tanong tungkol sa fuse/circuit breaker

[Siramiko]

paano ba malalaman ang dapat na gamiting fuse/circuit breaker sa bahay?

[freakything]

paano ba malalaman ang dapat na gamiting fuse/circuit breaker sa bahay?

types of fuses

Standard Fuse "Type W" (no time delay)
- Type "W" fuses are an older style fuse utilizing an Edison base and are all but obsolete. They are general purpose plug fuses and "fast-acting", that is they have no time-delay fuse element but will quickly interrupt the circuit once the rated amperage is exceeded.

The fuses are designed for use in general lighting and power circuits that do not contain electric motors. Electric motors draw additional current at start up and will blow these fuses if the motor is of any significant size. Because of this, time-delay fuses are now almost exclusively used.
Rating: 120 volts; up to 30 Amps

"Type SL" and "Type TL" (time delay; medium duty)
- SL and TL fuses are medium duty time delay fuses and are now the most commonly used plug fuses found in the home. The only difference between the "TL" and the "SL" fuses are the types of bases. The "TL" fuse uses an Edison base and the "SL" fuse uses a Rejection base.

These fuses work by having a plug of heat absorbing solder attached to the center of the fuse element. This allows the fuse to absorb a temporary circuit overload such as may be caused by a surge power draw when a motor starts up (e.g., garbage disposal). This ability to handle overloading starting currents of a motor without unnecessarily interrupting (blowing) is a key benefit of these types of fuses.

"Type S" and "Type T" (time delay; heavy duty)
- S and T fuses are heavy duty time delay fuses and used for circuits having critical or high motor loads or circuits having motors that cycle on and off often (e.g. a sump pump). These fuses have a longer time delay feature than the TL or SL fuses. However, just like the TL and SL fuses, the only difference between the "T" and the "S" fuses are the types of bases. The "T" fuse uses an Edison base and the "S" fuse uses a Rejection base.

These fuses work by use of a spring loaded metal fuse link attached to a solder plug. If the overloaded circuit condition continues for too long, the solder plug melts and the spring pulls the fuse link free, cutting power to the circuit. This allows the fuse to absorb a longer temporary circuit overload.

Minibreaker (converts a fuse to a circuit breaker)
- Minibreakers are retrofit circuit breaker fuses that screw into Edison base fuse sockets. These little guys are great as they convert what was a fuse into a push-button circuit breaker. These minibreakers have a little push button that pops out when the circuit is overloaded. All you need to do is push the button back in to reset the circuit breaker fuse.

These minibreakers are also designed for time delay so they do not trip unnecessarily when motors or appliances start up.

Putting in higher rated fuses than a circuit was designed to handle was a problem with older homes. Once the wrong amperage fuse is installed you really can't tell it is improper because the wire size is the determinant of circuit capacity. So what happens is that people replace the wrong size fuse with another one since they assumed the blown fuse was correct. This resulted in many circuits being dangerously unprotected.



hala..ang haba..hahaha

copy paste lang yan dude..
http://homerepair.about.com/od/electricalrepair/ss/fuse_types.htm

[Siramiko]

ang ampere ng fuse paano malalaman kung alin ang dapat gamitin ?

@freakything
salamat  ang haba nga! mamaya ko babasahin 

[freakything]

ang ampere ng fuse paano malalaman kung alin ang dapat gamitin ?

@freakything
salamat  ang haba nga! mamaya ko babasahin 

kuya yun lang ba tanung mu?
akala ko pati type ng fuse gusto mu malaman!

yes po ang sagot.. ggrrrr..
nagresearch pa ako..

[krayziebone]

sa pagkaka-alam ko lang, pag pipili tayo ng fuse, dapat i-consider natin yung type ng load at yung current carrying capacity ng circuit. dapat hindi lalagpas sa kaya ng circuit para mas reliable yung overload and short-circuit protection.

[freakything]

sa pagkaka-alam ko lang, pag pipili tayo ng fuse, dapat i-consider natin yung type ng load at yung current carrying capacity ng circuit. dapat hindi lalagpas sa kaya ng circuit para mas reliable yung overload and short-circuit protection.

ayan..
naexplain na niya yung ibig kong sabihin..
yung mga types ng fuse na pinost ko, andun nakalagay kung anung dapat gamitin kung icoconsider mu ang
type ng load. ^^

[express]

kung sensitive yung load mo--maraming factors kailangan i-consider (temp, type of load, etc.).

Pero normally, 1.2-1.3X lang ng operating current ng load yan.

[alyas]

paano ba malalaman ang dapat na gamiting fuse/circuit breaker sa bahay?

Check mo sa Building code of the Philippines.  Standardized na ang mga current ratings na dapat gamitin.  Like for example ....yung main breaker connecting to the outside ac line is standardized at 60A ata.  Kapag aircon outlet....nasa 30A ata and normal outlets 15A.  Di ko na matandaan .... better ask from en electrical engineer or browse mo sa book sa national bookstore.

[pathfinder4wd]

paano ba malalaman ang dapat na gamiting fuse/circuit breaker sa bahay?

depende po yan sa load requirement ng isang bahay.
usually, 30Amp main,20 amp power, 15amp lighting. optional aircon 10-15amp

[Siramiko]

kuya yun lang ba tanung mu?
akala ko pati type ng fuse gusto mu malaman!

yes po ang sagot.. ggrrrr..
nagresearch pa ako..

lahat kong gustong malaman tungkol sa fuse, aba!  napakalaking bagay niyan para sa akin at para din sa may interest sa fuse  ,salamat sa pag research mo!   

[Siramiko]

salamat sa mga nagrereply 

[freakything]

lahat kong gustong malaman tungkol sa fuse, aba!  napakalaking bagay niyan para sa akin at para din sa may interest sa fuse  ,salamat sa pag research mo!   

ehehe..welcome po..
dag dag post count! ^^

[kinyo]

uso pa ba ang fuse para sa bahay? hindi ba circuit breaker na ang ginagamit ngayon?

Yung Volume 1 ng Philippine Electrical Code, meron dun examples ng calculations kung anong size ng circuit breaker gagamitin, including the mains breaker   

[ahlburuto]

mas maganda combine yang dalawa. iba kasi ang acting nga fuse sa breaker eh. ang advantage lang ng breaker sa fuse eh pag nagkaroon ng fault eh reset lang gawin mo. mantalang sa fuse eh replacement kelangan mo.

[robbietan]

sa bagong PEC, kelangan circuit breaker na ang ikakabit sa mga bahay.

ewan lang kung kaya nilang ipatupad sa mga 'depressed area' ang standard nila na iyan....

[kuryenteboi]

pnu kng mhrp lng ung bhay, 1 lng kya nla mbili n circuit breaker, ex. 30amp, pde b kng dun n kmuha ng supply s outlet at lighting?(substandard) anu posible mngyre pg gnyan? kng mbba lng ang ampere ng appliances mgttrip b ang breaker with 30amp? gs2 q lng poh maliwanagan...hihihi

[ahlburuto]

siempre kung solo lang ang gagamitin mong cb or fuse para sa supply ng bahay eh pag nagkaroon ng fault eh totally wala kang power sa lahat. pag meron kang branches eh dun lang sa isang branch na nagkaroon ng fault ang walang power. mas safe kung babatay ka sa PEC para sa tamang rating ng mga fuses at cb's.

br

[Inactive]

may prescribed size ng mga breaker ang pwedeng gamitin based on PEC. at sabi dun kelngan it will not exceed 80% of the ampere capacity of the circuit breaker.

[piona]

paano ba malalaman ang dapat na gamiting fuse/circuit breaker sa bahay?

Ang fuse po ay depende sa wire na ginamit, makikita mo yon sa fuse box, yong wire na papasok sa load o bahay...yong ampacity ng wire, don ka babasi kung anong fuse rating ang gagamitin po ninyo...
 

[marleytrical]

depende po yan sa computation of load ng isang bhay ang isang lightning ckt is 120watt tapos ang outlet is 180-1000watts depende sa load na gagamitn mo. add mo lang lahat ng load mo  then do the OHM's law. lalabas n dun ung ampere rate ng breaker.