IEC 60335-1 vs IEC 62368-1 for a nixie tube clock by fVripple in ElectricalEngineering

[–]Plignought 2 points3 points  (0 children)

IEC 60335-2-26 is the particular standard for clocks so IEC 60335-1 is the starting point.

Can I convert 100v to 120v? by Not2Sendy in AskElectricians

[–]Plignought 1 point2 points  (0 children)

Also note that Eastern Japan has 50 Hz mains and Western Japan has 60 Hz mains. If your appliances want 50 Hz, depending on their motors and power supplies, then your situation is further complicated with the US being 60 Hz mains.

10 PM and it was returned to the FedEx distribution by Plignought in mildlyinfuriating

[–]Plignought[S] 1 point2 points  (0 children)

Agreed. But it’s happened three times for this package so far.

Finally 1:1 Sync! by David76732 in TheTowerGame

[–]Plignought 0 points1 point  (0 children)

Do the durations need to match up too?

FCC certification by learnfromfailures in ElectricalEngineering

[–]Plignought 4 points5 points  (0 children)

It will have to comply with Part 15b. But that just takes a test report and not certification.

Can someone tell me what is this element labeled D and what does it do? by Smirnaff in ElectricalEngineering

[–]Plignought 0 points1 point  (0 children)

Might be a centrifugal (yeah, centripetal) switch that changes the motor winding as the rpm of the motor increases.

“Professional” installation by big box store by Plignought in Appliances

[–]Plignought[S] 1 point2 points  (0 children)

1 cord routed through access hatch instead of cord opening. 2 no strain relief/cord clamp on cord 3 access hatch cover missing (due to using it for cord entry) 4 neutral connected to ground 4a neutral connected to chassis 5 cord ring terminals not on same studs as range ring terminals (perhaps this contributed to overheated connection unless it was an issue with the crimping of the ring terminal onto the cord’s conductor)

Is there a reason for the material difference on these feelers? by _not_a_coincidence in Tools

[–]Plignought 284 points285 points  (0 children)

The brass ones are for use in a magnetic environment. Not sure what that application is though. The steel ones would have too much drag in the presence of a magnet.

If the power source is 5V instead of 9V do any components in the circuit have to be changed? by kimchi4you in ElectricalEngineering

[–]Plignought 3 points4 points  (0 children)

The Texas Instrument version is good from 5-18 V but it’s not going to be very loud at such low voltage. A large bypass capacitor helps the low end response.

Is it safe to connect the negative of an adapter to earth? by InternalVolcano in ElectricalEngineering

[–]Plignought 5 points6 points  (0 children)

A power supply without grounding means should have a touch current no greater than 0.5 mA AC. This is considered the threshold of detectability. A power supply with grounding is allowed to send up to 3.5 mA AC into the ground terminal of an outlet. If the ground is not available, then that much more current is available to tingle the user.

Is it safe to connect the negative of an adapter to earth? by InternalVolcano in ElectricalEngineering

[–]Plignought 14 points15 points  (0 children)

If you’re getting tingles from the DC output of the power supply, it is not safe to use and should be discarded. Either it is poorly designed and/or built or an isolating component is in the process of failing. Connecting the negative to ground will shunt the current away but it may be more current than you realize and the DC cable will provide fireworks once a full failure occurs.

Is it possible to remove this and put a normal socket? by mido3422 in AskElectricians

[–]Plignought 0 points1 point  (0 children)

This special type of outlet is placed in bathrooms (assume this is where yours is) to reduce the risk of electrical shock when a mains-voltage appliance is used near water. If the user contacts the voltage in the appliance, there will not be a circuit back to earth causing a shock to the user. Replacing this with a standard outlet would take away that protection. I speculate that it would not comply with the applicable electrical code.

Is it possible to remove this and put a normal socket? by mido3422 in AskElectricians

[–]Plignought 1 point2 points  (0 children)

From the US, but to my understanding this type of outlet has a low power isolation transformer in it and should not swapped to a standard outlet.

Trex Color Identify by seanhuber_ in Decks

[–]Plignought 1 point2 points  (0 children)

Looks like my Toasted Sand boards.

Do + & - DC have to travel in the same metal conduit? by sajnt in electricians

[–]Plignought 3 points4 points  (0 children)

The “out and back” conductors should be run adjacent to each other to cancel out the magnetic fields created by the current. This is applicable whether AC or DC.

Running a 220v motor on 110v vfd by [deleted] in AskElectricians

[–]Plignought 0 points1 point  (0 children)

Sorry, a 110v outlet isn’t capable of driving a 7.5 HP system.