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electrical wiring residential answer key Flickering lights, high bills, damaged appliances, all be a sign of electrical problems on your home circuit 14 Creative Electrical Wiring Residential Answer Key Images

14 Creative Electrical Wiring Residential Answer Key Images

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Flickering Lights, High Bills, Damaged Appliances, All Be A Sign Of Electrical Problems On Your Home Circuit - Two 12/2 and two 14/2 nonmetallic-sheathed awg cables input a field. Every cable has an equipment grounding conductor. The 12 awg conductors are related to a receptacle. Two of the 14 awg conductors are related to a toggle transfer. The opposite two 14 awg conductors are spliced collectively due to the fact they function a switch loop. The box incorporates two cable clamps. Calculate the minimum cubic-inch volume required for the container. Solution: floor cord----#12 (2.25cu. In.)??1 x 2.25 ----------2.25 cu. In. Conductors: 2—#12/2 ---- 2 x 2 x 2.25 ------------------------------9.00 cu. In. 2—#14/2 ---- 2 x 2 x 2.00 ------------------------------8.00 cu. In. Devices: 1—toggle transfer –1 x 2 x 2.25 ------------------------four.50 cu. In. 1—receptacle –1 x 2 x 2.25 ----------------------------four.50 cu. In. Fittings (clamps) 2—cable clamps—1 x 2.25 ----------------------------2.25 cu. In. ------------------------------------------------------------- 31.50 cu. In. Using the equal number and size of conductors as in questions 28, however the usage of electric metal tubing, calculate the minimum cubic-inch quantity required for the box. There will be no separate gadget grounding conductors, nor will there be any clamps within the container. Solution: floor cord—have to determine on one ground wire due to the nearby code requirement of all conduit systems requiring a ground cord. The answers will be the equal due to the fact the electric steel tubing will require using metallic connectors that need to enter the box, you would remember them as fittings, which means that regardless of what number of fittings are getting into the container the you'll discern it at ( 1-times the cubic inch of the largest conductor that enters the field. To permit for ok conductor duration at electrical outlet and device boxed to make up connections, three hundred.14 calls for that not much less than [ 3 in.(75 mm). 6 in. (150 mm), 9 in. (225 mm)] of conductor duration be furnished. This duration is measured from wherein the conductor emerges from the cable or raceway to the cease of the conductor. For container openings having any measurement less than 8in. (200mm), the minimum length of conductor measured shape the container beginning within the wall to the end of the conductor is [ three in. (Seventy five mm), 6 in. (One hundred fifty mm), 9 in. (225 mm). Circle the precise solution. Solution page 21 parent 2-2 while wiring a residence, what have to be considered while installing wall boxes on each sides of a common partition that separates the garage and a habitable room? The fire rating of the partitions have to be maintained this means that that bins may not be set up “lower back to lower back” or in the same air void. A separation of 24 inches horizontal ought to be maintained unless the boxes are listed as being fireplace resistant. The packing containers that are on the fire rated wall need to be well protected or encased with a fireplace puddy. Does the nec® permit steel raceways for use with nonmetallic bins? Yes _____x______ no__________ nec®______nec® 314.3 (exception) –previded that every one steel raceways or cables getting into the field are bonded collectively to maintanin the integrity of the grounding route to different gadget within the set up. P. 33.