Grounding
Electricity naturally flows to the earth, or to ground, through anything that will conduct electrical current. Pwedeng dumaan ang kuryente sa katawan ng tao na minsan nagdudulot ng fatal results, trying to make a path to the ground.
Kung ang appliance or tool ay faulty, or shorted, for example, pipilitin ng kuryente na magkaroon ng path to ground gaya ng nangyayari kapg KUMIKIDLAT. Kaya, dapat grounded ang mga appliances natin at iba pang electrical loads.
Well, bakit kailangan natin ng ground wire?? Kung tutuusin, pwede gumana ang appliance kahit wala nito because it is not a part of the conducting path which supplies electricity to the appliance.
Kung tutuusin, if the ground wire is is broken or removed, you will normally not be able to tell the difference. But if high voltage has gotten in contact with the case, there may be a shock hazard. In the absence of the ground wire, shock hazard conditions will often not cause the breaker to trip unless the circuit has a ground fault interrupter in it.
Part of the role of the ground wire is to force the breaker to trip by supplying a path to ground if a "hot" wire comes in contact with the metal case of the appliance.
Sa upper part ng diagram, makikita mo ang 3-wire system. Ang ground wire ay coded with "GREEN COLOR". In the event na magkaroon ng electrical fault, at TUMAAS MASYADO ang boltahe, kailangan magtrip agad ng circuit breaker para maputol ang linya.
Kung GROUNDED ang electrical system natin, voltage), ang ground wire ngayon ang dadaaanan ng mataas na current (resulta ng mataas na voltahe), making the circuit breaker TRIP OFF.
Three-Prong PlugsSiguro mapapansin mong karamihan sa mga outlets sa bahay ay may tatlong butas. Marami kasi ngayon ang meron nang three-prong plugs.
Dalawang prong para sa daanan ng current at ang pangatlong prong para sa grounding. Karaniwan makikita sa stoves natin, sa ref at sa sa computer.
Wag na kayong magtaka nun kasi ibig lang sabihin, safe tayo.
GFCI. "ground fault circuit interrupter"
These are usually installed in wall-mounted receptacles in areas where electricity and water are most likely to come in contact, such as bathrooms, laundry rooms, kitchens, and outdoors. Mas delikado kasi tayo sa mga wet areas
kung saan pwede makadaloy ang kuryente.
Meron tong mga button pasa sa TEST at RESET. GFCIs monitor electric current and can switch a circuit off before injury occurs. Alam nyo din ba, na karamihan ngayon sa mga electric hair dryers are equipped with GFCI on their plugs?? Well, dapat lang din di ba?
Kung ang appliance or tool ay faulty, or shorted, for example, pipilitin ng kuryente na magkaroon ng path to ground gaya ng nangyayari kapg KUMIKIDLAT. Kaya, dapat grounded ang mga appliances natin at iba pang electrical loads.
Well, bakit kailangan natin ng ground wire?? Kung tutuusin, pwede gumana ang appliance kahit wala nito because it is not a part of the conducting path which supplies electricity to the appliance.
Kung tutuusin, if the ground wire is is broken or removed, you will normally not be able to tell the difference. But if high voltage has gotten in contact with the case, there may be a shock hazard. In the absence of the ground wire, shock hazard conditions will often not cause the breaker to trip unless the circuit has a ground fault interrupter in it.
Part of the role of the ground wire is to force the breaker to trip by supplying a path to ground if a "hot" wire comes in contact with the metal case of the appliance.
Sa upper part ng diagram, makikita mo ang 3-wire system. Ang ground wire ay coded with "GREEN COLOR". In the event na magkaroon ng electrical fault, at TUMAAS MASYADO ang boltahe, kailangan magtrip agad ng circuit breaker para maputol ang linya.
Kung GROUNDED ang electrical system natin, voltage), ang ground wire ngayon ang dadaaanan ng mataas na current (resulta ng mataas na voltahe), making the circuit breaker TRIP OFF.
Three-Prong PlugsSiguro mapapansin mong karamihan sa mga outlets sa bahay ay may tatlong butas. Marami kasi ngayon ang meron nang three-prong plugs.
Dalawang prong para sa daanan ng current at ang pangatlong prong para sa grounding. Karaniwan makikita sa stoves natin, sa ref at sa sa computer.
Wag na kayong magtaka nun kasi ibig lang sabihin, safe tayo.
GFCI. "ground fault circuit interrupter"These are usually installed in wall-mounted receptacles in areas where electricity and water are most likely to come in contact, such as bathrooms, laundry rooms, kitchens, and outdoors. Mas delikado kasi tayo sa mga wet areas
kung saan pwede makadaloy ang kuryente.
Meron tong mga button pasa sa TEST at RESET. GFCIs monitor electric current and can switch a circuit off before injury occurs. Alam nyo din ba, na karamihan ngayon sa mga electric hair dryers are equipped with GFCI on their plugs?? Well, dapat lang din di ba?
No comments:
Post a Comment