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DIYforFun

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Posts: 8
Reply with quote  #11 
One  other  question here, maybe someone  can answer?  If you  take a  solar panel like these(or  any kind  actually)  and  just lay them  out in the sun there is no electricity circulating through them right?  It has  no  where   to  go so theres   flow? once  you connect something to them  (thru the  Mc4  connectors  in this case) then the  current has  a path...  correct?

al

Rick H Parker

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Reply with quote  #12 
Check the panels for a production date code and decode it. Knowing when the panels where produced might help access your risk.
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Rick H Parker
Kansas, USA
Electronics Engineering Technologist
stmbtwle

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Reply with quote  #13 
Correct. There's no current, but there's still voltage. In a series array, possibly enough to kill.
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Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
Rick H Parker

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Reply with quote  #14 
Open circuit = no current. If the voltage is high enough and you come in contact with the Mc4  connector' wire metal core, your body can close the circuit and become the conductor.
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Rick H Parker
Kansas, USA
Electronics Engineering Technologist
DIYforFun

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Reply with quote  #15 
Thanks. I was  just thinking I have the  nice pile of black glass...... 2x4...maybe  good  for the  back of  solar collector...forget using them as  intended  completely!

al
Rick H Parker

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Reply with quote  #16 
Did you get the mounting rails with the panels?
AB1- Series Installation Manual download.

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Rick H Parker
Kansas, USA
Electronics Engineering Technologist
DIYforFun

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Posts: 8
Reply with quote  #17 
Unfortunately  no, but  a copy of  that instruction  manual did come  with them . At this point I  have   not purchased anything to   mount them  with.

al
colinmcc

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Posts: 149
Reply with quote  #18 
i just looked at the spec sheet, and have never seen the Temp. Coefficients expressed as per Kelvin rather than Degree Celsius on any other solar panel's spec. Had to go and look it up to remind myself that one Kelvin unit = one Degree Celsius. Probably knew that at uni 40+ years ago! ;-)

And, al, you say "forget using them as  intended  completely!"  in the spirit of the maker/recycling movement, give them a go as PV generators, a lot of energy was used to make then, so get some benefit back for the planet! ;-)
Rick H Parker

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Reply with quote  #19 
"Had to go and look it up to remind myself that one Kelvin unit = one Degree Celsius. Probably knew that at uni 40+ years ago! ;-)"

The scales are offset by 237.15

T(°C) = T(K) - 273.15

T(K) = T(°C) + 273.15

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Rick H Parker
Kansas, USA
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