Questions tagged [wire]

A length of conductive material used as a conductor of electricity.

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1answer
160 views

What kind of wire is this? Copper wire with some kind of wool in it

I am trying to repair broken headphone wire with this amazon thing. Here is the first pic showing what I am trying to do: I made sure that black wire is working by playing something on the phone and ...
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3answers
222 views

Looking for thin guage wire that is stiff, conductive, and solderable [closed]

I have an application where a small daughter board is elevated and needs very minimal support. The supports for the board need to be very thin, as stiff as possible, electrically conductive and ...
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7 views

How to split a 220v wire? [migrated]

Tldr: I want to 3 way connect an electrical wire and I don’t know what’s the best connection solution. I don’t know if I’m missing some vocabulary or why I can’t find an easy solution for this online. ...
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62 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?
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178 views

My soldering iron only has one wire coming out from the top and it has a clip at the end. How do I power this?

Can't figure out why or what or how it works.
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44 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 ...
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3answers
113 views

Should we use flat ribbon wire cable for power?

The main scope of this question is about hobby 3D printer. The element in scope are 10K NTC thermistor for temperature sensor Stepper motor NEMA17 required about 1.0 A Hotend heater 12V 40W required ...
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1answer
69 views

What type of wire can I use to run 5V, 30A to my Arduino controlled relay module over a distance of 10-12m?

I'm building an Arduino-controlled Christmas light show. I power my 16-channel relay module with a 5V, 30A supply. It is placed outside the house and I want to place its power supply powering the ...
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3answers
119 views

Can an insulated copper wire oxidize down its entire length?

I was doing some electrical wiring on a trailer today and was surprised to see black instead of shiny copper when I cut and stripped a section from the middle of a long section of uninterrupted wire. ...
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1answer
61 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 ...
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2answers
211 views

WS2811 series: power consumption and voltage drop

I recently bought some WS2811 LED strips (these). I intend to connect 6 in series (6 * 50 = 300 leds), and I have some questions. In the datasheet and on the Amazon page it is written that each LED ...
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4answers
1k views

With enough copper wire, can I attach one end to one side of a 9V battery, then circle the earth and connect it back?

This is a dead serious question I have not been able to find an answer to: if I had enough wire, could I make electricity pass through if I connected one end to a small 9V battery and then circled the ...
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2answers
75 views

Soldering wire directly to a PCB through hole vias, what is acceptable proximity tolerance?

The wire gauge is 16 AWG. The hole size is 63 mil, and the overall via diameter is 98.5 mil. What is the minimum spacing between two of these for voltage levels of 0-12V and 0-160V circuits? I think I ...
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3answers
77 views

Signals transmission

If I have more than one sensor that provides a digital output (1 or 0 only,) and I only have one pair of wires connected from all the sensors to a specific point (assume the sensors are at point A and ...
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1answer
96 views

How to remove 800 kHz signal noise in long wires?

I have a simple setup with Raspberry PI and level shifter chip (3 V to 5 V), connected to some neopixel LEDs via ribbon cable (~30 cm in length) and then with thin solid copper wires (varying from ~10 ...
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3answers
204 views

Why so much space around these toroid windings?

I have recently noticed some toroids wound with what I consider to be huge space left over, and I am asking if there is any good reason to do this. (or even an acceptable reason would do). My thoughts ...
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4answers
87 views

Positive and ground different wire thickness

Preface: I'm a beginner. Do positive and ground need the same wire thickness? Is it safe is use ground wires that are thinner than the positive? I think I understand that for a given amount of current,...
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0answers
38 views

Wire guage 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 ...
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1answer
144 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 ...
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1answer
38 views

What is Multimode Delay Distortion?

I understand that the data has been distorted through the multimode fiber but is this due to a bandwidth that is longer than what the fiber can handle? What causes the distortion and how is it dealt ...
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1answer
105 views

Is there a formula to calculate the saturation current of an inductor or is it only obtained experimentally?

I want to make an inductor for my buck converter since I cannot obtain the recommended inductors for the LM2596. How do I calculate the saturation current for this inductor if I use a ferrite core? ...
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62 views

Can green color of (enameled) magnet wire be a sign of degradation?

I know that some healthy manufactured magnet wires are green. But sometimes in transformers and electric motors and other components/devices I see that some parts of the magnet wire are green and ...
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1answer
80 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.
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2answers
2k views

What is this wire connector/terminal called?

Could you please tell me the name of the red wire connector/terminal shown in the picture?
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2answers
141 views

Solid Faraday cage with a hole for a wire

Is it possible to make a solid Faraday cage with a hole for a wire (to transmit information inside)? What is needed to prevent electromagnetic waves from going through the hole?
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2answers
666 views

Long vs short wire when using DC

My knowledge of electricity is hobby level, maybe even less. In a powersystem that runs entirely off Direct Current, powered by a 600 mAh lithion battery, imagine the following scenario: ...
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0answers
72 views

Heat concerns using 12/14 AWG wire for 30A 5V DC power over shorter distances?

I’m hoping for some advice on wire gauges in practice with respect to heat/safety. I am planning an LED strip setup and have created the following diagram: The setup is designed to be modular, A ...
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1answer
66 views

What are the possibilities to increase temperature of resistive wire?

I recently got stuck on heating up a resistance wire. I have 80cm long resistance wire (from hair dryer) that I need to heat up to about 160°C. Currently I have a battery pack that produces 33.6V DC ...
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1answer
395 views

Calculate the temperature rise in a wire due to current

An insulated wire, if I pass a current at a given voltage, what will the temperature rise be. Below is what I think I understand so far ... I'm assuming the insulated wire is a 5 m long single ...
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1answer
186 views

stranded wire resistance compared to solid wire

Why is it that a stranded wire has higher resistance than a solid wire? Although the area of the stranded is more which means more skin? ""The resistance of the stranded conductor is ...
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1answer
61 views

How to balance resistance between speaker wires made of copper fabric?

I'm working on an art installation where the speaker wires are made of a copper fabric material, a relatively high resistance material. I understand this is not ideal for speakers, but due to ...
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2answers
85 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'...
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1answer
92 views

Can steel nails be substituted for the silicon steel laminate in a motor/generator/alternator?

This is as diagram of a generator/alternator in which steel nails are used in place of silicon steel laminates:
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2answers
98 views

Is there a design tool that tells you what gauge of wire to use? [closed]

Do any circuitry design tools (5spice, etc.) have a feature that tells you what currents you'll have in each wire/cable, and recommend therefore which gauge of wire or type of cable to use for each ...
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0answers
64 views

Can green goo discharged from cables through PVC and copper reaction be cleaned by electrical contact cleaner?

I have an old power supply but the wires have a green slime (goo) discharge running through it and in the pins as well, I want to clean it so it can have good conductivity, however, after researching, ...
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0answers
88 views

Stray voltage on light fixture

I have installed a led panel on a previously existing light pole in my house. It has the feature of switching light colors if you flip the switch quickly. If the switch is left off for some time and ...
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3answers
449 views

KitchenAid: Do not use an extension cord [closed]

I recently bought a KitchenAid mixer and it has a 2 ft cord, which is pretty short, especially for someone with a big kitchen. The instructions for the mixer say not to use an extension cord. They say ...
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2answers
71 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 ...
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1answer
115 views

Connect 2mm copper wires electrically for 36kHz

I want to build a indoor non-moving Faraday cage against 36kHz electric fields with a 2mm diameter copper wire. I will have several T-junctions where there is a running wire and an end of a wire comes ...
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2answers
80 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 ...
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3answers
174 views

Extra pin for shielding with CAN bus connector

I am presently using a 4 wire bus for CAN (CANH,CANL,PWR,GND). This is used all across the design for various boards. Now the cable needs to be shielded. Would this imply using 5 pin connectors and ...
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0answers
44 views

Does a 12V cable of an ATX power supply have an overcurrent protection on its own when more current is drawn than the cable could withstand?

I want to use an old ATX power supply to power a project of mine. For that I'd like to utilize a single 12V cable from the 20 pin connector which is 18 awg and therefore can safely handle around 6 ...
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0answers
72 views

Is it safe to reconnect burnt wire in tower fan?

I have a tower fan which was starting and stoping at intervals. Taking it apart, I found that a wire connecting the mains plug to the appliance has burnt in half. You can see the blue wire at the ...
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1answer
53 views

What are the effects of small spark gaps on connectors?

I was reading about the '4th Pin' problem that effects almost all modern iPhone users. It is where the 4th pin on the lightning connector turn black and eventually will not work until it is scraped or ...
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3answers
39 views

Capacitive load of connecting cable for a temperature sensor

An LM35 temperature sensor is 4m removed from the Arduino to connect it too. The available cable has 4 wires with a diameter of 0.6mm (0.28 mm2 area) as well as a, seemingly aluminum, shield . The ...
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1answer
65 views

how to make wire bend easier to wrap inductors?

enter image description here so obviously, the wire is thick (for a wire) how to make it easier to wrap around a core?
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3answers
166 views

Decreasing I2C SDA SCL interference

I am setting up a fast I2C communication between a microcontroller (STM32, master) and an FPGA (Zynq-7000, slave). Currently, it won't work correctly because whenever the FPGA pulls down SDA, it ...
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1answer
63 views

Gauging Wire for 12V Parallel Circuit

I'm building a 12V parallel circuit to run some LEDs...I simplified it in the picture below but need some advice on wire sizing in a parallel circuit. The combined amps of the 3 lights is ~11.25amps. ...
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1answer
43 views

No deflection in voltage regulator but the circuit works fine [closed]

I have connected a voltage regulator (range 0- 300V) to my Air conditioner. The Air conditioner has three wires neutral,live and Earth. (I doubt if the connection is right). The Air conditioner turns ...
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1answer
58 views

Can someone help me identify the is connector?

I'm repairing an old coffee machine and one of the wires came out the its connector. I'd like to order the connector and the proper crimps to repair it but I'm unsure of which type/size to order. Here ...

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