![]() The first step is to find the cubic-inch capacity of the box from Table 314.16(A). How many 14 AWG conductors can be added? The box contains no fittings or devices. For example, a 4-inch square metal box with a depth of 11/2 inches currently contains four 12 AWG conductors. If the new conductors are not the same size as the existing conductors, a volume calculation must be performed. If the new conductors are the same size as the existing conductors, find the maximum number in Table 314.16(A). Occasionally, boxes are already installed and additional conductors must be added. The minimum depth 4-inch square metal box is 2 1/8 inches (see Figure 2). The total volume required for four 10 AWG conductors and six 14 AWG conductors is 22 cubic inches (10 12). Since the volume required for each 14 AWG conductor is 2 cubic inches, the volume needed is 12 cubic inches (6 2). Therefore, the volume required for the 10 AWG conductors is 10 cubic inches (4 2.5). The volume required for each 10 AWG conductor is 2.5 cubic inches. To figure this out, first calculate the volume required for each set of conductors. For example, a box is needed for four 10 AWG conductors and six 14 AWG conductors, so what would be the minimum depth 4-inch square metal box that can be installed? The box will not contain any fittings of devices. When the box contains different size conductors, or the box is not listed in Table 314.16(A), a volume calculation must be performed. The volume of the box, as calculated in 314.16(A), must not be less than the fill calculation as calculated in 314.16(B). The volume allowances range from 1.5 cubic inches (24.6 cubic centimeters) for 18 AWG conductors to 5 cubic inches (81.9 cubic centimeters) for 6 AWG conductors (see Figure 1). The free space required for each conductor is given in cubic centimeters and cubic inches. The volume allowances required per conductor sizes 18 AWG through 6 AWG are listed in Table 314.16(B). This month, the discussion continues with box-fill calculations. Last month's Code In Focus concluded with 314.16(B)(1). Box-volume calculations are in 314.16(A), box-fill calculations are in 314.16(B), and requirements pertaining to conduit bodies enclosing 6 AWG conductors or smaller are in 314.16(C). Procedures for calculating maximum numbers and sizes of conductors (6 AWG and smaller) are in 314.16. Requirements pertaining to the installation and use of all boxes and conduit bodies used as outlet, device, junction or pull boxes are in Article 314 of the National Electrical Code. Please show us how your’e styling your LEMstudio dishes by tagging on Instagram.ARTICLE 314 C OUTLET, DEVICE, PULL AND JUNCTION BOXES CONDUIT BODIES FITTINGS AND MANHOLES I hope you enjoy the product as much as we have making it. If you are after something more bespoke or have any issues regarding the product please contact us via Etsy. ![]() This item is not dishwasher or food safe. To clean the item, use a damp cloth to wipe away any spillages or dirt, avoiding the cork base. There may be slight variations in the colour, as well as air bubbles in the material, each adding individuality and charm to the product. ![]() ![]() The tray is then finished with 4xcircular cork stickers at base to protect it’s contact surface.Įvery item is handmade and unique, therefore will not be identical to the image listing. It’s sealed to protect against stains and liquids as well as enhance the contrasting colours. The product is made from Jesmonite, a strong non-toxic water-based casting resin that is an ecofriendly alternative from plaster, concrete resin. If there’s also a particular colour from your home that you want to include in the plant pot, bespoke colours can be made to order, just put a comment in the box when you checkout. This handmade teal marble effect decorative tray is the perfect gift for a birthday or new home. ![]()
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