Sufi Shah Hamid Jalali
4 awesome technical articles
B.Sc. in Electrical Engineering. Designer of websites. Currently working as Electrical Engineer at Aga Khan Foundation, Afghanistan. Likes to write and share knowledge of Electrical Engineering. Knows Primavera P6, Graphics, Professional AutoCAD and Project Management.
Energy and Power
Electrical Design Project of a Three Bed Room House (Part 2)
Continued from 1st part: Electrical Design Project of a Three Bed Room House (Part 1) All new domestic dwellings, including conversions, must either have: A fire detection and fire alarm system in accordance with the relevant recommendations of British Standard… Read more
Mar 31, 2014 | By Sufi Shah Hamid Jalali
Energy and Power
Electrical Design Project of a Three Bed Room House (1)
Electrical design is not an easy task. It requires a lot of expertise. Detailed study is needed prior to installation work. The engineer must consider quality and any specific requirements together with price. Different options are to be examined. Choice… Read more
Mar 21, 2014 | By Sufi Shah Hamid Jalali
Energy Efficiency
Electric Power Quality and Lighting (part 2)
Continued from first part: Electric Power Quality and Lighting (part 1) Power factor is a measure of how effectively a device converts input current and voltage into useful electric power. Mathematically it is defined as follows: Where P is active… Read more
May 29, 2012 | By Sufi Shah Hamid Jalali
Energy Efficiency
Electric Power Quality and Lighting (part 1)
Concerns about the effects of lighting products on power distribution systems have focused attention on power quality. Poor power quality can waste energy and the capacity of an electrical system; it can harm both the electrical distribution system and devices… Read more
May 26, 2012 | By Sufi Shah Hamid Jalali