Good question. The rest of the story (as Paul Harvey would say), is that the allowance in 8.4.2 was added to address an industry practice done for years whereby sidewalls were used to protect beneath doors. The problem with this practice is that the listing requires the sprinkler to be within a specified distance below the ceiling and located within a specified distance of a wall (neither were typically satisfied when installed next to a door). Since the TC explicitly identified it as an allowance for standard sidewalls (with a reasonable expectation that doors would not be wider than what could be covered by a sprinkler on each side), I'd stick with being excessively literal. I also suspect one would have a difficult time arguing equivalency for an EC on one side when compared to standard sprinklers on both sides just one activation times alone. On the other hand, the likely consequences for such installations seems fairly insignificant so doesn't seem like something to keep one awake at night. It's like spending the entire time available for an acceptance test on looking for a single drip from a hydro that lost no pressure and ignoring EVERYTHING else that should be checked.
Roland On Sep 15, 2009, at 9:40 AM, Ed Kramer wrote: > I need a reality check: Section 8.4.2 (07) addresses sidewall > sprinklers > and states sidewall sprinks can be installed to protect areas > beneath OH > doors. > > > > Section 8.4.3 addresses extended coverage sprinklers and doesn't > mention OH > doors. > > > > I interpret the above to mean that standard coverage sidewall > sprinks can be > installed beneath OH doors, but extended coverage sidewall sprinks > can't. > Correct? > > > > Ed Kramer > > Littleton, CO > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
