All Questions
29
questions
1
vote
2
answers
85
views
What is the equivalent AWG of 1/4 inch soft copper tubing?
Out of curiosity, what is the equivalent AWG of 1/4 inch copper tubing?
The tubing would be mostly hollow; how much current would it be rated for?
- 13
0
votes
1
answer
66
views
Can I charge laptop with wire 20awg
My laptop has a maximum power is 170W, 20V, and I often use it with max power.
My adapter has a broken power jack and I must change the wire that supplies power for the charge.
I use wire 20awg, the ...
0
votes
0
answers
111
views
What would be the AWG (American Wire Gauge) standard for my wire 1 x 0.75 rm?
I have been trying to figure out my wire gauge standard in AWG format. I bought a coil (100 meters) of wire and the info written on the package is: 1 x 0.75 rm. I understand the 1 in here represents ...
2
votes
4
answers
345
views
Cooling a wire to increase its current rating and lifespan
Say I have an 18 AWG wire that can stand 2.7 A. I need to use it for a much higher current than its rating, about 80 A (pulsed current for a few milliseconds).
The wire will get hot more and more with ...
- 465
0
votes
4
answers
2k
views
Best practices for soldering a larger wire to a smaller connector/terminal?
This is for a 24V 6.25A power supply. The power supply brick will feed into the connector then power a prototype device.
What are the conventions or best practices to solder a wire to a much smaller ...
- 47
0
votes
1
answer
833
views
Determining wire gauge/AWG for DC
I have 15 kW electrical motor that will be connected to a 50 V battery. I'm trying to determine the wire gauge/AWG. Looking at AWG created confusion from as every chart has different recommendation. I ...
4
votes
1
answer
2k
views
Why does same size AWG solid and stranded copper wire have such different resistance?
When I measure a stranded copper wire or see a resistance spec from mfg it is about 25% higher than what is listed in the tables I see online for solid copper wire. About 1 AWG difference. ex: 10 ...
- 147
1
vote
1
answer
457
views
Wire sizes, difference between "-" vs "/"
Is there a difference between 10/2 AWG and 10-2 in wire sizes? Why is there sometimes used a slash and other times used a dash? Googled this but didn't find anything.
- 119
0
votes
2
answers
263
views
Minimum wire AWG for 4 ohm speakers
I am planning on building a Bluetooth speaker using two of these speakers:
They will be hooked up to a Bluetooth CSR8645 board. The length of the cables is smaller than 10cm. I have wired them up ...
1
vote
2
answers
99
views
Wiring ampmeter with reduced wire size
I have a solar system on a boat.
12v 8amp max
The wiring is 12 ga
The digital amp gauge I have has 20ga wire 2”long ea total is 4”
This wire seems to small. Should I shorten the gauge wires ??
Is ...
- 17
3
votes
5
answers
15k
views
Does the voltage affect the AWG wire size choice?
I read a lot of website and articles about how to choose the right wire size, this one for example, and all of them have a table with AWG size and a corresponding maximum amperage. However, they never ...
- 31
1
vote
1
answer
563
views
Same awg wire but larger diameter on one?
I bought 22 awg wire from the same seller twice at different times. When I bought it the second time, I noticed that one of the wire including the insulation is noticeably larger. Does this 100% mean ...
- 11
1
vote
2
answers
93
views
Convention for describing larger or smaller wire awg
With wire awg, a larger number means a smaller wire. What is the proper convention for making comparisons between wire awg? For example if you you say it a wire needs to be larger than 12awg, is ...
- 543
0
votes
0
answers
255
views
Carry 2A over AWG28
I'm looking at a (relatively popular) slip ring which uses AWG28 wires and has a rated current of 2A/channel. However, this chart suggests that AWG28 is only capable of carrying 0.226A for power ...
- 893
1
vote
1
answer
201
views
IR drop in wires
I have 2 wires (18AWG & 28AWG) of the same length which I connect to a power supply to deliver power to my board.
My board will consume around 400mA maximum.
Which wire will have more IR drop ...
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