Wire size for distance
rat423
16 years ago
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Ron Natalie
16 years agoRelated Discussions
Espaliered manchurian apricot, sizing and distance for polinatio?
Comments (1)Bump?...See MoreVentilation Qs - exterior distance, duct size, etc
Comments (5)First, hood size should be selected to assure capture of the rising effluent, which expands as it rises at about 22 degrees half angle from the entire hot pan surface. While an induction surface is relatively cold, the effluent you are trying to collect comes primarily from the hot pan. So a gas surface just adds additional rising heat because some of the heat generated misses the pan. Second, choose a cfm that for the hood design selected assures containment. This is vastly easier said than done, but essentially you want the velocity of the air entering the baffles times the area of the baffle portion to be at least that of the rising effluent, about 3 feet per second. Even better would be 3 ft/s at the hood aperture, particularly if the aperture is a flat surface with a mesh filter. Or, you can guess and say that for serious cooking you will probably want at least 600 actual cfm. Note that this is the cfm achieved when all pressure losses are accounted for on the fan curve (cfm vs. pressure loss). Given baffles, duct transitions, negative house pressure without good make-up air, etc., you may need a 900 cfm rated fan to actually get 600 cfm. Next, size the duct so that the 600 cfm that is being extracted from the house has enough velocity to minimize particle and vapor deposition on the duct walls. This is at least 500 feet per minute for warm ducts, and at least 1000 fpm if the duct passes through a cold attic during part of the year. kas...See MoreViewing distance vs tv size
Comments (3)The older I get, the less I can read on the screen, so will soon have to resort to wearing glasses just to watch TV. Will the TV be watched from varying distances? Is the room 17' wide or long, or is that maybe the distance to see it from the kitchen or something? I'd go with what was the suggested size (or maybe a little bigger) for the majority of the viewers....See Moreelectrical wireing size
Comments (2)Depends on how many of them you want to run at one time and what they all are. I'd be inclined to run 60A. You'll need to run wet rated conductors THWN of size 6. You'll need four. If this shop is a separate structure, you'll need a grounding structure there. Be sure to see the subpanel FAQ at the top of the forum....See Morerat423
16 years agomike13
16 years agoRon Natalie
16 years agorat423
16 years agomike13
16 years agorat423
16 years agomike13
16 years agorat423
16 years agoJeff Martz
3 years agoJeff Martz
3 years agoSeabornman
3 years ago
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