Going off-grid without electrical pollution

Note: We plan to put up a similar all-DC system that will have a (Sundanzer )DC refrigerator and freezer.  Todeal with the electrical pollution created by the compressors, we are puttingthese on their own system, completely isolated from the rest of our system, andplacing them along an outside wall away from areas where we spend time. Wechose to do this in case propane is not affordable or readily available in thefuture.  -Shivani Arjuna, www.LifeEnergies.com

~ ~ ~ ~
 
Here is information about Going Off-Grid Safely which turnsout, unfortunately, not to be as easy as it should be.  I hope you find ithelpful.  As it mentions, there is now a version of the Graham/Stetzermicrosurge meter (a.k.a. Stetzerizer meter) that can be used to measure on DCsystems.  I would encourage anyone with a DC system to get one.  Ifully expect it to be an eye-opening experience and may help to explain whymany people on DC systems are still experiencing symptoms of rf sickness. Please pass this information on widely.  It can be found on mywebsite, www.electricalpollution.com,or more directly at http://www.electricalpollution.com/OffgridSafely.html
 
Best, Catherine Kleiber, host ofwww.electricalpollution.com
 
 
 
Going Off-grid Safely
 
 
 
 
 
 
 
 
 
 
 
The only known cure for Radio  Wave Sickness is to stop being exposed to high frequencies.
 
 
 
 
 
I was sick with what was ultimately diagnosed as chronic  fatigue syndrome for nearly 5 years before I stumbled across a mention of  electrical pollution in an agricultural magazine. It was life changing. For  me, it turned out that the cause of my chronic fatigue syndrome was  over-exposure to radiofrequencies on electrical wiring. It would have  properly been diagnosed as radiofrequency sickness if the mainstream medical  community had been aware of it. I began my recovery by turning off all  non-essential circuits in the house. As soon as they became available, I  installed Graham/Stetzer filters (a.k.a. Stetzerizer filters), they made  further recovery possible.
 
After I  had been well for over eight years, we were faced with the prospect of forced  installation of transmitting utility meters or having our power cut off. The  former was not an option, since we knew how sick we would all be. So, we  began researching how to be independent of the utility, safely.
 
People,  including us, who are contending with illness due to exposure to  radiofrequency radiation either from "dirty" power or transmitted  radiofrequency radiation (wireless technology) often think that going  off-grid with a DC (direct current) electrical system will solve their  problems.
 
Unless  the system is carefully researched and engineered, meticulously installed,  and then appropriate filtering is installed to eliminate the radiofrequency  signals that inevitably result from the operation of most components  available today, this will NOT be the case.
 
Most DC  systems are inherently polluted with high frequencies due to the equipment  that is used within the system. This can be measured with a specially  designed Graham/Stetzer Microsurge Meter. The Graham/Stetzer Microsurge Meter  gives a good indication of whether the electrical pollution present on the  system will have an adverse effect on human health. The norms indicated on  the meters (optimal below 30 G/S units and acceptable to 50 G/S units) were  determined by tests performed in Kazakhistan and standardized to their  radiofrequency radiation standards established to prevent biological harm to  the population. These meters are available from Stetzer Electric, which can  be reached by phone at (608) 989-2571 or at their website http://www.stetzerelectric.com/.  Questions can be directed to [hidden email]
 
Inverters  used to convert DC to AC are usually extremely electrically polluting.  Caution should be exercised in trying to filter them. It may be best done by  the manufacturer. I have not yet heard of one that does not have extremely  high readings on the Graham/Stetzer Microsurge meter a.k.a. Stetzerizer  Meter.
 
Most  off-grid systems have at least some portion of the system run off of an  inverter. Inverters are usually HIGHLY electrically polluting. They usually  pollute the entire system that is connected to them when they operate, likely  including the DC system if the two systems are connected at all. (If this  seems incredible to you, take a Graham/Stetzer Microsurge meter for DC systems  and do measurements on such a system.) Several inverter systems measured have  readings from 1500 G/S units to over 2000 G/S units. Thus, such an inverter  cannot be part of a "clean" system unless sufficient filtering is  possible. ALL grid-tie systems have inverters. Use a Graham/Stetzer  Microsurge meter to see how it affects the power quality in a home with a  grid-tie system. Turn the system on and off and see what the readings do.
 
On the  bright side a straight DC system can be highly efficient. Inverters can cost  as much as 50% in efficiency. So going DC can nearly double the yield from  the same solar panels.
 
In order  to set up a "clean" DC system, it is imperative that you research  EVERY component of the system. Most manufacturers are quite up front about  any radiofrequency interference (RFI), signaling frequencies, electrical  noise, or high frequency "sewage" that their device puts out or  uses. In general, if a device has a "controller" instead of an  on/off switch you will want to check into it. "Controller" can  often mean that radiofrequency/high frequency signaling was used or that  potentially polluting circuitry was used. When getting a motor-driven device,  look for single speed motors, not motors with variable speed frequency  drives. Also, look for brushless motors since they are generally  "cleaner" than brush motors. Avoid lights or other devices that use  pulse width modulation or switching power supplies or other switching  electronics.
 
Some  common components that can be problematic:
 
Battery  chargers are  often highly electrically polluting. Both AC grid-based battery chargers and  generator operated battery chargers often are highly electrically polluting.  If absolutely necessary, a battery charger can be used, but, unless you can  find a "clean" one, you should plan to not be around any wiring  attached to the charger while the charging is occurring. It should be kept  completely off and/or disconnected the rest of the time.
 
Charge  controllers can  also be highly polluting. Great care should be used in selecting a charge  controller. Many charge controllers use pulse width modulation, another  switching technology that results in electrical pollution. Some charge  controllers do not employ this technology at all and others allow it to be  turned off.
 
Voltage  converters can  be highly polluting devices. Unless you can find a "clean" voltage  converter, it is best to design your system to run at the voltage you will be  using or use other methods of generating multiple voltage levels or using  different voltage equipment e.g. connecting in series or tapping batteries  differently.
 
Back-up  generators can  be highly polluting. These are usually used for generating 60 Hz power for a  house that loses power temporarily or to provide power to an AC device that  is prohibitively far from the electrical grid. While most are quite  electrically polluting, some are not. Be sure to use the Graham/Stetzer  Microsurge meter to check the specific make and model you wish to purchase  prior to making a purchase. The power quality varies greatly model to model.
 
For more  information on DC solar systems, you may want to read "Photovoltaics  Design and Installation Manual" by Solar Energy International. I highly  recommend reading it before even contacting a professional so you are  knowledgeable independently. Most professionals know little or nothing about  the power quality issues inherent in an off-grid system. They can install a  system; you will need to be sure it is "clean" enough for you to be  healthy. One way to help with that is to have a minimal amount of wiring so  that you are not so highly exposed to any pollution. Another way is to have  the home wiring completely disconnected from the polluting and constantly  live portion of the system. Then, only plug in the majority of the wiring in  the evening when the lights are needed and unplug it again at night.
 
We have a  48 volt system powered by four 175 watt solar panels. We got a 48 volt system  so that we could run the well-pump we needed. However, there are some  distinct pluses to having a 48 volt system. For instance, the higher voltage  allows us to make longer wire runs with smaller wire. We are able to use our  existing wiring to power the LED lights throughout the house due to the  higher voltage. The higher voltage has made some of the electronics  conversions possible. For instance, the printer/fax/copier required 30 volts.  It does, however, make it a bit more challenging to use the gizmos designed  for 12 or 24-volt systems. Fortunately, we never had many gizmos. Also, small  stand-alone solar chargers can be used by those on and off-grid to charge  battery operated electronics. They can be left in the sun to charge in areas  away from humans and pets, to minimize exposure to the polluted  electromagnetic fields that are likely to result. The system provides plenty  of power for our needs during the vast majority of the year. We usually only  have to charge briefly every few days.
 
Here  are a few of the ways that we have maintained as normal a life as possible  while going off-grid:
 
Refrigeration - We have a propane  refrigerator. We had originally wanted to get a DC refrigerator and chest  freezer, but discovered that the compressor being used at the time was highly  polluting. We are enjoying our propane refrigerator. The only difference we  find is that as ambient temperature changes on a seasonal basis, we have to  adjust the temperature control. We are still without a large freezer for our  home use.  
 
Heat - We installed a gravity  flow hot water system. Read How  Come? Hydronics Heating Questions We've Been Asking For More Than 100 Years  (with straight answers) by Dan Holohan to find out more. The book  can be obtained through his websitehttp://www.HeatingHelp.com.  We used the overhead system as he describes with a few modifications. Modern  modifications include: a closed system (no external oxygen exchange which  prevents system oxidation) with a modern diaphragm pressure tank mounted off  of the boiler, boiler operates off of a millivolt thermostat, with no minimum  temperature requirement only a high temperature shut-off on the boiler, thus  it only heats as much as necessary. We have found that the system heats much  more evenly and efficiently than our forced air furnace had. Quiet too.  Completely non-electric gravity flow boilers are still available, but a  doctor's letter and proof of inability to have electricity may be necessary.  We do not have the system permanently plugged into a water refill to avoid  electrical current transfer from the water system. We fill with a hose. We  have several dielectric unions in the gas line. We also have plastic line  from the LP tank (a potential rf collector) to the house.
 
Lights - We have tried various LED  possibilities. With the very low amperage LEDs draw and the higher voltage  (48V) our existing wiring has been fine to use. This would not necessarily be  true at lower voltages or higher amperages.
 
We have  hooked two 24 volt LED automotive bulbs in series so we can run them on our  48 volt system. We use several pairs of these in a fixture. According to the  manufacturer, at that time, the Dialight  586-4606-105F (28VDC) bulbs, and sister bulbs, did not use pulse width  modulation. A base that converts the standard Edison base to the S-8 base,  which these have, can be purchased from Kansas Windpower (http://www.KansasWindpower.net).  It is item L450. Many of the lightbulbs available for purchase for home use  do use pulse width modulation.
 
We have  also used LEDs (C513A-WSN-CV0Y0151-ND from http://www.digikey.com/) connected  securely with a good twist and some solder in series so that they add up to  the correct voltage. We have set them up using a screw in base and baby food  jar covers for ease of cleaning and to diffuse the light. We prefer to point  the LED lights up at our white ceilings. We find that this diffuses the light  well, resulting in a much more even distribution of light within the room.
 
Sump  Pump - This  was hard. Most bilge pumps (the solution originally recommended to me) are  still brush motors and their capacity was too small. We finally settled on  the pump from Wayne Pumps' 24 volt ESP-45 back-up pump system (http://waynepumps.com/index.cfm/product/56/esp45.cfm),  as the best solution. It was part number 06710. We are still waiting to see  how it holds up long-term since it is a back-up pump, but so far it works  like a charm, doing a lot of pumping on not a lot of electricity. We have two  hooked up in series and activated by the same float switch. It does require a  bit of wiring work.
 
Well  Pump - We  got a powerful pump since we need to pump volumes of water at times. It is  controlled by a pressure switch, no controller, which would have used high frequency  signaling. It allows our system to continue functioning the same as it used  to, including the pressure tank.
 
Solar  System - We  got help designing our system from the helpful folks at Backwoods Solar (http://www.backwoodssolar.com).  They will not necessarily automatically design a "clean" system,  but they were very obliging about providing phone numbers so I could ask the  technical questions that I needed to and then re-designing the system with  the answers in mind.
 
Electronics - We have successfully  converted various electronics to run on our DC system. Most electronics are  DC creatures anyway. The box at the end of the cord converts the AC to DC. It  is usually highly polluting with a large electromagnetic field and uses  electricity the whole time it is plugged in. (To conserve energy even on a  utility system, unplug them or have them on a power strip that is turned off  when not in use.) These converters usefully have what voltage DC the converter  puts out so then it is a matter of having a knowledgeable professional remove  the box and input the proper voltage from a DC system.
 
All the  components we got (except lights) required additional electrical filtering to  make them clean enough according to the reading from Graham/Stetzer Meter.  (In spite of all the care I took in avoiding deliberate radiofrequency  pollution, there was plenty of inadvertent electrical pollution to go around.  Some levels were quite high.) In a pinch, the commercial Graham/Stetzer  filters can be used on a DC system, however they can drain batteries so  caution is required. In addition, 0.1 microfarad capacitors can be used to  help filter the extremely high frequencies generated. I would recommend  contacting Dave Stetzer to help design filters for your system. Stetzer  Electric can be reached by phone at (608) 989-2571 or at their websitehttp://www.stetzerelectric.com/.  Questions can be directed to [hidden email]
 
Good luck!  If you have any questions please email me at: [hidden email]
 
 

 
 


[Non-text portions of this message have been removed]

many thanks for this - puk
 
 
In a message dated 15/04/2012 00:53:50 GMT Daylight Time, [hidden email]  
writes:

 
 
 

Note: We plan to put up a similar all-DC system that will have a  
(Sundanzer )DC refrigerator and freezer. Todeal with the electrical pollution  
created by the compressors, we are puttingthese on their own system,  completely
isolated from the rest of our system, andplacing them along an  outside wall
away from areas where we spend time. Wechose to do this in case  propane is
not affordable or readily available in thefuture. -Shivani Arjuna,  
www.LifeEnergies.com

~ ~ ~ ~

Here is information about Going  Off-Grid Safely which turnsout,
unfortunately, not to be as easy as it should  be. I hope you find ithelpful. As it
mentions, there is now a version of the  Graham/Stetzermicrosurge meter
(a.k.a. Stetzerizer meter) that can be used to  measure on DCsystems. I would
encourage anyone with a DC system to get one.  Ifully expect it to be an
eye-opening experience and may help to explain  whymany people on DC systems are
still experiencing symptoms of rf sickness.  Please pass this information on
widely. It can be found on mywebsite,  www.electricalpollution.com,or more
directly at _http://www.electricalpollution.com/OffgridSafely.html_
(http://www.electricalpollution.com/OffgridSafely.html)

Best,  Catherine Kleiber, host ofwww.electricalpollution.com



Going  Off-grid Safely











The only known  cure for Radio Wave Sickness is to stop being exposed to
high  frequencies.





I was sick with what was ultimately  diagnosed as chronic fatigue syndrome
for nearly 5 years before I stumbled  across a mention of electrical
pollution in an agricultural magazine. It was  life changing. For me, it turned out
that the cause of my chronic fatigue  syndrome was over-exposure to
radiofrequencies on electrical wiring. It would  have properly been diagnosed as
radiofrequency sickness if the mainstream  medical community had been aware of
it. I began my recovery by turning off all  non-essential circuits in the
house. As soon as they became available, I  installed Graham/Stetzer filters
(a.k.a. Stetzerizer filters), they made  further recovery possible.

After I had been well for over eight years,  we were faced with the
prospect of forced installation of transmitting utility  meters or having our power
cut off. The former was not an option, since we  knew how sick we would all
be. So, we began researching how to be independent  of the utility, safely.

People, including us, who are contending with  illness due to exposure to
radiofrequency radiation either from "dirty" power  or transmitted
radiofrequency radiation (wireless technology) often think that  going off-grid with a
DC (direct current) electrical system will solve their  problems.

Unless the system is carefully researched and engineered,  meticulously
installed, and then appropriate filtering is installed to  eliminate the
radiofrequency signals that inevitably result from the operation  of most
components available today, this will NOT be the case.

Most DC  systems are inherently polluted with high frequencies due to the
equipment  that is used within the system. This can be measured with a
specially designed  Graham/Stetzer Microsurge Meter. The Graham/Stetzer Microsurge
Meter gives a  good indication of whether the electrical pollution present
on the system will  have an adverse effect on human health. The norms
indicated on the meters  (optimal below 30 G/S units and acceptable to 50 G/S
units) were determined by  tests performed in Kazakhistan and standardized to
their radiofrequency  radiation standards established to prevent biological
harm to the population.  These meters are available from Stetzer Electric,
which can be reached by  phone at (608) 989-2571 or at their website
_http://www.stetzerelectric.com/._ (http://www.stetzerelectric.com/)   Questions can
be directed to _sales@stetzerelectric.com_ (mailto:[hidden email])

Inverters  used to convert DC to AC are usually extremely electrically
polluting. Caution  should be exercised in trying to filter them. It may be best
done by the  manufacturer. I have not yet heard of one that does not have
extremely high  readings on the Graham/Stetzer Microsurge meter a.k.a.
Stetzerizer  Meter.

Most off-grid systems have at least some portion of the system  run off of
an inverter. Inverters are usually HIGHLY electrically polluting.  They
usually pollute the entire system that is connected to them when they  operate,
likely including the DC system if the two systems are connected at  all. (If
this seems incredible to you, take a Graham/Stetzer Microsurge meter  for
DC systems and do measurements on such a system.) Several inverter systems  
measured have readings from 1500 G/S units to over 2000 G/S units. Thus, such
 an inverter cannot be part of a "clean" system unless sufficient filtering
is  possible. ALL grid-tie systems have inverters. Use a Graham/Stetzer
Microsurge  meter to see how it affects the power quality in a home with a
grid-tie  system. Turn the system on and off and see what the readings do.

On the  bright side a straight DC system can be highly efficient. Inverters
can cost  as much as 50% in efficiency. So going DC can nearly double the
yield from the  same solar panels.

In order to set up a "clean" DC system, it is  imperative that you research
EVERY component of the system. Most manufacturers  are quite up front about
any radiofrequency interference (RFI), signaling  frequencies, electrical
noise, or high frequency "sewage" that their device  puts out or uses. In
general, if a device has a "controller" instead of an  on/off switch you will
want to check into it. "Controller" can often mean that  radiofrequency/high
frequency signaling was used or that potentially polluting  circuitry was
used. When getting a motor-driven device, look for single speed  motors, not
motors with variable speed frequency drives. Also, look for  brushless motors
since they are generally "cleaner" than brush motors. Avoid  lights or
other devices that use pulse width modulation or switching power  supplies or
other switching electronics.

Some common components that  can be problematic:

Battery chargers are often highly electrically  polluting. Both AC
grid-based battery chargers and generator operated battery  chargers often are
highly electrically polluting. If absolutely necessary, a  battery charger can be
used, but, unless you can find a "clean" one, you  should plan to not be
around any wiring attached to the charger while the  charging is occurring. It
should be kept completely off and/or disconnected  the rest of the time.

Charge controllers can also be highly polluting.  Great care should be used
in selecting a charge controller. Many charge  controllers use pulse width
modulation, another switching technology that  results in electrical
pollution. Some charge controllers do not employ this  technology at all and others
allow it to be turned off.

Voltage  converters can be highly polluting devices. Unless you can find a
"clean"  voltage converter, it is best to design your system to run at the
voltage you  will be using or use other methods of generating multiple
voltage levels or  using different voltage equipment e.g. connecting in series or
tapping  batteries differently.

Back-up generators can be highly polluting.  These are usually used for
generating 60 Hz power for a house that loses power  temporarily or to provide
power to an AC device that is prohibitively far from  the electrical grid.
While most are quite electrically polluting, some are  not. Be sure to use
the Graham/Stetzer Microsurge meter to check the specific  make and model you
wish to purchase prior to making a purchase. The power  quality varies
greatly model to model.

For more information on DC solar  systems, you may want to read
"Photovoltaics Design and Installation Manual"  by Solar Energy International. I highly
recommend reading it before even  contacting a professional so you are
knowledgeable independently. Most  professionals know little or nothing about
the power quality issues inherent  in an off-grid system. They can install a
system; you will need to be sure it  is "clean" enough for you to be healthy.
One way to help with that is to have  a minimal amount of wiring so that
you are not so highly exposed to any  pollution. Another way is to have the
home wiring completely disconnected from  the polluting and constantly live
portion of the system. Then, only plug in  the majority of the wiring in the
evening when the lights are needed and  unplug it again at night.

We have a 48 volt system powered by four 175  watt solar panels. We got a
48 volt system so that we could run the well-pump  we needed. However, there
are some distinct pluses to having a 48 volt system.  For instance, the
higher voltage allows us to make longer wire runs with  smaller wire. We are
able to use our existing wiring to power the LED lights  throughout the house
due to the higher voltage. The higher voltage has made  some of the
electronics conversions possible. For instance, the  printer/fax/copier required 30
volts. It does, however, make it a bit more  challenging to use the gizmos
designed for 12 or 24-volt systems. Fortunately,  we never had many gizmos.
Also, small stand-alone solar chargers can be used  by those on and off-grid
to charge battery operated electronics. They can be  left in the sun to
charge in areas away from humans and pets, to minimize  exposure to the polluted
electromagnetic fields that are likely to result. The  system provides
plenty of power for our needs during the vast majority of the  year. We usually
only have to charge briefly every few days.

Here are a  few of the ways that we have maintained as normal a life as
possible while  going off-grid:

Refrigeration - We have a propane refrigerator. We had  originally wanted
to get a DC refrigerator and chest freezer, but discovered  that the
compressor being used at the time was highly polluting. We are  enjoying our propane
refrigerator. The only difference we find is that as  ambient temperature
changes on a seasonal basis, we have to adjust the  temperature control. We
are still without a large freezer for our home use.  

Heat - We installed a gravity flow hot water system. Read How Come?  
Hydronics Heating Questions We've Been Asking For More Than 100 Years (with  
straight answers) by Dan Holohan to find out more. The book can be obtained  
through his _websitehttp://www.HeatingHelp.com._
(websitehttp://www.HeatingHelp.com./)   We used the overhead system as he describes with a few
modifications. Modern  modifications include: a closed system (no external oxygen
exchange which  prevents system oxidation) with a modern diaphragm pressure tank
mounted off  of the boiler, boiler operates off of a millivolt thermostat,
with no minimum  temperature requirement only a high temperature shut-off on
the boiler, thus  it only heats as much as necessary. We have found that the
system heats much  more evenly and efficiently than our forced air furnace
had. Quiet too.  Completely non-electric gravity flow boilers are still
available, but a  doctor's letter and proof of inability to have electricit y may
be necessary.  We do not have the system permanently plugged into a water
refill to avoid  electrical current transfer from the water system. We fill
with a hose. We  have several dielectric unions in the gas line. We also have
plastic line from  the LP tank (a potential rf collector) to the house.

Lights - We have  tried various LED possibilities. With the very low
amperage LEDs draw and the  higher voltage (48V) our existing wiring has been fine
to use. This would not  necessarily be true at lower voltages or higher
amperages.

We have  hooked two 24 volt LED automotive bulbs in series so we can run
them on our 48  volt system. We use several pairs of these in a fixture.
According to the  manufacturer, at that time, the Dialight 586-4606-105F (28VDC)
bulbs, and  sister bulbs, did not use pulse width modulation. A base that
converts the  standard Edison base to the S-8 base, which these have, can be
purchased from  Kansas Windpower (_http://www.KansasWindpower.net_
(http://www.kansaswindpower.net/) ). It  is item L450. Many of the lightbulbs
available for purchase for home use do  use pulse width modulation.

We have also used LEDs  (C513A-WSN-CV0Y0151-ND from
_http://www.digikey.com/_ (http://www.digikey.com/) ) connected securely  with a good twist and
some solder in series so that they add up to the correct  voltage. We have set
them up using a screw in base and baby food jar covers  for ease of cleaning
and to diffuse the light. We prefer to point the LED  lights up at our
white ceilings. We find that this diffuses the light well,  resulting in a much
more even distribution of light within the  room.

Sump Pump - This was hard. Most bilge pumps (the solution  originally
recommended to me) are still brush motors and their capacity was  too small. We
finally settled on the pump from Wayne Pumps' 24 volt ESP-45  back-up pump
system (_http://waynepumps.com/index.cfm/product/56/esp45.cfm_
(http://waynepumps.com/index.cfm/product/56/esp45.cfm) ),  as the best solution. It was
part number 06710. We are still waiting to see  how it holds up long-term since
it is a back-up pump, but so far it works like  a charm, doing a lot of
pumping on not a lot of electricity. We have two  hooked up in series and
activated by the same float switch. It does require a  bit of wiring work.

Well Pump - We got a powerful pump since we need to  pump volumes of water
at times. It is controlled by a pressure switch, no  controller, which would
have used high frequency signaling. It allows our  system to continue
functioning the same as it used to, including the pressure  tank.

Solar System - We got help designing our system from the helpful  folks at
Backwoods Solar (_http://www.backwoodssolar.com_
(http://www.backwoodssolar.com/) ). They  will not necessarily automatically design a "clean" system,
but they were very  obliging about providing phone numbers so I could ask the
technical questions  that I needed to and then re-designing the system with
the answers in  mind.

Electronics - We have successfully converted various electronics  to run on
our DC system. Most electronics are DC creatures anyway. The box at  the
end of the cord converts the AC to DC. It is usually highly polluting with  a
large electromagnetic field and uses electricity the whole time it is  
plugged in. (To conserve energy even on a utility system, unplug them or have  
them on a power strip that is turned off when not in use.) These converters  
usefully have what voltage DC the converter puts out so then it is a matter
of  having a knowledgeable professional remove the box and input the proper  
voltage from a DC system.

All the components we got (except lights)  required additional electrical
filtering to make them clean enough according  to the reading from
Graham/Stetzer Meter. (In spite of all the care I took in  avoiding deliberate
radiofrequency pollution, there was plenty of inadvertent  electrical pollution to
go around. Some levels were quite high.) In a pinch,  the commercial
Graham/Stetzer filters can be used on a DC system, however they  can drain
batteries so caution is required. In addition, 0.1 microfarad  capacitors can be
used to help filter the extremely high frequencies  generated. I would
recommend contacting Dave Stetzer to help design filters  for your system. Stetzer
Electric can be reached by phone at (608) 989-2571 or  at their
_websitehttp://www.stetzerelectric.com/._ (websitehttp://www.stetzerelectric.com/)  
Questions can be directed to _sales@stetzerelectric.com_
(mailto:[hidden email])

Good  luck! If you have any questions please email me at:
_webmaster@electricalpollution.com_ (mailto:[hidden email])



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