I am in a metal tiny home which does good stuff forr RF shielding but also means all house systems are in the "bedroom" so to speak. making them hard to turn off at night. Fuel stove has 2 ac motors that would be hard to replace or run on DC. Same for fridge. Running conduit is an option though.
I am in a metal tiny home which does good stuff forr RF shielding but also means all house systems are in the "bedroom" so to speak. making them hard to turn off at night. Fuel stove has 2 ac motors that would be hard to replace or run on DC. Same for fridge. Running conduit is an option though.
My off grid inverters are victron multiplus (in external building away from cabin). These are pure sine wave but likely have some amount of "chop" in the ac signal. That might look like dirty electricity.
RF near bed in uW/M^2 come in at like 15 peak and 0.5 average on a safe and sound pro 2. But ac fields are below my measurement range, by a lot. So, not sure what my priority should be.
Speaking of dirty electricity, I have heard that term but still do not understand it. Is it referring to back emf or reactive power from inductive loads? Or is it the wires in a house acting as a receiver for external sources? If that's the case, how does unpowering the line help?
Good questions again. Dirty electricity occurs as high voltage transients come in through our wiring, as our wiring acts as a receiver like you state. Turning off the power and unplugging any devices that use switch mode power supply (such as laptop and phone chargers) will help a bit, although not completely. Fluorescent bulbs also create dirty electricity through this switching mechanism because they have a switch mode power supply in their base that converts 60 Hz AC current into DC current, then changes the voltage inot a higher frequency, typically around 50,000 Hz. Dimmer switches are another source.
Your inverters may also have dirty electricity, as you mention. They can generate low-voltage DC electricity, which could raise voltage. Monitors and TVs also create dirty electricity because their components run on DC electricity.
Here's a little blurb I wrote about dirty electricity:
I bought Stetzer filters to help measure and filter the amount of dirty electricity. Some people will also buy a whole-house filter, which causes less current to travel through your wires because the voltage is in line with the current, also known as phase correction, and can also reduce magnetic fields, and increase energy efficiency.
Sorry to bug you...but the house I live in was built in 1903 and it also has some remodel wiring features. I am curious how age of home affects the things you speak of like emf
No bugging allowed Alyce! j/k Good question. Older homes can have what's called "knob and tube" wiring, which can sometimes emit higher magnetic fields, but not always. There are many other variables to consider as well, such as dirty electricity and grounding of the wire/ circuit breaker. Best way to tell is to get a meter, like the Trifield TF2 and measure, aside from getting an electrician to come in. You want them to look for "net current."
I am in a metal tiny home which does good stuff forr RF shielding but also means all house systems are in the "bedroom" so to speak. making them hard to turn off at night. Fuel stove has 2 ac motors that would be hard to replace or run on DC. Same for fridge. Running conduit is an option though.
My off grid inverters are victron multiplus (in external building away from cabin). These are pure sine wave but likely have some amount of "chop" in the ac signal. That might look like dirty electricity.
RF near bed in uW/M^2 come in at like 15 peak and 0.5 average on a safe and sound pro 2. But ac fields are below my measurement range, by a lot. So, not sure what my priority should be.
Speaking of dirty electricity, I have heard that term but still do not understand it. Is it referring to back emf or reactive power from inductive loads? Or is it the wires in a house acting as a receiver for external sources? If that's the case, how does unpowering the line help?
Good questions again. Dirty electricity occurs as high voltage transients come in through our wiring, as our wiring acts as a receiver like you state. Turning off the power and unplugging any devices that use switch mode power supply (such as laptop and phone chargers) will help a bit, although not completely. Fluorescent bulbs also create dirty electricity through this switching mechanism because they have a switch mode power supply in their base that converts 60 Hz AC current into DC current, then changes the voltage inot a higher frequency, typically around 50,000 Hz. Dimmer switches are another source.
Your inverters may also have dirty electricity, as you mention. They can generate low-voltage DC electricity, which could raise voltage. Monitors and TVs also create dirty electricity because their components run on DC electricity.
Here's a little blurb I wrote about dirty electricity:
https://romanshapoval.substack.com/i/133259607/some-power-couples-play-dirty
Here's a link to one of the studies done by Milham, the epidemiologist who wrote the book on dirty electricity:
https://pubmed.ncbi.nlm.nih.gov/23323864/
I bought Stetzer filters to help measure and filter the amount of dirty electricity. Some people will also buy a whole-house filter, which causes less current to travel through your wires because the voltage is in line with the current, also known as phase correction, and can also reduce magnetic fields, and increase energy efficiency.
Here's a link to one FYI: https://shieldedhealing.com/collections/products/products/power-perfect-box
I hope this helps clarify.
Are you an electrician, or self-taught?
Sorry to bug you...but the house I live in was built in 1903 and it also has some remodel wiring features. I am curious how age of home affects the things you speak of like emf
No bugging allowed Alyce! j/k Good question. Older homes can have what's called "knob and tube" wiring, which can sometimes emit higher magnetic fields, but not always. There are many other variables to consider as well, such as dirty electricity and grounding of the wire/ circuit breaker. Best way to tell is to get a meter, like the Trifield TF2 and measure, aside from getting an electrician to come in. You want them to look for "net current."