# 10 Perfect Chapter 3 Review Electrical Wiring Residential Scribd Pictures

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10 Perfect Chapter 3 Review Electrical Wiring Residential Scribd Pictures - Two 12/2 and two 14/2 nonmetallic-sheathed awg cables enter a box. Each cable has an device grounding conductor. The 12 awg conductors are related to a receptacle. Of the 14 awg conductors are related to a toggle switch. The alternative 14 awg conductors are spliced together due to the fact that they function a transfer loop. The container includes two cable clamps. Calculate the minimum cubic-inch volume required for the container. Answer: floor wire----#12 (2.25cu. In.)??1 x 2.25 ----------2.25 cu. In. Conductors: 2—#12/2 ---- 2 x 2 x 2.25 ------------------------------nine.00 cu. In. 2—#14/2 ---- 2 x 2 x 2.00 ------------------------------eight.00 cu. In. Devices: 1—toggle switch –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 quantity and length of conductors as in questions 28, however the usage of electrical metal tubing, calculate the minimum cubic-inch volume required for the container. There may be no separate gadget grounding conductors, nor will there be any clamps in the field. Answer: floor cord—ought to parent on one floor cord because of the neighborhood code requirement of all conduit structures requiring a floor twine. The solutions can be the equal due to the fact the electrical metallic tubing will require using steel connectors that ought to enter the box, you would depend them as fittings, which means that regardless of how many fittings are coming into the field the you may parent it at ( 1-instances the cubic inch of the most important conductor that enters the field. To allow for ok conductor length at electrical outlet and device boxed to make up connections, three hundred.14 requires that no longer less than [ 3 in.(75 mm). 6 in. (150 mm), 9 in. (225 mm)] of conductor period be provided. This length is measured from in which the conductor emerges from the cable or raceway to the end of the conductor. For box openings having any measurement much less than 8in. (200mm), the minimum period of conductor measured form the container establishing within the wall to the quit of the conductor is [ three in. (Seventy five mm), 6 in. (A hundred and fifty mm), nine in. (225 mm). Circle the perfect solution. Answer web page 21 parent 2-2 while wiring a house, what need to be considered while installing wall containers on both facets of a common partition that separates the storage and a habitable room? The fireplace score of the walls have to be maintained because of this that containers won't be hooked up “back to again” or inside the same air void. A separation of 24 inches horizontal ought to be maintained until the bins are indexed as being hearth resistant. The bins which are at the hearth rated wall have to be well protected or encased with a hearth puddy. Does the nec® allow metal raceways for use with nonmetallic containers? Yes _____x______ no__________ nec®______nec® 314.3 (exception) –previded that each one metal raceways or cables getting into the box are bonded together to maintanin the integrity of the grounding course to different device in the installation. P. 33.