Electrical Gutter Size Calculator

Sizing a gutter for the proper fit is relatively easy.

Electrical gutter size calculator.

Calculate the area of a roof to work out how much guttering is required. 5 inch 5 520 square feet. Gutter wireway will then extend over four 200 amp unit meters and two 400 amp unit meters. Provides quick and easy results for the conduit fill percent per nec guidelines.

Of its interior cross sectional area 366 22 a b this is for both sheet metal and nonmetallic gutters. 6 inch 7 960 square feet. 1 1600 amp main disconnect with 4 parallel runs of 4 600 mcm and 1 4 0 thhn cu conductors in 3 5 conduit. Table 1 wireway size cross section in2 max.

We are allowed by code to fill a gutter to 20. Sizing calculator wireway selection 4 x4 6 x6 8 x8 4 o uses splices and taps splices and taps are permitted within a wireway provided they are accessible. Need help sizing a gutter wireway for building service with the following. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

So for a roof that is 5 m long with a height of 4 m and the roof width is 8 m which makes the half roof width 4m we can calculate the effective roof area like this. Do you need to calculate a box size given the wires that are going into the box. Construction monkey has the perfect calculator for you. We recommend using this calculator as a basic tool to begin determining the requirements for your drainage system however all information should be verified by.

5 inch 5 520 square feet. Boxes containing conductors of 4 awg or larger under 600v are calculated from the sizes and numbers of raceways see figure 1. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Conduits will leave top of disconnect and enter bottom of gutter.

The conductors including splices and taps shall not fill the wireway to more than 75 percent of its area at the point of a splice or tap. Then use the chart below to see what size gutter you need. Conduit fill calculator conduit fill is the percent of area inside the conduit taken up by the cable s. Just answer the questions below and we will do the box fill calculations for you based on article 314 16 of the national electrical code.

Calculations are different for pull and junction boxes. If a roof s various drainage areas call for different size gutters go for the biggest one k style. When determining the minimum size box for conductors 18 awg through 6 awg the sizes and numbers of conductors are needed to calculate the minimum size box. I get a lot of calls to make sure that the gutter that they are using is up to code.

Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.