Agenda - 02-28-2011 - C.1 - Laserfiche WebLink

Browse Search

270 or utility rooms- it would be space occupied by people working in the structure. Page 3 -44 and page 4 -18 are examples of where this specification occurs. Note that the height limitations that change with additional setback could be used as a maximum height such that either a (for example) 3 story limit _OR_ the maximum height based on setback would be the height limit for the building. An the of this setback based number is found at the top of page 6 -2. 1 would also add in (not sure where) than any building whose height exceeds the apparatus or ladder height restrictions of the fire departments which would respond to a structure fire would be required to be sprinklered. 22. There are various metal vapor lights, the most common being Mercury and Sodium vapor. It would be nice to know why Mercury is being singled out. In particular, is it the presence of Mercury (i.e. environmental) or is it the use of a specific type of fixture such as the yard lights utilities sell that is the concern. If the concern is environmental, then would it not also apply to ail fluorescent lights which use mercury? 23. We have incandescent, metal vapor, fluorescent (which is mercury and a phosphorous), and LED. Each has a different lumens per watt rating. If light is being regulated, lumens should be the standard. Also, be aware that any light with a reflector will put out more light in a certain direction than a light with no reflector. As such, lumens is still a weak measure of light output but it is what is on the packaging for all lights and is easier to work with than getting into the amount of light energy per unit area type measurements (candies). As a rule of thumb, incandescent runs 5 to 30 lumens /watt, and LEDs run 60 to 110 lumens /watt. 24. The limits under section (c) "General Operations" and (e) "Use of Accessory Structures" severely limit what a home 25. Somewhere in the Standards for Residential Uses or Development Standards there should be a section that specifies minimum residential driveway sizes of 12 feet wide by 14 feet vertical clearance (already stated in 7.8.5 (B) (15) on page 7 -32) for fire apparatus. This is the cleared width of the driveway, not the width of gravel or paving. 26. The travel -way width for Class B with 2 lots should be specified as 12 feet of cleared space, no standard for width of gravel or hard surface. 27. Under (5) (b): 16 feet should be 18 feet so that a passenger car can be passed by fire apparatus. For Class B roads with 3 or more lots, there should be an area 20 feet wide by 50 feet long every 1500 feed to that fire apparatus can pass each other. 28. On (1), remove the word "incandescent" since LED lights are now often used for holiday decorations. Low wattage is not defined, but a typical nightlight/big Christmas tree bulb is 7 watts so you could say any wattage under 10 watts. It would make more sense to use a lumen rating, such as less than 150 lumens. On (J), first off this should be a lumen limit, not watts. As the limit reads, this looks like a total lumens for any given motion activated switch. The lumens looks like it was derived from two incandescent 75 watt bulbs, probably flood lights. Note that if this is the case, the maxim lumens should be 2400. There are many motion activated systems where a sensor can turn on multiple light fixtures. So I would re -word this to have a 2400 lumen limit per light fixture controlled by the sensor. Finally, on this max lumens per fixture, there are standard outdoor floodlight fixtures that take 3 bulbs. For those fixtures, a reasonable max lumens would be around 3600. You could also add a limit of no one bulb can exceed a rating of 2100 lumens (a 120 watt equivalent) if the intent is to avoid the larger single bulb fixtures -- Section 6.11.3. 29. (A) This is where a definition of "mercury vapor luminaries" is needed. As written, this could mean that any standard fluorescent or compact fluorescent light could not