter_to_cir_mil_calc.circular_mils.value*1000000); If you tap off of a larger wire with a smaller wire (commonly done to power crossovers and other signal processors/accessories) and the fuse protecting the large wire was rated significantly higher than the current capacity of the smaller wire, you would again have a fire hazard. document.volt_drop1.circular_mils.value = (10383.7*(Math.pow(1.2599,hold1))); The Bassik uses a larger strand vs all our other cables. The Bassik uses a larger strand vs all our other cables. Various wire tables list slightly different values for circular mils and the diameter of the different wire sizes. radius_of_round_wire_mm = eval(document.awg_to_sq_mm.radius_of_round_wire_mm.value); Add up the fuses on the end of your amp (three 30A fuses = 90A total draw). As you already know, wire comes in many different styles and sizes. circular_mils = eval(document.gauge_conversion.circular_mils.value); // RoundingRoundingRounding It has another advantage over simply stating the diameter of a conductor in that it doesn't matter if the wire is stranded or solid. document.awg_to_sq_mm.circular_mils.value = Math.round(document.awg_to_sq_mm.circular_mils.value); This section will address the diameter of solid wire. For example a 10g conductor with a diameter of ~2.6mm: If you are inserting the wire into a terminal block, tighten the screw down tight. Note: Resistance: We already discussed resistance. "; /**/ Loss of Power Output: For most situations, 16g speaker wire is absolutely fine. hold1 = (wire_gauge-10); document.volt_drop1.circular_mils.value = Math.round(document.volt_drop1.circular_mils.value); if (eval(document.volt_drop1.voltage_drop.value) < .5) Others may suggest slightly different fuses for a given wire size but these should be generally recognized as safe in most all situations. if (eval(document.volt_drop1.wire_gauge.value) <= 10) If it's less than or equal to 10g, subtract the wire g from 10g The most important consideration is the amount of current that will be carried by the wire. Thermoplastic: Can this power wire be used as ground or power wire? Class D amplifiers are about 70-80% efficient at full power. // Calculating the circular mil-feet to find the total resistance // RoundingRoundingRounding Area of the conductor = 1.69*3.14 This table shows the amount of current flow which will cause a 1/2 volt drop in a 15 foot run of cable. - Stranded wire has air spaces between conductors and different combinations of different gauge strands will result in different overall diameters. There are links to some of the better sites and forums as well as a collection of interactive demos. Diameter = .1*1.123^6 The Specific Resistivity is the value of resistance for a circular mil foot of wire. if (eval(document.volt_drop2.circular_mils.value/document.volt_drop2.current_flow.value) > 300) resistance_circular_mil_foot = eval(document.volt_drop1.resistance_circular_mil_foot.value); // RoundingRoundingRounding All of the voltage lost across all of the conductors are added together to give the total loss. Notice that the loss is not constant. This number represents the total number of continuous feet you want to order. In most other parts of the world, they use mm2. (adsbygoogle = window.adsbygoogle || []).push({}); function program_volt_drop_1() document.cir_mil_to_sq_mil_calc.square_mils.value = (document.cir_mil_to_sq_mil_calc.square_mils.value*10000); document.volt_drop2.circular_mils.value = (document.volt_drop2.circular_mils.value*1000); Thank You! A: The fuse holder does not come installed within the kit's cable.This allows the installer to place the inline fuse holder in an optimum location during installation. /(8@lf` n- What's left is what the amplifier sees. document.volt_drop1.resistance_circular_mil_foot.value = (document.volt_drop1.resistance_circular_mil_foot.value/1000000); square_mils = eval(document.sq_mil_to_cir_mil_calc.square_mils.value); What is the difference between your Bassik and KCA Kable? into the formula P=I^2*R. We get: P = I2*R Either value is close enough for this tutorial and anything related to car audio. P = (1200*1200)*0.01 As a side note, this has nothing to do with the copper being 'oxygen free'. The SP10(F) fits KnuKonceptz Kord, KL3, and TCA series 10 gauge and fits a wide range of cables from other vendors. { Additionally, we need to make sure we select a gauge that our amplifier is physically capable of accepting. Please refer to the load chart when determining which cable series and gauge is right for your application. Due to different rounding on the spreadsheet and the calculator, the values will differ slightly between the calculator and the table above. Colors available include Black, Blue, and Red. document.volt_drop1.voltage_drop.value = Math.round(document.volt_drop1.voltage_drop.value); wire_gauge = eval(document.volt_drop1.wire_gauge.value); resistance_total = eval(document.volt_drop1.resistance_total.value); To determine the voltage drop at the current that you expect to pass through the wire, you can use the Ohm's Law formula V=I*R. V is the voltage drop across the piece of wire. I skewed the values slightly so you could see how the diameter and cross sectional area of one wire relates to the others. // Calculating the difference in wire gauge input and 10g wire. if (eval(document.gauge_conversion.wire_gauge.value) > 10) if (eval(document.volt_drop2.wire_gauge.value) > 10) When the amplifier is at or near full power, the drop in voltage is much more significant. Different Wire Gauges: Name brand products are often sold for less online. The following diagram shows the relationship between a piece of solid round wire and a piece of square copper stock with the same area (and therefore the same resistance for a given length). We will assume that some imaginary piece of wire (we don't want to destroy a real piece of wire) has 0.01 ohms of resistance (e.g. Resistance = .015 ohms. How are you able to offer such a lower price on this cable? After all of the material we just covered, it should be self-explanatory. See note below. KnuKonceptz does however have a solution for that problem too, we offer gauge reducers to fit larger gauges into smaller receptacles, Established in 2001, KnuKonceptz offers quality and unique audio accessories world wide. I used OFC wire in this example because most OFC has many fine unprotected strands. The SP10(F) is designed to fit most 10 gauge Speaker Wire. wire_gauge = eval(document.volt_drop2.wire_gauge.value); OK For a reference that's relatively easy to remember, lets use 10g wire again. Resistance = 1*1.26^10 If you have less that 4 amplifiers, enter zero in the fields that are not needed. For Those Who Refuse to Fuse: KnuKonceptz Speaker Pants turn any regular speaker wire into a well finished speaker cable. You can easily step through the wire sizes by continuing to multiply each consecutive value by 1.26. Links to the Pant product page are provided: The image below shows how the SP12(F) fits our cables. If it's less than or equal to 10g, subtract the wire g from 10g For each single digit change in the gauge, the resistance changes by a factor of ~1.26. document.volt_drop1.resistance_total.value = (document.volt_drop1.resistance_total.value*1000000); function program_circular_mil_to_sq_mil() // Calculating the difference in wire gauge input and 10g wire. The best that you can hope for is to be able to pull off of the road and get out of the vehicle before you're seriously injured or killed. Resistance = 1*1.26^6 // Convert inches to mm These savings are passed onto our customers. if (eval(document.gauge_conversion.wire_gauge_2.value) > 10) Determining the correct cable can be confusing. wire_length2 = eval(document.volt_drop2.wire_length2.value); These can be cut and shortened to better suite your installation. wire_gauge = eval(document.gauge_conversion.wire_gauge.value); document.awg_to_sq_mm.square_mm.value = (3.14159*(document.awg_to_sq_mm.radius_of_round_wire_mm.value*document.awg_to_sq_mm.radius_of_round_wire_mm.value)); Calculating Resistance: The following designations will help you understand the properties of thhn and other wire types. This means that the total cross sectional area is doubled when the diameter is increased by a factor of 1.414. document.volt_drop1.amps_per_circular_mils.value = " "; document.volt_drop2.resistance_total.value = Math.round(document.volt_drop2.resistance_total.value); 10g wire actually has a cross sectional area of 10,384 circular mils but for car audio appliciations, 10,000 circular mils will be close enough and easy to remember. To purchase 18' enter "18" in the QTY box and click add to cart. Not sure which KnuKonceptz amp wiring kit is right for your installation. document.volt_drop1.power_draw.value = Math.round(document.volt_drop1.power_draw.value); Resistance = 1/4 ohms per 1000 feet of wire Our reputation for superior products at unbeatable prices has allowed us to achieve an incredible reseller ratings and number positive product reviews on Amazon and eBay With over 100,000 happy customers and growing fast, KnuKonceptz is a sure choice for your audio needs, At KnuKonceptz, we do not use "watts" to rate our amp kits. Is there anything like oil, grease or solvents that will come in contact with the wire's insulation?
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