Questions tagged [wiring]

How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques

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3answers
674 views

Is it safe to bypass a battery?

I have an old camera which Im tinkering with and when I opened it up I found that the battery (liPo) is puffy. As I dont have a spare I can't replace it and Im beginning to doubt myself that its safe ...
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1answer
93 views

What is the purpose of these coils in contactor auxiliary contacts?

Can someone please tell me what the function of this module, and more specifically, the curley wires on top of this contactor? It looks like the wires go to the same terminals as the main contactor ...
2
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1answer
315 views

Connecting laptop webcam 04081 to USB cable

After seeing some youtube videos, I wanted to reuse an old laptop webcam and solder it to a USB cable. This one comes from an ASUS X301A and looks like this: AFAIK, The USB cable needs 4 wirings: ...
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1answer
100 views

Can I replace a 32 A switch with a 32 A MCB?

A switch for a water heater in my apartment is broken (image attached). It is an "Anchor Roma 32 Amp 1-Way Switch with indicator". Can I replace it with this or this switch? Would the installation ...
0
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1answer
114 views

Wiring diagram - what is the meaning of stacked arrows?

I'm trying to figure out whether the stacked arrows means the conductors are twisted together?
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1answer
316 views

Generator to Main changeover issue RCCB not moving up

RCCB not moving to up position while DG to EB ( generator to mains) changeover. I live in a community where we have almost 1200 apartments in India which will serve power through generators when the ...
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3answers
116 views

European Cooktop for use in US split phase

I was wondering if someone could give me some advice. I'm an architect so I only know so much about electrical engineering. I have this cooktop I ordered from Italy, it's an induction cooktop that's ...
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0answers
43 views

wiring for my timer switch

I'm trying to wire as per the following wiring diagram. I completed wiring as below, and timer is switching on, but at the programmed time, light is not switching on, anything wrong with wiring. See ...
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1answer
51 views

Trying to understand schematics

I'm making a guitar pedal project, and I have a very basic understanding of electronics, so I'm having a hard time understanding some of the logic behind the schematic I have. Why would I need to ...
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1answer
75 views

Connecting a preamp to computer

I've made a single transistor preamp for an electret mic. The curcuit is like this: simulate this circuit – Schematic created using CircuitLab I want to use this on a computer. The mic input of ...
0
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1answer
118 views

Can I wire these automotive peltier heating/cooling devices as on/off without a temperature controller?

I have an seat removed from a Lincoln MKX that I mounted using scrap wood and heavy casters to use as an office chair that has power adjustment as well as Peltier heating/cooling components in the ...
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1answer
59 views

can I use DC battery cable rated at 600A to connect a 63A main AC breaker to a 40A RCCB in my distribution panel?

I've read that for low voltage (less than 400V) applications, that the main difference between DC and AC wire is basically in the (temperature) rating of the cable sheath. If this is true, then the ...
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1answer
64 views

How to implement unsigned subtraction using 2's complement?

I want to implement unsigned subtraction using 2's complement. I arrived to this, where if I have 2 4-bit binary numbers A and B, I transform B to 2's complement (let us name it B' so we don't get ...
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2answers
315 views

Wiring diagram for laboratory-related aquarium equipment (PID, SSR..)

I am currently in the process of constructing a "thermal aquarium chamber", used to study the responses of various species to warming temperatures in their aquatic environment. The idea is to control ...
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1answer
41 views

E3JK-R2R3 wiring

Hi, this is E3JK-R2R3, brown and blue connect to power supply. I wanted to know is it either black or brown connect to +load and the white connect to 0V? If is it so, I don't see the electric flow.
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3answers
160 views

Got 2 gang light switch, common load, design circuit to know ON/OFF state of switches on each wire

Goal is to be able to use standard wall 2 gang light switch to: a) provide line connection with either of two / both hot wires coming from the same 230VAC phase to the ceiling for AC-DC 48V PSU ...
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0answers
483 views

Wiring problem while making couple of USB Type-C cables

1. USB TYPE-C to USB 2.0 Standard-A Cable Found this TYPE-C connector parts w/ 56k resistor from taobao, but there is no detailed circuit diagram on it. I want to make USB TYPE-C(device) to USB 2.0 ...
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0answers
135 views

Help rewiring mouse usb-cable shield

I am an IT student and that means I do not have lots of money and I use my mouse a lot. However, about a month ago my mouse starting randomly diconnecting and it got worse and worse to the point where ...
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3answers
63 views

Electric cable for bicycles

I am using dynamo on my bicycle to power the lights, as I hate using batteries. This serves me OK, apart from the fact I have constant problems with the end of cables. The end of the copper braid (...
0
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1answer
44 views

Wiring confusion in joining two cables with 5.5 x 2.1 mm DC male ends, please explain

I've got a 12V powerbank that I would like to use with a 12v device. The power bank output and the device both require 5.5 x 2.1mm male plugs. I've actually got some random cables and have found two ...
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0answers
64 views

How to power LCD backlight converter (from HP elite 8300)

I have 3 LCD screen form broken "all in one" pc (HP elite 8300) And would like to recycle them as normal monitor, but for that i have to power the screen backlight. It's 4 wire coming out from the ...
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2answers
44 views

Questions about a wiring diagram of a transducer

I have an old current output wind-meter with the following diagram: Unfortunately there is no online documentation about the device so I had to take the above photo. I'm curious what could be the ...
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2answers
104 views

Figuring out ground in AC circuit

I'm currently trying to change my lamp in my bathroom so I disconnected my current lamp and forgot to write down what the cables were attached to. There are 3 cables coming out from the ceiling. <...
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1answer
543 views

3 wire load cell and HX711 weight compensation

in my project I use 3 wire load cell (like this (3wire 50kg) but mine are purchased from ebay) and HX711 for weighing. My wiring is like this (but i use Arduino mini pro 3V3): Apparently it should ...
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1answer
43 views

Motor Sizing and Wiring Diagram Help? My motor has a wiring diagram but no ID tag

Here is a link to an Imgur album of my motor and its wiring diagram I have a motor that I'd like to wire. My two questions are, how do I determine its operating parameters, and how do I use its ...
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1answer
76 views

What material are old coaxial cables made from?

I'm asking about the old long white coaxial cables that are used on tvs. I notice the white insulation jacket is harder than the soft pvc jackets that most electrical devices use. Specifically what ...
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1answer
224 views

How do I fix these broken cables/pins?

I have this Infra-red USB receptor with 2 broken wires, marked in the picture with circles. What type of connector/pin are these? Both connectors are similiar, except in size. Looks like they are ...
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1answer
29 views

what glue should i use when making 5, 12 V connectors (plugs)?

At the moment I'm making 5.5 x 2.1 mm DC connectors. The connectors are typical solder lug types like you'd find at the big online stores. I'd feel better about these if I could insulate the lugs -- ...
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0answers
43 views

Can I use a different V+ terminal if one has burned out?

I own a Anet A8 3D printer, and I have accidentally burned out I guess one of the V+ terminals and it doesn't function well. As the printer has multiple terminals for V+ can I just plug in to another ...
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7answers
6k views

Lack of Earth wire

Electricity connections where I live don't have have earth wires, only live and neutral. I don't have any problems with it but if I touch metal parts of any desktop computer, It does what coffee can ...
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0answers
101 views

Best wire gauge for an RGB video signal

I'm trying to wire a CVBS-to-RGB converter into my car's monitor that only supports Navigation Maps with an old-fashioned ...
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1answer
81 views

Using salvage power supply, RM1-3490 HP Laserjet

EDIT: What do I need to do, to hot wire the board to fully turn on? I have a salvage powersupply from a big printer/copier and have a upcoming project and I'd like to use it. Problem is I cannot ...
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3answers
912 views

Is it safe for a screw at the terminal block to have multiple wires with fork connector end connected to it?

I have a DC-DC converter (24v to 12v) that has terminal block at its input and output terminal. To understand it better, I've attached the drawing of the converter found in its datasheet. Problem: ...
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2answers
40 views

External Cage AC Induction motor

AC Induction motors use an internal squirrel cage with skewed bars for the stator... However no matter how hard I look around on the internet I cannot find an external-cage AC induction motor design, ...
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1answer
75 views

How do I wire up a 2.3-3 V LED to a 12 V car battery that can have a variable voltage depending if the engine is running or not?

I am making a wireless switch for my car tyre inflator. I have a basic hand-drawn sketch of what I intend to wire up. Basically, it will be a box with an 50 amp Anderson plug for input (right hand ...
0
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1answer
61 views

Are there any disturbances caused by wire of socket which not being used?

Let's say there external wiring that lead to AC power socket. Are there any electromagnetic field or something from the wire if the socket isn't used at the moment (nothing plugged in). What if ...
0
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1answer
217 views

Replacing a coffee maker switch with a relay - grounding issue

I'm trying to replace a coffee maker's switch with a relay. Problem is, I'm not sure how to handle the ground wires going into the switch. Looks like the wires are coming from the power supply and ...
0
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1answer
68 views

Conductivity and high speed transmission using aluminium slip rings

So I came across a Persistence of Vision globe based video where a YouTuber he makes DIY slip rings to power and control some LEDs as seen in this picture: My question is, given the high rate of ...
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2answers
113 views

Need help understanding details of thermostat wiring scheme

I bought this thermostat to control air circulation, that is using it for cooling purpose. So far I managed to make it work, but I do not fully understand the wiring scheme. I would appreciate help to ...
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1answer
74 views

How to properly label power wires

Basic and stupid question, however it bugs people and creates misunderstanding. I frequently see the following labeling of 3 wires in the cable wire 1: "+24 V" wire 2: "-24 V" wire 3: "ground" or ...
0
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1answer
62 views

Wiring 3P+N Device to 3P+N+E Connection

I have a 415V compressor with a 3-phase Commando plug in the configuration 3P+E, however my wall socket is 3P+N+E. Is it possible to change the plug on the compressor to a 3P+N+E without connecting ...
0
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1answer
52 views

Issues with hooking up a solar panel to an air pump for a mini-hydroponic School Project

I am new to Solar and but I am a High School Science teacher. My question is in regards to a small scale hydroponic project that runs off solar. I need to get the 6v 2w 350mA solar panel to power up ...
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3answers
216 views

Can the length of a wire impact SPI transmission?

I'm trying to wire a DotStar LED strip to another one. I have soldered on both ends of the added strip: VCC to VCC GND to GND CO to CI DO to DI I'm using SPI to control the LEDs. For some reason, ...
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2answers
49 views

Can a Surge Travel on a Residential House's Wiring that is higher than 6kV and 3kA?

IEEE has stated that the highest voltage and amperage that a surge can travel on home wiring is 6kV and 3kA. Anything higher, the wiring would melt. If this is so, how does a surge from direct or ...
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1answer
67 views

Nest thermostats wiring problem 3 storey house (3rd gen, E, analogue one) [closed]

My house has 3 storeys and 3 thermostats. 2nd and 3rd floor have nest e and nest thermostats respectively. The 1st floor has an old analogue one that used to work ok. After the nest upgrade I noticed ...
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3answers
286 views

What's an easy way to connect multiple pins between multiple breakout boards?

I'm building a circuit by screwing multiple breakout boards into a wooden panel and using jumper wires to connect header pins between different boards. Most of the time this works fine, but sometimes ...
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0answers
60 views

Raspberry PI Zero, pushbutton and pullup

I have a very simple schematic: GPIO12 -> pushbutton -> R(1.5 Kohm) -> ground The GPIO12 is set to IN mode and ...
10
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5answers
3k views

Designing home DC wiring

I've been thinking about this for a while. Now that we have means to generating electricity in DC, what would it take to do a DC wiring for an house to work along the traditional AC wiring. ...
2
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1answer
198 views

2S 18650 Li-ion battery pack conundrum

I recently bought a remote control toy for my son which included 2 2S battery packs, with a single SM-3P plug, and a corresponding USB charger as shown here. Initially, the car worked fine, though ...
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2answers
493 views

Wires not snapping to pins on component in Altium 19

I updated my PCB document based on my schematics and noticed a few nets were missing between components. For example, my current limiting resistor doesn't have a visible net to my LED. I went back to ...

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