Re: ACL Lights for Dummies Manual - Feedback thread
Chill, (et All)
You raise some good point but I will agree to disagree over this section.
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“Low Voltage DC is safe to use and work with and is an ideal voltage for our hobby. The difference in the wiring of a DC controller to an AC controller is just the names of the terminals as in both cases you must ensure you have the correct wires connected to the correct terminals or else permanent damage may occur to the controller. So to sum it up in very basic terms
Mains Active Line (A) in the DC world is equivalent to Positive + Line
Mains Neutral Line (N) in the DC world is equivalent to Negative – Line
Remember that DC controllers will only work with a low voltage DC power supply and AC controllers will only work with an AC mains voltage supply. Never mix the two.
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At a basic level this is correct. At a higher technical level there are any number of points and differences that could be made.
All the concerns about shorts, blowing things up, fire risks etc all still apply in the 110/240v arena with 10A-20A circuits normal.
Nearly all the smaller SMPS's used (ie the 350W models) will go into overload shutdown when shorted out.
The continued promotion of SAFE is about safety from electrocution..... DC Low Voltage up to the 48V line is considered safe by electrical authorities, even 24V AC is considered "safe" though grabbing exposed 24V AC wiring shouldn't be something you aim to do.
Now concerns about the current used and the potential for fire, sparks and melted palstic should be noted in big bold type, no auguement there and a good pickup. I actually have some graphic photos of melted pixels after they shorted out with a 100A supply delivering current, so this risk is real and needs documenting.
Low voltage DC is the ideal Voltage Type and Voltage Value for this hobby due to it's inherent electrical safety, ability to used in all weather conditions without fear of ground faults or elecrocution.
Phil
Chill, (et All)
You raise some good point but I will agree to disagree over this section.
-------------
“Low Voltage DC is safe to use and work with and is an ideal voltage for our hobby. The difference in the wiring of a DC controller to an AC controller is just the names of the terminals as in both cases you must ensure you have the correct wires connected to the correct terminals or else permanent damage may occur to the controller. So to sum it up in very basic terms
Mains Active Line (A) in the DC world is equivalent to Positive + Line
Mains Neutral Line (N) in the DC world is equivalent to Negative – Line
Remember that DC controllers will only work with a low voltage DC power supply and AC controllers will only work with an AC mains voltage supply. Never mix the two.
---------------------
At a basic level this is correct. At a higher technical level there are any number of points and differences that could be made.
All the concerns about shorts, blowing things up, fire risks etc all still apply in the 110/240v arena with 10A-20A circuits normal.
Nearly all the smaller SMPS's used (ie the 350W models) will go into overload shutdown when shorted out.
The continued promotion of SAFE is about safety from electrocution..... DC Low Voltage up to the 48V line is considered safe by electrical authorities, even 24V AC is considered "safe" though grabbing exposed 24V AC wiring shouldn't be something you aim to do.
Now concerns about the current used and the potential for fire, sparks and melted palstic should be noted in big bold type, no auguement there and a good pickup. I actually have some graphic photos of melted pixels after they shorted out with a 100A supply delivering current, so this risk is real and needs documenting.
Low voltage DC is the ideal Voltage Type and Voltage Value for this hobby due to it's inherent electrical safety, ability to used in all weather conditions without fear of ground faults or elecrocution.
Phil