pojistka

gatilo gatilo na centrum.cz
Středa Únor 8 16:17:56 CET 2017


 8.2.2017, 16:16:38

Ale taktez tam mate podminku - Woodova kovu.
Je i tato splnena?

S pozdravem Pavel
  mailto:gatilo + zavinac + centrum.cz

--
Jan Waclawek napsal:

> Mno, to nepochybne, ale tu je to splnene: bolo to vopchate v battery packu.

> Pan kolega Filip to staval do polohy vyhradneho alebo; no ale ja tvrdim ze
> to je a.

> wek



>> 8.2.2017, 15:52:01
>>
>>Pojistka, chranici proti nadmerne teplote, musi byt, z principu
>>cinnosti, uvnitr chraneneho prostoru (nebo tam musi mit alespon
>>nejakou snimaci cast). U nadproudove pojistky, to neni, dle pana
>>Kirchhoffa, nezbytne. ;-)
>>
>>S pozdravem Pavel
>>  mailto:gatilo + zavinac + centrum.cz
>>
>>--
>>Jan Waclawek napsal:
>>
>>> Pred oboma.
>>
>>> Ak drot v obycajnej poistke spravi z nizkotavneho kovu, tiez bude chranit
>>> pred oboma.
>>
>>> Tu je vyrobca:
>>
>>> http://www.nec-schott.co.jp/english/cutoff/sh_type.html
>>
>>> (dobre chaoticke stranky mimochodom)
>>> pod Technical Details:
>>
>>> When the ambient temperature rises to the operating temperature of the D6
>>> series, the fuse element melts and forms a drop around the end of each
>>> lead as a result of surface tension and the special flux coating. This
>>> cuts off the electrical circuit. It also contains a second protection
>>> function: when the heater resistance activates in response to an external
>>> signal causing the fuse element to melt, it cuts off the circuit
>>> immediately.
>>
>>> (aha takze to nie je PTC, t.j. nie je resettable)
>>
>>> Tu je nieco podobne ale resettable verzia. Ten popis je tiez ako od
>>> tatarov, nie je z neho uplne jasne, ze je aj teplota aj prud, ale dokladne
>>> citanie prezradi, ze je to tak.
>>> http://www.littelfuse.com/products/battery-mini-breakers/metal-hybrid-protection.aspx
>>
>>> wek
>>
>>
>>
>>> ----- Original Message ---------------
>>>>Dobr? den,
>>>>
>>>>Proudov? pojistka chr?n? p?ed nadproudem, tepeln? p?ed vy??? teplotou.
>>>>
>>>>Tato chr?n? p?ed ??m?
>>>>
>>>>S pozdravem,
>>>>
>>>>-- 
>>>>  Ale? Filip
>>>>  Kutn? Hora
>>>>  http://xanadu.khnet.info
>>>>
>>>>
>>>>
>>>>Dne 8.2.2017 v 14:05 Jan Waclawek napsal(a):
>>>>> No a normalna poistka je aka? Prudova ci teplotna? Rozpaja sa presa
>>>>> nasledkom zvysenej teploty, ktora je nasledkom prechadzajuceho prudu...
>>>>>
>>>>> Je to nieco na sposob PTC, ktory ma v "pokojovom" stave primaly odpor na to
>>>>> aby sa zohrial, tak je zohrievany prilozenym odporom.
>>>>>
>>>>> wek
>>>>>
>>>>>
>>>>> ----- Original Message ---------------
>>>>>
>>>>>> Dobr? den,
>>>>>>
>>>>>> Rozebral jsem akupack z notebooku, a v n?m na?el tuto pojistku"
>>>>>> http://www.atcsemitec.co.uk/pdfdocs/d6x-thermal-fuses.pdf
>>>>>>
>>>>>> N?jak nech?pu princip. Je to proudov?, tepeln?, nebo jak? pojistka? Na
>>>>>> co je tam ten odpor?
>>>>>>
>>>>>> S pozdravem,
>>>>>>
>>>>>> -- 
>>>>>>   Ale? Filip
>>>>>>   Kutn? Hora
>>>>>>   http://xanadu.khnet.info
>>
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