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  1. Tha fios agaibh

    sensor to detect soccer ball

    I didn't understand a word of the video. Lol. I would use an emitter and receiver sensor made a company like Omron or Banner. Two small mirrors placed 1/3 and 2/3 the way up the opposite side will allow light path continuity from emitter to receiver.
  2. Tha fios agaibh

    Wiring a fan

    Sorry to offend your delicate sensibilities, but hooking blue to line in AU is as wrong as hooking white to line in USA. Even if it does not energize anything grounded, it is a bad practice because the next person that works on it assumes its a grounded conductor. Not a line conductor.
  3. Tha fios agaibh

    Wiring a fan

    Glad we agree, one does not make assumptions when dealing with wiring like this. Y2keddie "Connect Blue to AP. Brown to N. ( Fan housing terminal strip)" I disagree, The brown is line and the blue is N, or L2 A mistake like this could be deadly. I'm not licensed in AU either, but I'm cautious...
  4. Tha fios agaibh

    Repair of earphone cable

    Probably best to just buy a cheap earbud and steal the cable off it. Another option is to buy an audio extension cord to use. They are often a better grade cable. As far as the tech name, I would call it 2 pair shielded audio cable. This cable is a bit more stiff with a neoprene or pvc outer...
  5. Tha fios agaibh

    sensor to detect soccer ball

    Depends how large the fame is. A photo sensor would work, but if its a long distance a sensor with separate transmitter and receiver would be best. If you want to cover a large area like a soccer net, I would use a light curtain sensor.
  6. Tha fios agaibh

    Wiring a fan

    Y2keddie; "Even a licensed electrican will have to make some assumptions When wires are disconnected , mixed up, or reconnected without haing a diagram one can only make an educated guess." An electrician does not asume what wire goes where, he verifies each conductor by reading with a test...
  7. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    A bit strong but true. Technically, all electrical failures are caused by heat. Be it a fuse, or a failed component. Even vibrations produce heat, which can cause the insulation to rub off, or a conductor / filament to fail due to friction at a weak spot.
  8. Tha fios agaibh

    What is your favourite type of component?

    Well, It's like asking what is your favorite instrument in a symphony. The magic is when they are all brought together.
  9. Tha fios agaibh

    Trying to repair a shaver charger

    Looks good to me. Yes, the neutral (N) should go to the wider blade on a polarized plug. If the plug can be oriented either way (non-polarized) don't worry about it because there should not be anything grounded. I would not use it in countries that use 240v like AU and UK. (could exceed rating)...
  10. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    Merlin3189; "Current only damages them through heat" I agree, but all electrical failures are caused by heat.
  11. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    Yes, inrush current could be a contributing factor, but the smoking gun in this example is the wrong size lamp. We are all speculating because we don't know the actual transformer used here. It may be an electronic type for all we know. We don't know if they switch the primary side, or the...
  12. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    Well I can speak of that first hand because I'm a Master Electrician. Continuing education is a requirement (varies by state in USA) but costs are not unreasonable. It may seem expensive up front but an Electrician will often do the job cheaper than doing it yourself, because he has the...
  13. Tha fios agaibh

    Unknown Power Inlet

    Configuration is similar to a old British Walsall plug, except that round pin looking thing at the bottom. Can you describe that pin or take a better picture? Looks like its insulated.
  14. Tha fios agaibh

    Unknown Power Inlet

    You might want to contact the manufacture. I have never seen a configuration like that. Domestic or abroad.
  15. Tha fios agaibh

    Building wiring circuit keeps tripping breaker.

    Bob's right, your circuits are overloaded. Even two 20a breakers is probably not enough. Hire an electrician to make it right. (Gfci protection and applicable codes.)
  16. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    :p LOL; I'd be pissed off if I was paying $70 an hour labor, while the Electrician was doing advanced calculations for an obvious failure.
  17. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    You bring up a valid point that filament resistance changes with temperature. But, the fact remains that the circuit was overloaded. Whether the current increased by 47% or 50%, it is still a significant increase. When a small xfomer like this fails, temperature does not have to instantly...
  18. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    The op said "her hood vent light socket", not a car. There is usually no fuse on secondary side of circuits like this. In a pinch, I might use a 6volt lamp that was rated 5 watts or less on a 12v hood, provided the light socket was rated for 20 watts (va) or more.
  19. Tha fios agaibh

    Can a 6v light bulb blow a 12v transformer

    Most of your small low voltage transformers, can handle momentarily shorting of the secondary. More than likely, the windings failed because of overloading, which resulted in overheating and then eventually the windings shorted out internally.
  20. Tha fios agaibh

    Should wire be Twisted before Crimping?

    I agree to not twist. Lugs are designed for a certain wire gage or diameter. For smaller wire, I sometimes double the wire back(fold) and use a larger lug. Read the packaging of your lugs, It will tell you the wire it was designed for.
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