Pwede ding gumamit ang kahit na sino ng neon tester o screwdriver na umiilaw pag itinatapat sa wiring na live. At para miwasan ang anumang pagkakamali, pwede ding tingnan ang kulay ng mga wire.
Sa electrical, karamihan ay COLOR CODED.
1) White wires - almost always connect to other white wires or to chrome terminal screws on switches and receptacles.
2) Black wires always signify “hot” wires that conduct electricity to an outlet or switch. These are never to be utilized for a ground or neutral connection.
3) Red wires also signify “hot” wires or switch legs. In 220-volt installations, the red wire is considered the second “hot” wire.
4) Blue and yellow wires are also used for “hot” wires, usually being pulled into a conduit. Blue is usually used for travelers in three way and four way switches or as switch legs in lights and fans.
5) Yellow wires and typically used as switch legs to control switched outlets.
5) Green and bare wires and only used as ground wires. They will ground what you are working on and will normally be bonded to appliance connection and junction boxes for safety.
Madaling malaman ang mga dapat at hindi sa electrical wiring. Sa bawat kulay na meron ang isang wire, ito'y nananatiling palatandaan kung delikado ito o hindi at kung saan ito nakaconnect sa isang circuito.
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