All Questions
50
questions
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
2
answers
105
views
Which wire gauge (AWG) to make copper brushes?
I have to realize some sliding contact between a board and another one. The moving board has a fixed rail, and it can move horizontally.
I want to transfer power from the bottom board to the top one. ...
1
vote
1
answer
120
views
Electrical Drawing Question
I was looking at the electrical drawing above - for US commercial construction.
Could you please explain what the following lines mean?
4#250, 1#4 GRD. 2-1/2" C
or
3-#8 +10 GRD in 3/4" C
- 13
1
vote
1
answer
1k
views
Power cable rating: amps vs. wattage [duplicate]
I have a very weird science experiment, where I need to provide 50 A over a cable. The requirement is independent of voltage (for a Hall-effect sensor).
My plan was to use a 5 V, 100 A power supply ...
- 1,907
6
votes
5
answers
3k
views
Is the bigger wire section always better from the electrical point of view?
A bigger wire section is better for lowering power loss and voltage drop due to lower cable resistance.
Is there any case or application where using a wider cable section is worse?
(Exclude mechanical ...
- 269
0
votes
0
answers
137
views
Wire size: is a 16 AWG wire the same 3x 23 AWG wires?
I'm building an LED installation and I was wondering if I could use the cat6 cables I already have. I've calculated the needed wire area to be 16 AWG (D 1.4mm, 1.65mm2) (for 5 meters).
Would this be ...
- 19
1
vote
2
answers
5k
views
How to calculate length needed for heating element (2mm Nickeline/Nichrome wire) to a specified power?
to start off, i dont really understand about electrical engineering. im a mechanical engineering student tasked to continue the project. i dont really understand electrical stuff beside the very basic ...
- 49
1
vote
2
answers
165
views
Getting rid of AC DC adapters
Getting rid of AC/DC adapters
I'm aware of the above question but feel it didn't address my situation.
Note: Robot meant to be an underwater ROV(Remotely operated vehicle)
I'm designing a robot and ...
- 21
0
votes
1
answer
162
views
Estimate electromagnetic emission due to current in wire
I am working on a project that will need to pass CEM requirements.
I would like to "estimate", as in, get an order of magnitude of the electromagnetic emission.
The device include 2 parts. ...
- 101
2
votes
1
answer
341
views
CCTV cable power rating?
I want to know whether I can use this d-link 3+1 CCTV cable for powering an led strip which runs at 12 volts 1 amp. The led strip is approximately 12 meters away from the smps power adapter. I checked ...
- 690
0
votes
3
answers
2k
views
Can increasing the wire gauge reduce your electric bill?
I was in a seminar and heard the presenter say something I am not able to understand. The statement was that if you use a higher gauge wire it would help reduce your electricity bill. Since I was not ...
- 917
0
votes
0
answers
426
views
Can 23/76 wire handle 12V 6A power? I have looked at several tables but cannot find answer
There is nowhere which concretely tells me if 23/76 is sufficient for 12 V 6 amps power. Is it okay to use 23/76 wire for 12 V 6 A?
1
vote
2
answers
15k
views
What wire should I use to carry 12 V, 2 A power?
I am working on wiring a 12 V, 2 A power supply to a DC linear actuator (both linked below), but I do not know what wire to use. Will 22 gauge wire work, or is there a different gauge or type to fit ...
- 13
-1
votes
2
answers
270
views
Can I power a 35 Watt light fixture over a thermostat 5-wire?
I would like to add this light fixture to my ceiling in an area that only has a thermostat 5-wire coming out (something like this). (The other end of the thermostat wire travels about 15 feet, ending ...
- 1
0
votes
0
answers
45
views
Selecting the correct wire for very short power transmission
Looking for the thinnest wire for very short distance power transmission.
Supply is 5V, 10A. Ambient temperature is 35C.
There are 5 consuming elements, each consuming 10W.
The elements are linked ...
- 2,127