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

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7
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1answer
356 views

power cable: more strands, or bigger strands?

I have two types of 4awg wire to chose from to wire an inverter in my jeep. One of them has about a dozen 20awg wires inside of it, and the other has about 100 super little wires inside of it. Both ...
-2
votes
3answers
342 views

Prevent Water Piping from Freezing (price is everything) [closed]

I realise that there are a bunch of specific pre-made solutions for preventing pipe freezing but I think I should be able to do it way cheaper myself (I am assuming that the pre-made stuff has quite a ...
4
votes
3answers
4k views

If a wire is rated 10A, 120v AC. How many amps could I put through it of 13.8v DC?

I am using a wire that is rated 10Amps at 120v ACwith a car headlight and a SLA battery. About how many amps could this wire carry before getting warm or melting of DC current at 13.8volts?
1
vote
2answers
9k views

Fixing/Replacing Conductor Ribbon Cable

I tried to fix a keyboard that was having some intermittent issues by cleaning the conductors on the ribbon cable. I used an emery-board to rub off the rust and patina on the pins at the end of the ...
2
votes
2answers
158 views

individual ethernet cable wire uses

I'm going to use ethernet cable as a long range cable for serial (5v) and power (5V and 16V, almost no A) and I remember reading that because of the loops in the wire and the impedance effect some ...
-2
votes
2answers
18k views

4 colored wires in a cellphone charger [closed]

I'm trying to recycle an old cell phone charger to power something else. I've cut the tip off and I see 4 wires... with following colors: red, green, blue, and yellow. I can't figure out which ones ...
1
vote
1answer
62 views

How long a lead may be used to connect a component to a circuit?

When out of town I'm thinking of using an LDR with a 555-relay driver to periodically toggle the lights in a few rooms at night, and a thermistor near an incandescent bulb to kill the circuit when the ...
3
votes
2answers
1k views

What use is the reference node in nodal analysis?

Rules for identifying a reference node in a nodal analysis of a circuit include; Node with largest # of elements Max # of voltage sources Node of symmetry My question is, whats the point?
2
votes
2answers
452 views

How to fix a broken sub connection and wire?

The wire connecting to my sub has snapped off, and it brought the metal connector piece with it. I don't want to buy a new sub, but it looks like this is going to be hard to repair. Anyone have ...
5
votes
3answers
403 views

Name of connector for attaching to bolt

I have a heating element (essentially a very resistive wire) that has two threaded bolt-like connectors on each end. I want to avoid soldering any components of the heating element, so I asked a ...
2
votes
1answer
188 views

Is it possibile to manually wire a displayport cable?

I have to pass such a cable trought a small hole in a wall. Since that the connector is to big to pass trough, the only way to do so is to cut the cable, pass it and than wire it manually. Do I have ...
4
votes
3answers
5k views

How can I find out which wires are the primary wires on this transformer?

About the amp: This is from an old solid state audio amplifier with an AM/FM tuner. No digital parts or ICs were inside. It was all point to point. Unfortunately I threw out the amp and didn't write ...
6
votes
1answer
662 views

Difficulties of I2C over wire

I want to link a PIC16F1825 and a TCN75 temperature sensor via I2C. The temperature sensor is about 1m from the MCU. Can somebody enlighten me on whether and what kind of difficulties I am going to ...
16
votes
5answers
4k views

Standard wire colors

I am fairly new to "electrical" engineering as a hobby/ past time. I have always loved electricity and have made simple circuits since I was a little baby. I am now working on one of my first ...
5
votes
2answers
3k views

What does A x B mean when referring to wire strand count?

Stranded wire is often specified using two numbers in the format A x B. For example, 16 AWG wire might come with a 19 x 29 strand count. What do the first and second numbers mean?
22
votes
2answers
1k views

Alternatives to SPI because of EMI

I currently make a system consisting of a plastic enclosure which contains an MCU talking to 7 ADCs using 2MHz SPI over wires about 5cm long. The problem is that I'm concerned about EMI. ...
0
votes
1answer
891 views

about power supply on what length of copper wire we should use

Could you help me on the equivalent current of three phase alternating current having 400v( volt ), 530 kw power and the available cross-sectional area of a copper wire, its length 350 m for carring ...
1
vote
1answer
2k views

Speaker wires to 3.5mm plug [closed]

I have 4 speakers wires: left red wire right red wire left black wire right black wire Like this: I want to take those 4 wires, and make a 3.5mm stereo RCA plug for my iPod. So that I will be ...
3
votes
2answers
4k views

Which is the best, clean way to join wire together

I am installing CCTV cameras and I'm using a 3A adapter to supply power to the cameras, but I have very messy results when trying to join together very small wires with electrical tape. Is there any ...
1
vote
1answer
131 views

Is there any wire with many small wires which i can use for multiple video signal

I have 6-7 cameras at one location. The problem is i don't want to have separate cable for 8 different cameras comming to my room. I am looking for one big wire in which i can have small 12-14 wires ...
0
votes
1answer
116 views

Using Ethernet wires for DIO

I have multiple devices that need a DIO connection with 8 wires back to a central device. Would using an Ethernet cable for this purpose be reliable, or would using something like DB9 connectors be ...
0
votes
1answer
107 views

Welding Cable for Power Bus

I am considering using 2AWG welding cable from MC Master as the main power lines in a solar car. From everything that I could tell the specs are better than standard cable or battery cable, it is ...
7
votes
5answers
15k views

What gauge of single strand wire works well with breadboards?

I brought some single strand wires hoping to prototype on the breadboards. Unfortunately it was too small to properly fit into the breadboard holes. So my question is which gauge fits well on those ...
3
votes
2answers
16k views

Solder doesn't stick wires to connectors

I'm always having problems soldering wires to connectors. I've read through the Solder wont stick question, but nothing there seems to have helped. Here's my procedure: If the connector is being ...
-1
votes
1answer
178 views

13+ wire DB-25 or DB-15 cable

I can't find an answer to this anywhere so I thought I'd ask around here. I need a cable with 13 or more wires in it, preferably with a DB-15 or DB-25 connector, but I can't find one anywhere. I ...
3
votes
2answers
12k views

How to calculate thickness of cable based on material and current?

How thick copper cable should I use for 16A current? How thick it should be if I use aluminum wire? Is there any generic equation which I can use? I am using direct current with 12V but as far as I ...
2
votes
3answers
620 views

How to connect GPS module to usb cable

I need help with connecting this module with USB cable or serial cable. What do I need to connect? What channels? EDIT: Okay guys I see that you think that this gps in not so good. How about this ...
3
votes
4answers
8k views

Thin wires - tips for stripping and soldering?

Any tips for stripping and soldering thin, tiny wires like these below, (maybe even thinner!)? Initially, I would think of using a knife for stripping because wire strippers will definitely not ...
3
votes
2answers
306 views

Electro-Mechanical Connection: from screw straight up to electrical-wire?

I am developing a system that includes aircraft cables with threaded studs - screw endings that are used for mounting. Here is a picture of the stud connected to a cable: Now I am searching for an ...
1
vote
2answers
1k views

Best size of shrink wrap

I'm attempting to shrink wrap wire connections for the first time and I am wondering what size of shrink wrap is needed for i.e. a single 22 AWG wire. Could it be any shrink wrap tubing that fits the ...
2
votes
3answers
5k views

Splicing tiny wire inside broken mouse cable

I don't know a lot about electronics repairs, but I've got a relatively expensive laser mouse that got a frayed connection on the wire: I'm wanting to repair it as it's out of warranty. I've cut ...
2
votes
1answer
3k views

Connecting a sata cable to a usb hard drive circuit board

I am trying to connect a USB harddrive to a sata cable by attaching the sata cable to the drive circuit board and only using the usb to power the drive. This is for data recovery. For reference I am ...
3
votes
2answers
575 views

What Would I Need Electrical Wire Testing Hooks For?

I want to buy accessories for soldering but was curious about electrical wire testing hooks: What are they for? For picking hard to access little wires? How do i work with them?
1
vote
1answer
142 views

Need help identifying some sort of “wire”

I just disassembled my Android Galaxy S in attempt to create something like the iPhones physical sound on\off switch. This is how the unplugged speaker looks like: Until now I have learned the ...
10
votes
4answers
2k views

How to know that I am grounded with an anti-static wrist strap?

The resistance of my Belkin anti-static wrist strap shows 0.983, but how do I know that I am grounded by attaching it to computer power supply alone? See the picture below. How do I know if that ...
2
votes
3answers
408 views

Suggestion for an easy-to-use connector+cable for simple hobbyist sensor project

I'm implementing, as a hobby, a simple data logger. I previously asked a question about running a ~10m cable to the MCU for a Dallas/Maxim 1Wire sensor (and therefore 3 wires, since I'm not going to ...
4
votes
4answers
609 views

Protecting low power cables from heat

I need to install a cable which will come in contact with a central heating pipe. It is 2 core carrying 5V, 500mA DC power to a simple circuit that can't run on batteries. The pipe could get to 82 ...
4
votes
3answers
8k views

Why is there a voltage drop in a twisted pair wires of an UTP cat.5 cable?

I put 12V DC through a pair of twisted wires of a 50 meters (~160 feet) UTP cat.5 cable and noticed that there was a voltage drop at the other end of the cable. It only had 5V. If I'm feeding the same ...
1
vote
3answers
854 views

Choosing the right type of wire?

I am going to have a something thats runs on 120vac pulling 1-2amps is there a chart or something for choosing the right gauge of wire? The wire will run from an inverter in the front of my car(by ...
4
votes
3answers
3k views

Why would a power cable need copper wire shielding?

Today I witnessed burying 10 kilovolt power cable in the ground. I noted the cable mark and Googled it. The description is rather interesting. It's a single conductor cable - it takes three such ...
1
vote
1answer
458 views

At DC frequency, how long can wire be until signal attenuates almost completely?

Just got curious about this last night when I was wiring a couple of LEDs on my brother's long board. For a simple DC circuit (Battery, resistor, LED), how long can I stretch the wire until the power ...
2
votes
2answers
821 views

Ideas to connect wires at 90deg without solder?

I'm in the process of building a 16x16x16 LED cube and am looking for a way to connect two wires at a 90 degree angle (e.g. +) without soldering them together. The ...
4
votes
1answer
2k views

a strand of usb cable is yellow not black

I cut the wire of a USB keyboard to supply 5V power to my Arduino. I expected to find Red wire for +5V, Black for GND, White for D-, and Green for D+. However, there is no Black, instead, there is a ...
5
votes
6answers
1k views

How to fuse wires into single solid thread?

I'm trying my first real project with an arduino of my own design/idea. I come from a CS background this EE stuff is both exciting and scary. I'm trying to wire up a 3.5mm female audio jack to the ...
3
votes
3answers
479 views

Are jumper wires just wires with insulation cut off on both ends?

Is there a specific purpose for jumper wires like these where they have female pins at the ends? I'm assuming they are mainly useful when you want to chop a wire into something like a breadboard, but ...
1
vote
1answer
197 views

relationship between temperture, current, thickness, and material

I used lan cable for light LED up on my bread board power source is PC's power supply. without any resistor, the lan cable melt! I reallize I have to keep OHM's law in my mind and use proper ...
3
votes
2answers
367 views

Lengthen a AC to microUSB phone charger cord?

Can I effectively take a 3 ft standard cell phone charger (AC to microUSB, 750 mA at 5V) and lengthen the cord to 6 ft by splicing the cord or am I going to lose something in the mix? Do I need to ...
4
votes
4answers
5k views

what size of copper wire can act as a 150A fuse?

If I would like to use a piece of copper wire as a 150A fuse, what size of wire should I use? It doesn't have to be 150A very accurately, the parameters I need the wire to meet are: it needs to ...
4
votes
2answers
301 views

What are these wires with pre-attached connectors called?

What are these connectors commonly called, and what would I search for if I wanted to buy sets of male/female pairs with a specific gauge of wire pre-attached?
9
votes
5answers
1k views

Tips for keeping lots of cables tidy

I'm working on a project with a lot of external peripherals, so this means lots of wires. Any recommendations on how to keep them tidy while working on it? I don't want to use cable ties just yet, as ...