Posts

Electrical calculations for cables, diversity, voltage drop, etc. (part 4 of 4)

Image
                 Since this is a theoretical situation, the exact pathways for cables, the location of the consumer unit and correction factors are unknown. And so, again, I took liberties in choosing data for calculations. The assumptions made in the following calculations are as follows: Ca = 1 (ambient temperature for all circuits is 30 degrees) Cg = 1 (there is no grouping in installation) Ci = 1 (installed as per Table F6 O.S.G.) Cf = 1 (it is a new installation and BS 3036 will not be used) Reference Method used is C The hob, oven and hood are installed on the same circuit with an additional socket. Socket-outlet ring/radial circuits will be constructed as per Appendix H (O.S.G.)  Total length of the circuits are taken as follows: Lights - 20 m Cooker - 10 m Heating - 15 m Shower - 20 m                Following these assumptions the results of the calculations are:
Post a Comment
Read more

Setting up the rest of the electrical accessories (part 3 of 4)

Image
                     After the luminaires are set up to the required lux levels, it's time to export all the information in a .dwg file so I can set up the switches, sockets and cables in Autocad. After turning off most of the layers introduced by Dialux, the available space within the drawing increases thus reducing the possibility of mistakes.                After finishing the setup for the accessories and setting up the Layouts in the needed way I could plot the following:                     Lighting wires are not connected to the switches (they are just pointing towards the relevant switch/switches) as there is more than one option for choosing the pathway of the electrical conductors.
Post a Comment
Read more

Building the rooms in Dialux (part 2 of 4)

Image
                 Now that I got a solid CAD foundation to build on, the next step is importing the .dwg in Dialux. (Right about now would be a bad time to find out about the problems in compatibility between the versions 4 and 9 in Dialux, and also about the fact that importing a new version of .dwg in Dialux 4 is not going to work out as great as you had hoped.)                   I chose a floor to ceiling height as 2,4 m, as it is the standard (2,2 m is considered the minimum, while 2,6 m is considered to be good).                    I chose luminaires of low output on purpose so that I could play around with the arrangement and try different combinations to reach the lux target. I have also changed the purpose of the rooms to suit the following targets: Kitchen - 250 lx Living room - 300 lx Bathrooms - 220 lx (downstairs)...
Post a Comment
Read more

Starting with a floor plan (part 1 of 4)

Image
               In order to make sure I worked on a realistic architectural draft, I imported in Autocad the image below, belonging to one of the most common layouts for a 3 bedroom house.                Now, usually, with this kind of drawing, things are not going to be 100% precise, even with scaling and changing bits and bobs.                     Needless to say, I took some liberties.                 After I set up the scale and finished drawing over a transparent version of the image above I ended up with the images as seen below.                     And, finally, the end product, with the background image hidden in a separate layer.               
Post a Comment
Read more