Improvements to Parallel Cables and Circuit Derating in the Cable Size Calculator
|
Hi Reader I am just letting you know. I noticed some confusion between the parameters:
So I made a few changes to the Cable Size Calculator to make it more intuitive. 1. Updated parameter names for "Number of Parallel Cables" under Cable Type and the "Number of Cables" under Installation. 2. Limited maximum "Number of parallel cables". It is now limited to what the installation supports. For example, "Bunched with a catenary wire" supports only 6 cables. 2. Minimum limit for "Number of cables" under Installation. This is to ensure that all parallel cables are considered in the installation. For example, if 4 parallel cables are selected, then at least 4 "Cables per enclosure" must be chosen under Installation. 3. New error message. When the "Number of cables" under Installation is less than the "Number of Parallel Cables". 4. New warning message When the "Number of cables" under Installation is more than the "Number of Parallel Cables". 5. Hidden parameters that are not applicable The parameters "Number of parallel cables" and "Number of cables" under Installation are now hidden where multiple cables are not supported. 6. Fixed missing circuit numbers I added the missing numbers for "Cables per enclosure" under Installation. The previous version did not show numbers 11, 13, 15, 17 and 19. 7. Update help text. I updated the help text for "Number of Parallel Cables" under Cable Type, and "Number of Cables" under Installation. Click here to try. Please let me know if you have any questions or suggestions. I appreciate your feedback. Adam van Staden This information does not constitute legal, professional or commercial advice. JCalc Pty Ltd gives no guarantees, undertakings or warranties in this regard, and does not accept any legal liability or responsibility for the content or the accuracy of the information so provided, or, for any loss or damage caused arising directly or indirectly in connection with reliance on the use of such information. |
Subscribe to jCalc updates
One email per month.
Hi Reader Just letting you know. I have changed the mobile layout of the Maximum Demand Calculator. See the images below. I also made a few improvements and fixed some defects. Improvements I added kW ratings. You now have A, Watt and kW. I added 3-phase loads to Blocks of Living Units. I improved the descriptions for the default loads when you open the calculator the first time. I updated the example in the content below the calculator with more load groups and more detailed calculation...
Hi Reader I am just letting you know. I added electrode images to the Arc Flash Calculator. Plus a few other improvements. 1. Electrode images 2. Model limit validations I added the IEEE-1584 model limitations to the field validations, including voltage, conductor gap and enclosure size. For example: 2. Simplified equipment types I reduced and simplified the list of typical equipment types. They are used to prefill the working distance, conductor gap and enclosure dimensions with typical...
Hi Reader I am just letting you know. I made a few small improvements and fixed defects on the Cable Size Calculator. Improvements I added a confirmation window for the reset button. I added a warning for the user to raise the ambient temperature for cables installed in ceilings. I added step-by-step calculations for the phase and earth fault at load. I improved the step-by-step calculations for maximum earth loop distance. I added new content to explain maximum loop distance calculations. I...