Given the following "circuit", I'm trying to find out what the correct wires gauge should be for the points: A,B and C.
- I have 15 LED strips (WS2815, DC 12V / 60 LEDs per meter).
- Each segment is ~ 90 cm / 30 ft long
- Each segment is separately connected to the power-bus (parallel).
- Each segment contains 54 LED's
- Each LED uses (according to the datasheet) 15 mA
I made the following calculations:
- Current per segment is: 54 * 15 = 810 mA
- There are a total of 15 segments, which makes the total current 15*810 mA = 12.5 A (~ 150 Watts total).
What I wanna know are the correct wire gauges for: A, B and C.
I used some online wire-gauge-calculations for this, so I take it with a pinch of salt. If the above calculations are correct:
- A = the main power, a minimum of 2.5 mm2 (14 AWG) would be needed?
- B = the segment power, a minimum of 1 mm2 (17 AWG) would be needed?
C wires are connected in series, which makes the cable much longer. I have no idea how to deal with this?
Maybe someone can tell me if the basic calculations are correct? And what would be the best way to deal with the C wire?