Electrical Engineering - Cooper screw's made

Author

Cooper screw's made

magic

2006-06-25, 9:25 am

Dear all,

Pls find me some practical answer to the above matters;

1. Why in various connections shall be used cooper screw instead of
other materials.

2. Why a lot of screws (any types) is use for tighting terminals (HV or
LV) cannot last longer and need to retighten back after several time.
It is due to hermonics effect?

Tks

magic

Rheilly Phoull

2006-06-29, 9:26 am

magic wrote:
> Dear all,
>
> Pls find me some practical answer to the above matters;
>
> 1. Why in various connections shall be used cooper screw instead of
> other materials.
>
> 2. Why a lot of screws (any types) is use for tighting terminals (HV
> or LV) cannot last longer and need to retighten back after several
> time. It is due to hermonics effect?
>
> Tks
>
> magic

Copper screws have high conductivity.

More likely differing thermal expansion rate of materials.

--

Cheers ......... Rheilly P

Where theres a will, I want to be in it.

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