All Questions
41
questions
0
votes
2
answers
153
views
How can I find the diameter of a wire if I have the length and resistance? I cannot use measuring tool because wire is thinner than 0.1 mm
As the title suggests; I am trying to calculate the diameter of a wire given its length and resistance.
Specifications:
Length: 30.4 cm
Resistance: 17 Ω
- 117
0
votes
2
answers
86
views
12V – DC wire gauge | Does length calculation ‘reset’ at socket/ junction?
Sorry in advance that this is a basic question which is pretty obvious. I’ve just been struggling to find a clear answer and wanted to confirm.
I’ve set up a 12 V leisure battery system in my van to ...
2
votes
0
answers
90
views
Super tweeter: voice coil wire gauge x power rating apparent inconsistency?
I'm an amateur electronics experimenter/enthusiast. I have an 8-ohm super tweeter from JBL (sold in Brazil as model ST200) whose RMS power with passive crossover is 100W @ 8kHz. It's quite a large ...
- 140
0
votes
1
answer
879
views
What wire rating do I need for a WS2812b LED strip?
I am looking to make my first Arduino project. I use 140 LEDs of a WS2812B strip. I've got a 5 V, 15 A power supply plugged into a breadboard that goes to my Arduino and my LED strip. I have a roll of ...
1
vote
2
answers
242
views
Wire gauge sizing & current values [duplicate]
While working on selections of wire, I was introduced to the "current rating" of wires. Is this current rating dependent on voltage as well?
Example: A 10 AWG wire is rated to handle up to ...
- 11
1
vote
2
answers
80
views
How to distinguish different temperature wire insulations?
Wire insulations have different temperature ratings: 80°C 90°C 105°C 125°C 200°C
These ratings can result in different current ratings for the same wire gauge.
Are there ways to distinguish ...
- 749
0
votes
3
answers
504
views
Why does Pomona banana jack cable have 18 AWG but can handle 15 amps?
This is one of those very common jumper cables with banana plugs. It says 18 AWG in the datasheet (link below), but it can handle up to 15 A? One of the labmates told me it could handle up to 20 A?! ...
- 749
2
votes
2
answers
214
views
AWG and metric markings on wire differ notably
I have been looking at "Tri-rated wire". This is wire that ostensibly meets the British BS6231 Type CK, US UL 758 Style 1015, and Canadian CSA 22.2.
I have noticed that the metric wire size (...
- 21
5
votes
3
answers
2k
views
Negative DC wire gauge
I would like to mount some external flood-lights on a motorhome with a 12V DC system. I may need to install new positive wires to make sure they are sufficiently thick.
I wonder if I also need to ...
- 191
-1
votes
1
answer
477
views
What wire size to be used for Peltier cooling
I'm making a project with three Peltier in parallel (12V & 6A) each (TEC 12706) for cooling.
I would just like to know the wire size to be used in (AWG or mm2), for running project smoothly.
- 11
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 ...
0
votes
0
answers
60
views
Segmented Wire Gauge and DC Current Capacity
I am working on a project that brings power from a car battery inside the vehicle and to a DC-DC charger. The DC-DC charger then takes the power and charges a second battery. The system is rated at ...
- 111
1
vote
1
answer
658
views
DC current rating of copper wire (SWG)
I want to use SWG-sized copper wire but I am a little bit confused about the following:
On the internet I found different charts with different maximum current ratings for the same wire diameter. The ...
- 259
2
votes
0
answers
162
views
Wire gauge to connect to chassis in van
I'm building an AC electrical system for my van conversion and I'd like to know if there's a minimum wire gauge I should use to connect my negative bus bar to my van's chassis.
Specs:
I'm running a ...
- 131
0
votes
2
answers
2k
views
What would be suitable wiring for a 52V DC 30A 1000W e-bike?
So I bought a 12AWG RW90 wire from homedepot and I think it caused my anderson pp45 connector to blow. I'm looking at the wiring for my motor and battery, and they both look like 12 gauge wires. And I'...
- 1