Reverse polarity

[Dambo]

Hi. Just wondering what problems reverse polarity can cause? And if current still flows normally how do you then check for it?

 

[nicks electrix]

It can cause electric shock, burns and even death. When the switch is in the off position the is still 230 volts at the load. Only the live wire should be broken not the neutral. This can be checked that the live incoming supply goes through the main fuse into the (L) terminal on the double pole isolator and that all live wire pass through the circuit breakers. Then all live wires should be connected to (L) on all lights, sockets etc.

 

[Evans Electric]

And check it across live to earth .

 

[Dambo]

Thanks Nick. Is there a way of testing to see if there is reverse polarity on any circuits without checking the wiring at the consumer unit, light, socket etc...?

 

[Apache]

Thanks Nick. Is there a way of testing to see if there is reverse polarity on any circuits without checking the wiring at the consumer unit, light, socket etc...?

If you have a mains electric clock it will run backwards. The fridge will get warm and the oven cold. Try it

 

[tom1]

http://www.screwfix.com/search.do;jsessionid=MFGAKP3OC51VWCSTHZOSFFY?_dyncharset=UTF-8&fh_search=socket+tester&searchbutton.x=6&searchbutton.y=14

 

[jdmjrmdam]

If you have a mains electric clock it will run backwards. The fridge will get warm and the oven cold. Try it

Does the hair dryer suck and the vacuum cleaner blow? ROTFWL

 

[Apache]

Does the hair dryer suck and the vacuum cleaner blow? ROTFWL

only when your gf is out

 

[SPECIAL LOCATION]

If you have a mains electric clock it will run backwards. The fridge will get warm and the oven cold. Try it

And the television starts transmitting images of you sitting in your lounge out through the aerial.

The light bulbs absorb light and output darkness.

Mobile phone chargers draw all the power out of your battery!

Blushing ]

 

[Andy™]

Dejavu anyone?

 

[Apache]

[quote name='Andy

 

[Andy™]

Just be nice or GF will have to tell us off again.To OP - reverse polarity is bad and dangerous. If you isolate neutral by mistake then the circuit remains live. You could die. This really isn't a laughing matter.

:|

i didnt do anything wrong last time, it was you!

 

[revjames]

if its a tncs system then everything with an earth will be live!

I used to work for the electricity board and have done overhead service renewals. There was a bloke who used to just whack the fuse in and hope for the best without checking polarity. Once he accidentally connected 2 phases instead of phase/neutral and put 415V across the whole house and blew just about everything - microwave, TV, microwave, bulbs and even the immersion heater!

 

[Andy™]

thats wrong polatiry at the incoming cable to service head. anything after that, and the earth wont be live. even if you got wrong polarity at the meter

 

[The Godfather]

The Godfather

B-)

 

[Apache]

The GodfatherB-)

smilie number 3

 

[revjames]

[quote name='Andy