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Questions tagged [power-supply]

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3 answers
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PDU power input [closed]

I am trying to figure out if a PDU AP8853 that is build for LAM, EMEA, GCN, APJ can be installed in US and I am not sure if possible or not without any modifications to it. It comes with IEC-309 32A ...
cadobe's user avatar
  • 117
0 votes
1 answer
74 views

Will my computer trip a circuit breaker in Japan with another appliance load?

I understand that Japan uses 100V and the maximum power available is around 1400W. Currently, my computer runs on a 1300W PSU. When I move over there, I'll need to downgrade, so I'm wondering about ...
Jaeger GR Stratton's user avatar
-1 votes
1 answer
43 views

How to power multiple LEDs and motion sensors on chair rail molding all throught the house

I'm trying to connect multiple smart LED strip lights and motion sensors that will be installed inside the chair rail molding all throughtout the house. The LEDs will need a timer and remote control, ...
Paulina's user avatar
0 votes
1 answer
101 views

Can RPM Sensor cause short circuit? Craftsman 1/2 HP Garage Door Opener Model 139 Relay (Power Board) trips as soon I connect the RPM sensor

I'm facing an issue with my Craftsman 1/2 HP Garage Door Opener Model 139. I found it dead one morning, no power, no led light was lit in the head unit, and wall controller light was flickering. On ...
Amith Kumar's user avatar
0 votes
1 answer
69 views

Surge Protector with travel adapter for a different country [closed]

I am using the following Schuko (Germany) to India adapter (Amazon.de) I am using this surge protector with Schuko plug (Germany) (APC Surge Protector - PM8-GR - Power strip with surge protection: ...
Porcupine's user avatar
  • 103
0 votes
0 answers
121 views

Can I use power supply intended for LED to power CCTV cameras

I have 8 WiFi CCTV and for all, power lines converge at the same spot in the house. Instead of using 8 adapters (12v-12w) that came with, can I hook them to 12v-120w ps unit which I originally bought ...
Munez NS's user avatar
  • 101
7 votes
2 answers
891 views

Is my replacement light switch wiring correct?

I have a single pole Decora light switch in my upstairs hallway that controls our attic light. I replaced the old switch (a single pole toggle, we are new owners of the home), and want some ...
The Amateur Homeowner 's user avatar
1 vote
2 answers
487 views

Can I use a universal power adapter for this old Ikea lamp?

I bought this old Ikea lamp from a thrift store the other day, but it is missing its original power adapter. It's got this plug that looks like an old RCA cable. I saw on reddit that the original ...
user173979's user avatar
0 votes
2 answers
293 views

GFCI Breaker trips when powering on two pcs at the same time but not when staggered

I have two pcs. One pc connects to TV, and stereo. The other to three monitors (may be worth noting it has a 3090, and with the new world gpu bug that drew too much spike power would trip the breaker ...
Bbju's user avatar
  • 1
0 votes
1 answer
49 views

How do I deenergize a cctv power supply? (altronix Sav4d)

How do I deenergize a cctv power supply. I have an altronix Sav4d PSU and the manual says I need to deenergize the power supply before working on it but doesn’t contain any instructions. How can I ...
Zak's user avatar
  • 1
2 votes
1 answer
176 views

Why live to ground voltage is only 0V (in a 220V AC power outlet & there is also electric shock on the panel)? [closed]

my name is Kelvin. I'm a trainee hydraulic engineer in Indonesia. I apologize if this question has been answered before / if this question is too basic. So we have a problem with electric shock coming ...
Kelvin Galiny's user avatar
4 votes
3 answers
334 views

Connecting Barns/Houses To mains power

I'm in the process of converting three barns into houses. Two of the barns are located 50 meters away from the main power pole. I'm considering two options for getting electricity to the barns. Option ...
BBC Basic's user avatar
0 votes
0 answers
34 views

What to consider when choosing a location for a LED strip power supply?

I'm renovating a bit again and in one place I want to provide lighting via a LED strip mounted at the ceiling corner. That will be 3m of LED strips, and I'd like the place to be well lit, so I'm ...
Vilx-'s user avatar
  • 938
0 votes
2 answers
68 views

Powering up Video Intercom and magnetic lock with single POE cable [closed]

I have the following setup, Video Intercom powered by POE. I need to power my magnetic lock with 12V. I have a "solution" but don't really want to use it which is Split the cable since POE ...
Alexandre Alves's user avatar
0 votes
3 answers
1k views

Can a Modified Sine Wave input damage an OLED TV?

I live in an area where power cuts are common. In order to protect my TV from the sudden power loss from a power cut, I am planning to buy a uninterruptible power supply (UPS). Most of the cost ...
AB2008's user avatar
  • 1
2 votes
1 answer
150 views

ALL but one CBs were open and the MB was closed. The open CB's ALL tripped at the same time How is that possible?

Last night I woke up about 3AM. I noticed my clock wasn't on. I thought maybe there was a community power outage. I got up to investigate. I then observed my outside lights to be off and other lights ...
David's user avatar
  • 21
0 votes
0 answers
183 views

Wiring a Lorenzetti shower heater

the shower unit reads: 220v-5500 30A 4mm2/10AWG . The present wire installation is 30A breaker with #10 wire for about 30 feet, connected to #12 wire for another 6’ to the shower head. Can I use this ...
Susan Fletcher's user avatar
5 votes
2 answers
1k views

110.15 High-Leg Marking

In the 2020 Edition of the National Electric Code, in Section 110.15, titled High-Leg Marking, it states, ...only the conductor or busbar having the higher phase voltage to ground shall be durably ...
CoastCity Lapse 00crashtest's user avatar
-1 votes
1 answer
57 views

is it okay that some DC Adapter(connector) are not fully inside the device [closed]

I have multiple monitors that their dc adapter (connectors) are not fully inside the device. for example my monitor has a 180 ac to dc power. the final part when connecting the transformer to laptop(...
fatFeather's user avatar
0 votes
0 answers
31 views

Replacing main electircal to house and fixing an old mess

I am changing the main electrical lead to going from roof to buried. The pole with the meter has a main panel with 3 breakers (100a to house, 40a to pump house, 40a to barn). I wish to upgrade the ...
LazyDD's user avatar
  • 1
13 votes
1 answer
3k views

Where can I get a cover for a main supply?

My house (I live in the UK) failed an electrical safety inspection because of a missing main supply cover. I have tried using google to find one to buy but can't find anything at all. Does anyone ...
lapsel's user avatar
  • 145
2 votes
3 answers
704 views

How can a faulty electric cord damage a power tool?

My almost-new 13-Amp electric lawnmower stopped working. I had turned it off after using it for a while to talk to someone, and after several minutes, attempted to turn it on again. To my surprise, it ...
sondra.kinsey's user avatar
0 votes
2 answers
4k views

How can I securely power a USB camera from an outdoor outlet?

I would like to power an outdoor USB camera from an outdoor outlet. We have a vacation rental so I don't want to plug anything in, I want it to be permanent. I have an outlet about 6 feet from the ...
brentwpeterson's user avatar
-1 votes
3 answers
827 views

Can I use a lower voltage power supply to power a router? [closed]

Devices in question: Power supply: 5V 2A USB charger with 2 ports Router: 10V 1A Modem: 10V 0.5A I'm trying to decrease the volume of cables and I'm pondering about removing my router and modem's ...
andreyrk's user avatar
0 votes
2 answers
564 views

Can I wire a 220v 15amp outlet in the US?

In Brazil I have visited a number of cities where every house is wired with 220v. This is a FULL 220v between the Live and the Neutral, plus the Ground wire. Very different from the 220 in the US ...
TeX Apprentice's user avatar
1 vote
1 answer
3k views

What can cause all LED bulbs / fixtures to rapidly flicker at the same rate?

Since last week, every LED bulb and fixture in my household is flickering at a similar rate. Incandescent and CFL are not affected. Here's what I've had done to try and diagnose the issue: Fuse panel ...
automaton's user avatar
  • 119
6 votes
3 answers
3k views

Can a power transformer cause building vibration

For six weeks something that runs when it's cold outside has caused shaking of the floors. There is a transformer for the powerlines at the back of the property. Neighbors to right and left don't ...
Mchris's user avatar
  • 61
2 votes
0 answers
111 views

Why do we lose power when it is slightly cool in a hot region?

I spend part of the winter in a condo in Quintana Roo, Mexico, which is a subtropical area, with normal daytime high temperatures in the upper twenties to low thirties celsius, and nighttime ...
user avatar
0 votes
4 answers
100 views

Help for electric dryer power issues

I have a 30 Amp circuit breaker for my dryer. The receptacle (outlet) is a 50 Amp outlet (it was in the house when I got it). I have a 50 Amp cord connected to a 30 Amp dryer. My only concern is if ...
Nicky k's user avatar
0 votes
2 answers
3k views

Connecting 1 phase power generator to 3-phase home power circuit

I am looking to hook up my power generator to my house in case city power goes out. I have 3 phase power supply from the city and 1 phase generator. I have connected my generator using rotary switch (...
ggv's user avatar
  • 1
-2 votes
2 answers
381 views

Can i use 1/0 THHN/THWN-2 Building Wire [closed]

Would this be ok to use from the house to a outdoor garage for the main power line? House has 200 fuse box. Shop will have the same but just your standard plus stuff being used with lights etc
user avatar
3 votes
8 answers
4k views

How to detect power cut remotely? [closed]

I need to know if there is a power cut in a building. I have to detect this remotely, because I am usually not present at the building. I need to detect the power outage in less than 24 hours to save ...
B Faley's user avatar
  • 171
2 votes
1 answer
419 views

Why does my Uninterruptible Power Supply produce lower watts on backup battery than line power for my pellet stove?

SOLVED Problem: When my UPS does the switch-over from line power loss, the pellet stove runs but you can hear the stove motors slow down, and the wattage meter on the UPS drops from ~150w nominal to ~...
Joshua Jensen's user avatar
0 votes
1 answer
281 views

Reverse surge protection

This is somewhat related to the question I found here: Will a spike protector work in reverse? I have a trusty old 3D printer running on the same power strip as my two computers including a screen. ...
Markus Appel's user avatar
0 votes
2 answers
1k views

Does Electrical Outlet always run current even without anything plugged in? [closed]

In a situation where there is no device plugged in a normal house electrical outlet, does it still run an electric current, if so then how large? I would assume there is no electric current in this ...
Lop's user avatar
  • 1
0 votes
3 answers
153 views

Will an electric shower fry my PC?

In Brazil, showers are all electric. Mine pulls up to 5000W/50A at 120V (actually, 120Vx50A=6000w, but that's how they rated it). We installed it last week and I told the electrician to make it's ...
Ezequiel Barbosa's user avatar
1 vote
0 answers
149 views

Partial power out when AC is on

Anytime our AC is on we lose power in a few rooms mostly the kitchen. It can be on a few days before it goes out. I’ve had 2 electricians come they both said electric panel looks great , we did ...
Jackson221's user avatar
0 votes
2 answers
250 views

LED lighting fixture driver busted - what can I replace it with?

A LED lighting fixture in my apartment (in Israel/Palestine) started flickering for a while before coming on, then went bust. I suspect it's the driver/power supply rather than the LEDs themselves, ...
einpoklum's user avatar
  • 2,777
-1 votes
2 answers
291 views

how wire a 24 vac normally closed float switch to a relay to turn power on and off to a 120 vac clothes washer

Hi: In over my head just by being here so thanks in advance for your patience and help. My goal is use a 24 vac float switch (which sets in an overflow pan) to interrupt a 120 vac circuit that runs a ...
user avatar
-1 votes
3 answers
81 views

Tekmar 532 gives error code about voltage too low. Hooked up to 24v powersupply, fluke multi-meter reads 24.18v across wire

I have a tekmar 532 which I have hooked up to a Signcomplex 24V 2A 48W Power Supply Adapter Transformers 24VDC LED Driver Switching Power Supply for LED Strip Light AC/DC Power Adaptor, UL Listed. ...
Fresh Codemonger's user avatar
0 votes
2 answers
397 views

I have seven 24v 2amp thermostats. Do I just need a single 24v 2amp power supply to power them?

I have seven 24v 2amp thermostats. The thermostat wires all feed to the same place. Do I just need a single 24v 2amp power supply to power them? The thermostats are Tekmar 532. They will connect to a ...
Fresh Codemonger's user avatar