New Major Projects - Electrical Design Input

What software is recommended for load studies - Dapper, Captor or Amtech etc.? What would be the recommended running voltage drops from the point of
supply to the point of utilisation, for general equipment such as motors, lighting and small power etc. Apart from special equipment requiring special consideration.
Anyone have recommendations?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.