adiabatic on earth bonding

[rfears]

Off topic, sorry, but curiosity requires

The terms "adiabatic" / "adiabatic equation" are used quite frequently, especially w.r.t. earth bond csa calculations.

Oxford English Dictionary defines adiabatic as "relating to or denoting a process or condition in which heat does not enter of leave the system concerned", Wiki states "In thermodynamics, an adiabatic process is a conversion that occurs without input or release of heat within a system."

So how has this term come to be used w.r.t. earth bonding?

Like I say, just curiosity...

 

[telectrix]

it's basically to do with the cable/s withstanding a certain level of current without overheating to the detriment of the cable. it's not exactly a correct use of the word adiabatic, but ......

 

[rfears]

it's basically to do with the cable/s withstanding a certain level of current without overheating to the detriment of the cable. it's not exactly a correct use of the word adiabatic, but ......

Thanks Tel. Do you happen to know if the word is mentioned in BGB, or is just (mis)usage within the industry?

 

[telectrix]

look at 543.1.3 the bs7671 refers to the equation as an adiabatic equation in that reg. however, it's not exactly accurate, as the term adiabatic means " WITHOUT LOSS OR GAIN OF HEAT"

 

[rfears]

look at 543.1.3 the bs7671 refers to the equation as an adiabatic equation in that reg. however, it's not exactly accurate, as the term adiabatic means " WITHOUT LOSS OR GAIN OF HEAT"

Aren't language and physics wonderfully flexible things? Lead to things like "(2) As may be necessary to prevent danger, all systems shall be maintained so as to prevent, sofar as is reasonably practicable, such danger. ". You've probably seen that sentence before somewhere...:28:

Thanks for the information - Rick.

 

[Knobhead]

Language is most flexible, this is one I think sums it up:

The deserters were forced to desert their dessert in the desert.

Try explaining that to “Johnny foreigner”.

 

[Geoffsd]

A mere trifle.