Questions tagged [wire]

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

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2answers
59 views

Using a terminal GND or VCC for multiple boards

If I have a screw terminal block like in the picture below, is it normal practice to use one of the six connections for GND towards multiple external boards? E.g. I wrap three wires into the ...
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49 views

AWG 30 cable distance for 3.3V from ESP32

I'm planing to put some magnetic switches on my windows and pulling the wires up to the attic and use an ESP32 to notify via MQTT when they are opened/closed. I went to my local electronics store and ...
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0answers
70 views

Replacing wire in an electrical circuit with EL wire [closed]

I'm a bit new to EL wire and want to replace some standard copper wire in a circuit with EL wire for functional purposes. Can I just replace the copper wire with the EL wire and solder the ends, a ...
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3answers
174 views

Voltage propagation along a wire

Let's say you have a wire connected to a device that you can switch between high-voltage and ground voltage. The wire is not connected to anything on the other end. You're observing the voltage in two ...
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7answers
145 views

Wire capacity - Total power or just current?

So I've gotten myself into a healthy, educational Facebook discussion. Link is here if you're a member of that group. When I thought about it, everyone defines wire capacity by current only. The ...
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1answer
69 views

What is the current capacity of this cable?

This is a 8 wire 0.5mm2 cable (insulator is PVC), there's 17 strings of copper in each wire. I couldn't find the current capacity of this specific wire on their website but their 1.5mm2 x 8 cables ...
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2answers
63 views

Current capacity for Kanthal wire

I was given a Ceramics Kiln that is designed for 208V and I am trying to see if there is a way I can run it at 240V. It has 6 elements made of 16AWG Kanthal APM resistance heating wire. Each element ...
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1answer
107 views

Why does the max current capacity decrease with the number of cores for the same AWG?

I couldn’t find a similar or duplicate question yet but regarding this table for instance a 24 AWG wire can carry max 3.5A current if it is single core. But if it is seven core it can only carry max 1....
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2answers
66 views

What's the suitable wire size for 9VDC @25 Amps line?

I am trying to put together the requirements for a cable and I was wondering what would be the most suitable wire size to load the DUT with 25Amps @ 9VDC. I will have few other high current lines ...
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1answer
26 views

Joining power jack wire to charging port

Do I need to weld the charging port to the wires of the broken power jack. Because this is not working. The LED of the power button just goes off and on occasionally with this. Is it necessary that I ...
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1answer
178 views

How to test conductivity of copper wire? [closed]

I purchased 90 meters of 0.35mm2 stranded copper conductor wire. How can I test this wire for conductivity to ensure quality copper was used?
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1answer
68 views

Bridge wire for soldering

I saw in a video that the person was using something he called bridge wire to solder a pcb with. I was wondering what kind if wire is used as a bridge to do the connection between components? Here ...
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1answer
108 views

How do you make crossing wires not connect in EAGLE? [closed]

I am brand new to PCB designing (started yesterday) and am doing it as a fun little side project. My goal is to produce a working PCB that has a very basic function. My problem is this: I have no ...
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1answer
44 views

Altium - Handling Multiple net names for buses

I'm confused on how to solve this warning on Altium. ...
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2answers
44 views

Condutive clamp or similar?

I have a sheet of annodized metal that I need to connect a wire to. In the past I have tried wire glue and soldering but each are really ineffective in their own ways. Soldering is slow and best for ...
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2answers
49 views

Connecting four wires to and from SMT PCB

I have a strange situation where I need to modify a signal through my own PCB board and then output it through a new set of connectors / wires. The problem is i am a self-taught electrical engineer, ...
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1answer
65 views

Can we use long wires with ultrasonic module HC-SR04

I want to use Ultrasonic module HC-SR04 as ranging sensor but my MCU board is approx 80 ft away from the place where I have to put the US module. These are its pin-outs and descriptions: My ranging ...
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1answer
40 views

Wire gauge and combined wires for 3D printer hotend through PCB

So I've been designing a wiring harness PCB for my 3D printer to provide connections and easily swappable tools. I settled on a TE 34-pin connector to use as input on the PCB. The current design ...
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39 views

LED Strip - Wire Size & LED Controller

First Question: I bought a few rolls of high density 5M individually adjustable LED strips - 14.4 Watts/M @ 24V which equals to 0.6A per meter. I was advised I could run up to 10M in series which is ...
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64 views

How to find the right connector?

I have gotten the task of finding an appropriate connector for our application, but given so much information there is on connectors, I don't even know which information is relevant. So this is the ...
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2answers
70 views

What is this connector called and how do I open it?

And how do I open it to put in a wire? And can I use stranded wire or should i crimp (it's so small ferrule connectors dont fit)
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1answer
81 views

Is this mains switch on the Neutral or on the Live wire? [closed]

I'm changing the chandelier in my living room and I would like to double check whether its switch is on the live or on the neutral wire. I have a test lamp which is rated to measure 125-250V. There ...
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4answers
676 views

Does the neutral wire have any voltage?

In this article, the author talks about 3 phase and the magic of a missing neutral wire. And there's the following paragraph: In a 3-phase system the voltage between any two phases is 3 times ...
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1answer
48 views

Effect of wire gauge change on thermocouple measurement

I'm working on attaching to a thermocouple harness that had six 16AWG chromel wires and one 12AWG Alumel. The alumel would T off with each of the chromel wires to make a pairing and so the common was ...
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2answers
70 views

Can I connect 10 AWG wire carrying up to 25 amps to 10 parallel 1 ohm 10 watt resistors?

I am trying to measure the charge capacity of some LTO battery cells. To do this I want to discharge each battery cell from 2.5 V to 1.7 V. I am going to measure and log the current over the discharge ...
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36 views

RaspberryPi: Load cells and HX711 amplifier

I've created an app that will read 10 weighing scales at the same time with separate values but since some wires are like 1 meter long, I get so much noises in the values. I just wanna know if what's ...
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3answers
69 views

Copper wire current ratings [duplicate]

I have seen a wide variety of different estimates for the maximum current rating for copper wire. For example, for 24-gauge copper wire, the Wikipedia article about "American wire gauge" claims that ...
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2answers
85 views

What is the purpose of cylinder “second power bricks” on cords? [duplicate]

I have noticed a large number of power cords that have a PSU built into them also have a second brick on them. What is the purpose of this "second power brick"? Example, Xbox 360 Power Adapter: I ...
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2answers
29 views

Female to female jumper wires

Where are female to female jumper wires used? They only have provision to allow other wires to be plugged into so cannot be used on breadboards. So, practically, where are they used?
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1answer
57 views

Use of multi-strand wire with terminals

I have a question regarding multi-strand wires. I use wires starting from 0.34 Sq mm to 6 Sq mm in my electrical cabinets. While connecting these wires in terminals, is it recommended to twist the ...
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2answers
140 views

The art of using breadboard

I am making a circuit for converting analog to digital signals using an ADC0808. This IC has 28 pins, and my circuit also includes a 555 timer and some LEDs to display the output. The high number of ...
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3answers
138 views

What is this part of the wire called?

I have no idea what this part is called. I want to figure out if I can remove the wire out of it and slide in the other broken end before soldering it the board. Is it reusable, or do I need to buy ...
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2answers
107 views

Joining high current wires outdoors

I am conducting an experiment where I would like to heat up 18 AWG copper cables outdoors using to 50-60°C using 60 amps. The wires are wrapped with teflon to prevent damage to the cable. Can I use a ...
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1answer
70 views

Parasitic Inductance

when we say that in a wire there is a parasitic inductance, what is its cause? Is it the skin effect of the wire, the magnetic flux (generated by the current) through the surface of the total circuit ...
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1answer
188 views

On a wire designated as '3x14AWG' what does the '3x' part mean?

On a wire designated as '3x14AWG' what does the '3x' part mean? It is on a wire that is part of a surge protector power strip.
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1answer
82 views

connector between copper wire and very small silver wire

I have a scientific piece of equipment that has very thin silver wire (they are 0.008'' in diameter, with teflon coating, for a total outer diameter of 0.011''). I need to connect this equipment to ...
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46 views

What kind of connector can be used for 1.5 mm jack

I recently bought this product. The jack is of 1.5 mm in this. I have tried to use all kinds of wires inside this jack but none of them fit properly. The standard male to male wires are also too loose ...
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1answer
104 views

Strongest electrical wire at AWG 24

Is there any ultra strong electrical wire at about AWG24 (0.22mm)? I want something that would be strong as a steel wire rope but also with low resistance that can used as electrical wire.
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2answers
45 views

Connecting two wires to a DC 12v port on a controller board with 4 pads for a monitor

Sorry, the question was difficult to word. Basically I recently bought a controller board for a monitor and the DC cable I got wasn't correct. So until I get the right part, I just want to test the ...
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1answer
86 views

Splicing 24 awg wires - wire and tool selection

I'm working on a raspberry pi project - a sump pit monitor that sends an emergency email if a float switch above the point where the water triggers the pump is switched (purely for monitoring, not ...
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1answer
41 views

Mixing wire gauge questions

I am putting a 50W 3.4A max 12V solar panel on my camper van. I want the option of removing it from my roof racks & mounting it remotely (so I can park in shade, but still have the panel in the ...
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3answers
70 views

Wire size question

I am trying to figure out AWG from a European/German schematic. The wire is listed as 0,3mm. (That's 0 (comma) 3mm.) I can find wire for sale in this diameter, but I need a reference to AWG. Is ...
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2answers
133 views

What determines the frequency of network cable

You have Cat6, 23 AWG, rated for 250Mhz frequency. You then have Cat6a, 23 AWG, rated for 500Mhz. Both are unshielded. How is Cat6a able to transmit data at a higher frequency then its counter part? ...
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1answer
63 views

Is it possible to use the same RJ-45 connector?

Given that the wires are connected to the pins and crimped with a crimp tool; is it possible to "un-crimp" the wires such that they can be unattached from the RJ-45 connector? Whereafter the connector ...
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2answers
47 views

Closing 1s battery connector

I have a drone that can plug two 1s batteries. I have the option the plug only one battery but I need to "close" the other battery input with the following (image). I have no idea how this is called. ...
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2answers
145 views

How to regulate voltage of transformer output for nichrome wire

I have a basic CNC machine for cutting EPS foam which uses about 9.5in/23.5cm long straight 28 gauge Nichrome wire as the cutting element. The nichrome wire is powered independently with a 220V-36V 5A ...
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1answer
56 views

Wire ferrule installation woes

So, I have some 1mm2 (cataloged in the USA as 17AWG) fine strand (259 * 0.07mm) test lead wire that I am trying to adapt to Eurostyle terminal blocks (which I can then adapt to other things, such as ...
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0answers
81 views

Is there a limit on the current carrying capacity of a wire?

Obviously, for continuous current there is - the melting point. If it is superconducting, the field strength at which it quenches. OTOH if we specify a pulse of arbitrarily short timescale in order to ...
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1answer
49 views

RV Off-Grid Electrical System Wire Gauge Sizing

I'm working on building a Tesla battery powered off-grid system in our Airstream 22FB Sport. The idea is to be able to run the 120V AC system from the 5.2KV Tesla battery which is with the existing ...
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45 views

Power problems related to copper wires and pigtails

I am using a battery to power a odroid which requires 5V/4A. The battery voltage when measured using a multimeter was around 26.7. I had two setups: I used a 1 sq mm copper current carrying wire to ...