APC Back-UPS BE850G2 issue question

[GOOFUS]

Hello all

I am new here and had some qeustion about
APC Back-UPS BE850G2 - UPS230 Volt wisselstroom V - 520 Watt - 850 VA.

So in the past i had an older ups but i put it somwhere else. And was fine even when removing power plug there where no electrical sparks

So when put the new ups and connected everything game pc and nas.
I found out that i still needed to cablemanage the cable of the ups. When i removed the plug sparks came out between the plug and wall outlet. and the power went off in house.

Is this normal or is it because i left the ups on and removed the power plug that caused a spark

I returned the power on in house and turned first the ups off. Then returned everything cables etc
It seems now working fine. Whenever i romove power plug of the ups i first turn it off i did do that and no sparks i did not try again with ups on safety concern.

 

[Mussels]

Removing any cable can cause sparks and shorts like that - you should never remove a live power cable that way

Even with a UPS, if you're leaving it active you need to turn off the wall plug before detaching it's cable

 

[GOOFUS]

Thank you ill turn of the ups before removing ups plug power leson learned

 

[Bill_Bright]

Not sure I would call it "normal" but it is not uncommon.

The problem goes back to the Law of Physics for electricity. Voltage always wants to take the path of least resistance to ground. If the "potential" is high enough, the voltage will jump (arc or spark) across a gap to get there.

So the problem, in this case, was you! You need to be more positive (and quick) in your action. Before connecting any cable, visually inspect the plug and the connector and make sure you have the plug oriented correctly (so you don't attempt to connect it upside down, for example). Then, with total confidence, quickly line up then insert the plug. There is no guarantee there will be no arcs, but you minimize the chance.

Of course, when possible turn off all power BEFORE attaching or detaching cables. This is not always possible, especially when batteries are involved. That said, I have never seen an UPS that didn't have a master power switch!

When detaching a cable, the same positive confidence must be applied. Do NOT yank the cable out - but do get a firm grip on the connector (not the cable itself) and quickly pull it straight out. If not done quickly, and enough high potential voltage is present you can get arcs when disconnecting connectors too.

Note typically this is harmless - though with mains wall plugs, if your fingers are too close to the prongs, you might get a nice little shock and burn.

The bigger concern is the possibility of the arc leaving pits and carbon deposits on the connector contacts. After repeated arcs, this can affect the continuity through the connector. This is a greater problem with higher voltage connections, but still something to be aware of.

 

[GOOFUS]

Thank you for the aded info this issue was not with older ups.
As you said i was in a hurry i had it pulled not firm enough with newer model.

In future i will turn it off and wait few second to befor pulling the plug

 

[ThrashZone]

Hi,
I wouldn't worry about it
If you really want to pick hairs your static electricity is causing it

 

[Shrek]

When i removed the plug sparks came out between the plug and wall outlet. and the power went off in house.

Sparks are normal, tripping the power is not.

 

[GOOFUS]

I left the power on ups as in was charging also the nas and pc where connected nas was off pc was off the psu was not switched off off i think maybe thats why it happend

 

[ThrashZone]

Sparks are normal, tripping the power is not.

Hi,
Sensitive gfi breaker maybe not really a bad thing but is unusual to pop a circuit breaker
Newer houses have dual gfi breaker in the box "additional neutral" and of course gfi button plugs in every room/ circuit.