buzz bar

[doblo7]

hi,
anyone tell me what a buzz bar is? what it does? where its used? etc etc

 

[andy]

itz a bar what carries power to different isolators etc instead of wires. used in CU for connecting all the breakers and in busbar chambers

 

[ryanj]

The thick copper bar along the bottom of that image is a busbar.

It is simply a neat way of taking the power from the isolator to the seperate MCB's and RCBO's.

 

[ban-all-sheds]

If your busbar buzzes, something is badly wrong...

 

[plugwash]

i think the nickname came from busbars in really high power systems which did tend to buzz

i would imagine especially so if they were outdoors and it was raining

 

[pipme]

Once, in a factory, we had an electrolyte pipe burst under considerable pressure ... having killed the pumps, we watched the leak rise in a graceful arc to engulf the overhead buss-bars .... lightening like flashes .. molten metal flying ... scary !!
Oldbury power station had to change down a coupla gears !!

P

 

[Lectrician]

We work on a site with large busbars, switch fuses, and mccb panel board busbars in a large room. This room is also full of compressors that are as noisy as........

When we kill the compressors for maintenance, it is scary how much 'buzz' you get - main incomer feeding these busbars is rated at 1200amp, currently fused to 800amp

 

[andemz]

Wow Lectrician that is going some. Yes but no but.... be very careful!!!

 

[Paul_C]

I have never seen this definition listed, but I have always assumed that the term is derived from omnibus, meaning "encompassing or including all." i.e. a bar which is a common point between many or all circuits.

 

[pipme]

http://www.google.co.uk/search?q=ca...g/foldoc/foldoc.cgi?bus+the+term+busbar&hl=en

... The electrical engineering term "bus bar" - a substantial, rigid power supply conductor to which several connections are made. This was once written "'bus bar" as it was a contraction of "omnibus bar" - a connection bar "for all", by analogy with the passenger omnibus - a conveyance "for all"....

So there we go ... http://www.usefulcontent.org/ ... very useful !!