Elektrosmog sources | Lowfrequency | Highfrequency 1 | 2 | 3 | Antenna policy |
Lowfrequency
Everything that is coming from
a wallsocket, and via powerlines is transported, is regarded as lowfrequency.
And all appliances and cables connected to it cause *elektrosmog*.
Lowfrequency fields are
mainly present very close to the cables and appliances.
The larger the distance to these fields the less they can have an influence
to our body.
As soon as there is tension on a cable or appliance, and nu current is yet flowing, there is only an elektrical alternating field (50 Hz or 60 Hz abroad, or 50 times per second alternating).
Only when an appliance has been switched on, current is flowing through the cable and the appliance, and there is now also a magnetic alternating field. (The elektrical field is than normally a bit less).
When there is only transport through the cable or appliance, the magnetic field has a certain value. But when this current has to be transformed, this magnetic field will become much larger.
This happens for instance withj
transformers, also those
small ones used for loading.
And of course in electrical appliances with built-in trafo's,
like radioclocks, adjustable mattress holders, halogen lamps
trafo's for TFT monitors, etc.
A bedside electrical alarmclock can give a
magnetic field 5 times that of a powerline!
A distance of 2-3 meter to lowfrequency
fields is to be
preferred. That makes a big difference.
Heating elements, elektrical
blankets, waterbeds
(which incorporate a heating element).
Fluorescent lamps can also give enormous fields.
With an *older* TL lamp I measured 70-90 nT.
With newer, and shorter ones, it was 6.000 nT.
Powerlines
Powerlines do have large magnetic
alternating fields. We advise a distance of minimal 300 meter. This also in
connection with electrically charged air-ions, corona ions, *nanoaerosols*
which are potentially quite toxic, and which can be blown in your direction
by the wind.
By measurements, I have found that those powerline masts can *leak* through
their concrete foundations, and in kitchen gardens ca. 200 meter away still
values of 250 nT show.
On the other hand, when those
powerline cables hang not single, but hang together with for instance three
cables, the magnetic fields are much less (french method, see picture below).
In de Telegraaf van zaterdag
31
januari 2004 heeft staats-
secretaris Van Geel het over
een plan van aanpak.
Met het Interprovinciaal Overleg
(IPO), de Vereniging Nederlandse
Gemeenten (VNG) en EnergieNed,
de branche-organistaie van de
energie-bedrijven, wil Van Geel in
de toekomst voorkomen dat
nieuwe hoogspanningsmasten in
de buurt van scholen en huizen
worden geplaatst.
Met deze aanpak van risico's
wil
de bewindsman op zijn terrein
het beleid ontnuchteren en
verzakelijken.
Dat was januari.
De toekomst is
echter al lang begonnen en het
wordt tijd dat de bewindsman
zijn belofte nakomt.
Info | SBM-2003 | Building Biology house investigation | Literature | Alternativ | Links | Contact |
Measurements close to transformer-houses,
against their walls showed magnetic fields, but at
ca 2 meter distance negligible.
(However I cannot guarantee that this is the case with ALL transformer-houses.)
Stray currents
We also know the phenomena of
stray currents. Those are fields, running through the ground and then via
gas, water- and other pipings running into the house.
They may occur when the rails of trains or trams not sufficiently are grounded.
(The current runs via the overhead line into the vehicles and via the rails
drained away. Trains and tramways run in the netherlands on DC, 1500 V; the
Betuweroute and HSL will go on AC, 25 kV.)
Underground cables, which have been damaged, can also bring about stray currents.
As well as wrong connected electrical
appliances (or which have defects) can cause stray currents, which can be
drained out by an ground wire, but also being picked up by others.
It is not impossible, that gropund wires can spread stray currents.
Because a lot of the cable works in houses are not shielded, they can pick up high frequency signals and radiate them inside, and possibly cause a (highfrequent) overload on the lowfrequent electric mains.
Info on Powerlines:
Attention: Authorities prefer the use of the unit uTesla,
or microTesla.
In the building biology is the
prevailing unit nT, or nanoTesla.
1 uT = 1000 nT !!!!!!!!!
0,2 uT = 200 nT
The only electrical appliance,
for which there are radiation norms is the computer monitor.
These radiation norms are according the swedish TCO norm, and it says max
200 nT;
that is for the frequency range of 5 Hz to 2 KHz:
For the frequency range from 2 KHz up to 400 KHz only max. 25 nT
are allowed!
The SBM-2003 guide lines for bedrooms considers
20 nT sufficient enough.
Groenboek.pdf | dutch document by Stichting HAN
NRPB Report on scientific evidence |
Breast cancer ..norwegian study shows within 100 meter women have 60 % more risk for breastcancer
British government withheld report on linking childhood leukaemia and power lines for 3 years
EMF II Studie , where 200 nT in households may lead to leukemia, especially at night.
Leukemierisico onder hoogspanningsleidingen hoger: within 200 meter 70 % more chance(statistisch onderzocht)
California Report
Comments of Miller.pdf | comments California EMF Report
Comments Roger Conant.pdf | comments California Report
California Report: | USA study on powerlines, took 9 years and costs 7 million US$.
CoverPages.pdf
ExecSumm.pdf
Overview.pdf
Tableof Contents.pdf
Chapter1.pdf
Chapter2.pdf
Chapter3.pdf
Chapter4.pdf
Chapter5.pdf
Chapter6.pdf
Chapter7.pdf
Chapter8.pdf
Chapter9.pdf
Chapter10.pdf
Chapter11.pdf
Chapter12.pdf
Chapter13.pdf
Chapter14.pdf
Chapter15.pdf
Chapter16.pdf
Chapter17.pdf
Chapter18.pdf
Chapter19.pdf
Chapter20.pdf
Chapter21.pdf
Appendix1.pdf
Appendix2.pdf
Appendix3.pdf
Appendix4.pdf
Appendix5.pdf
Appendix6.pdf
Appendix7.pdf
Appendix8.pdf
Bibliography.pdf
Read on Highfrequency
By measuring I have found, that
those mastodonts
in the landscape, the enormous windturbines, of
which those propellors turn awfully frightful, the
elektrosmog is practically nihil.
Probably because the cables lie under the ground.
Although these enormous windmills do not cause
elektrosmog, from viewpoints of the environment
some drawbacks can be noted.
Sound is often a strange problem.
Just ilke with railways, the originated noise can be perceived on different
distances and different heights quite differently. Ant I do not mention yet
the extra low frequent sound (between 0,5 Hz and 20 Hz).
It has to do with the direction of the wind, the wind force, and the different
air layers.
To that, the
profile of the landscape plays an important role.
The wind changes from laminair flowing into turbulency, and than again in
laminair flow, etc. That is one of the reasons, that the calculations of those
*experts* are so often incorrect.
In any case it is advisable to erect those windmills far away from inhabitated
areas, in order to prevent noise pollution.
New is the verdict of a court
at Koblenz. A user of a windmill did not have to shut down his mill, despite
the fact that the windmill jammed and disrupted the reception of radio
broadcast.
In principle such
a mill has no effect on electro-technics fields; only the wings can disrupt
the radiowaves by their reflecting or muffling capacity and as such disrupt
the radiowaves in a pulsing way, which can be very annoying.
Even when certain reading lamps
are in the off position, there may be a great electrical field present.
This is mostly the case when a single wire is interrupted by a cable-switch.
It can be changed by turning the plug in the wall socket, but if you do not
know whether the phase is or isn't interrupted, I advise the use of a plug
with a built-in switch, like on the image next.
The advantage is, that both the poles are interrupted, and when the switch
is on 0, both poles are interrupted and no tension is on the wire, and so
no electrical field.
Of course, when the switch is on 1, there is an electrical- as well as a magnetic
field on the cable.
