Sorry, (really NOT), to disagree with you DOC............BIG TIME!!!
Two wire service drop for the MAJORITY of the Philippines is ~~ONLY~~ 220vac............PERIOD!!! NO 110vac can be taped off......PERIOD!!! There are ~~NO~~ two 110vac HOT wires in the Philippine with a two wire service drops!!!!
Now, where the Americans set up the power system in the Philippines many many DECADES AGO, with a 3 pole transformers at the service drop, 110vac ~~CAN BE~~ taped off.
Those location within the Philippines can be found in the Luzon and Baguio areas. NO WEAR ELSE in the Philippines without a voltage drop transformer of some kind!
So you say, \"that means there is already 110 volt service to your home, just that the wire to ground is missing.\"
If you really believe that with the 220vac 2 wire service....................go ahead and plug in your 110vac stuff and we all will watch the smoke!!
Two wire 220vac service in the Philippines is DIRTY POWER. In other words, there not even 220vac on one leg and a return. In other words ~~NOT~~ your 2- 110vac legs. GET REAL!!!!
I have PERSONALLY check, (hot to earth/return to earth), in a number of places across this Country, meaning more then one electric supplier involved!
I don\'t know what \"Doctor\" you are, but you need to do more research about the Philippines before posting as~~FACTS~~ IMO!!!
Peoples lives depends on such ~~FACTS~~ given and no more so then electric power in the Philippines! This AIN\'T the USA or most likely anywhere else in the World!!
BTW, in the USA, you\'ll have a 3 wire service drop to your house with 2 legs with 110vac each, just like a small area of the overall Philippine Country.
Oh yes Mr electric, with 110vac drawing TWICE the amperage then 220vac. Therefore, what safety measure do you recommend in a system?
B-Ray
The Philippines uses the same electrical setup as the US. It is a two-phase 110 volt circut to the house. There are two hot wires coming into the house, each 110 volts, but 180 degrees out of phase, so that the voltage across the two hot wires is 220 volts. The voltage from either hot wire to ground is 110 volts. Filipinos seldom, if ever, put a ground wire into the house circuit, as all appliances sold in the Philippines are 220 volts. For the US expat, that means there is already 110 volt service to your home, just that the wire to ground is missing. In fact, your circuit breaker/fuse box probably doesn\'t even have a neutral or ground bus. But you can easily have one installed, and wire some of the outlets to be 110 volts, without having to use any transformers. You just intall the ground wire and hook one side of the outlet to the ground wire.
The biggest danger to 110 volt appliance is that the Philippines routinely use the US two-blade 110 volt socket for 220 volts. This allows you to plug in your 110 volt appliance and fry it. if you are going to convert some of your outlets to 110 volts, it is a good idea to change all your 220 volt outlets to the European standard two round pins. Then no one in your home can inadvertently fry your 110 volt appliances.
Note to Brits and Aussies - this is very different from British standard, which uses only one hot 240 volt single phase wire. In your home country, only one wire is hot. But in the Philippines, both wires are hot (though only 110 volts). So be careful when you are grabbing wires in the house.