CE is a self-certification that requires no 3rd party testing. In other words, if you think your product meets a standard and take the time to write a letter stating such, then you are CE certified. There are companies who you can pay to give you the letter, but it is easy to go on-line, learn the CE mark requirements and DIY.
________________________________ From: Mick Abraham <m...@abrahamsolar.com> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Sent: Tue, September 14, 2010 12:17:34 PM Subject: Re: [RE-wrenches] Delta LAs Citel products do have a listing mark but this is European style CE, not American style UL/ETL. Citel is reputedly working on American certification but one would be advised to not hold one's breath. The Citel products which mount to a DIN rail have an LED indicator which goes dark once the surge elements have been sacrificed. Also some of their units have an auxiliary switch which can remotely indicate a blown condition. This is in the form of dry contacts..a normally open and a normally closed one, so various indicator circuits can be designed around that. The contacts have a low amp AC rating and also a (lower amp) DC rating but I do not remember the numbers at present. Jolliness, Mick Abraham, Proprietor www.abrahamsolar.com Voice: 970-731-4675 On Tue, Sep 14, 2010 at 12:43 PM, R Ray Walters <r...@solarray.com> wrote: You could buy several ground rods for the cost of one Delta. >Ground Impedance is the real issue. Both the Delta and the Polyphasor need a >good ground to work. > >While I haven't seen much of a correlation between Deltas and reduced >lightning >damage, (lots of system damage with and without) >I have found that well grounded systems (tied to a steel cased well) have >never >had a problem, even with direct strikes to a wind turbine (did lose the $40 >turbine rectifier, but nothing else) > > >I now own a clamp-on ground impedance tester, and the results were miserable. >Some electrodes were over 800 ohms to ground! (code requires under 25 ohms) >I'd spend more time and money reducing ground impedance, and then if it makes >you feel good inside, throw the little "lightning faeries" in, if the AHJ >isn't >looking....... > > >If its really lightning country, and a really expensive off grid system, I use >Polyphasor, but they have their own issues. (very expensive, no UL listing, >loose internal connections, nuisance tripping, need a large J-box to mount >them >inside, etc.) >I haven't tried the Citel stuff, but it looks to be listed, and mounts on a >DIN >rail. After installing a couple hundred Deltas, I'd try something else at this >point. > > > > >R. Walters >r...@solarray.com >Solar Engineer > > > > > > > >On Sep 14, 2010, at 10:22 AM, Kristopher Schmid wrote: > >My thought here is that nothing will protect the equipment from a direct >strike, >but a near strike that may induce a significant surge may be absorbed by the >LA >and protect the equipment. I like the feedback so far. It would not break my >heart to stop using them altogether.:-} >> >>Kris >>Legacy Solar >>864 Clam Falls Trail >>Frederic, WI 54837 >>715-653-4295 >>sol...@legacysolar.com >>www.legacysolar.com >>-----Original Message----- >>>From: re-wrenches-boun...@lists.re-wrenches.org >>>[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of August Goers >>>Sent: Tuesday, September 14, 2010 10:39 AM >>>To: RE-wrenches >>>Subject: Re: [RE-wrenches] Delta LAs >>> >>> >>>All - >>> >>>I guess my thought is a little off topic, but are lightning arrestors even >>>worth >>>using at all? My logic has always been that if lightning does indeed strike >>>that >>>it's likely going to blow the arrestor and and inverter. We don't have much >>>of a >>>lightning issue issue in the Bay Area so I don't have any direct experience. >>> >>>Best, >>> >>>August >>> >>> >>>On Tue, Sep 14, 2010 at 6:29 AM, Kristopher Schmid <sol...@legacysolar.com> >>>wrote: >>> >>>It is quite ironic that just a week after I posted a question to the group >>>>on testing the integrity of lightning arrestors, I had one apparently faulty >>>>out of the box. The manifest of this was interesting: when the AC LA >>>>(LA302R) was connected in parallel on the AC input to a SB3000 inverter, >>>>there was 125vac neutral to L1, 125vac neutral to L2, and 1Vac L1 to L2. >>>>SMA tech support suggested the LA as the issue and sure enough, it was. >>>>Attempting to test good and faulty arrestors with an ohmmeter gave the same >>>>result - off scale open. >>>> >>>>Any thoughts or comments from the group? >>>> >>>>Kris Schmid >>>> >>>>Legacy Solar >>>>864 Clam Falls Trail >>>>Frederic, WI 54837 >>>>715-653-4295 >>>>sol...@legacysolar.com >>>>www.legacysolar.com >>>> >>>>_______________________________________________ >>>>List sponsored by Home Power magazine >>>> >>>>List Address: RE-wrenches@lists.re-wrenches.org >>>> >>>>Options & settings: >>>>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>>List-Archive: >>>http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>> >>>>List rules & etiquette: >>>>www.re-wrenches.org/etiquette.htm >>>> >>>>Check out participant bios: >>>>www.members.re-wrenches.org >>>> >>>> >>> >>> >>>-- >>>August Goers >>>VP, Engineering >>> >>>Luminalt Energy Corporation >>>1320 Potrero Avenue >>>San Francisco, CA 94110 >>>O: 415.641.4000 >>>M: 415.559.1525 >>>aug...@luminalt.com >>>_______________________________________________ >>List sponsored by Home Power magazine >> >>List Address: RE-wrenches@lists.re-wrenches.org >> >>Options & settings: >>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >>List-Archive: >http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >>List rules & etiquette: >>www.re-wrenches.org/etiquette.htm >> >>Check out participant bios: >>www.members.re-wrenches.org >> >> > >_______________________________________________ >List sponsored by Home Power magazine > >List Address: RE-wrenches@lists.re-wrenches.org > >Options & settings: >http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > >List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > >List rules & etiquette: >www.re-wrenches.org/etiquette.htm > >Check out participant bios: >www.members.re-wrenches.org > > >
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