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June 14th 15, 03:06 AM
posted to rec.radio.amateur.antenna
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Battery question???
On 6/13/2015 9:28 PM, Jeff Liebermann wrote:
On Sat, 13 Jun 2015 20:26:02 -0400, rickman wrote: What spec would that be? Do brand new units work to this nebulous spec? The performance specs are in UL 217. http://ul.com/code-authorities/fire-code/smoke-alarms-and-smoke-detectors/ I couldn't find a current copy online. The best I can do is a 22 year old copy. Obviously, things have changed but it's still interesting reading. Section 38 starts the sensitivity testing section. ftp://law.resource.org/pub/us/cfr/ibr/006/ul.217.1993.pdf Installation requirements and testing are under NFPA 72. http://www.nfpa.org/codes-and-standards/document-information-pages?mode=code&code=72&tab=questions You should be able to read NPFA-72 for free. If you can't test it, then why swap one untested unit for another untested unit? Dunno. Exactly! -- Rick |
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