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H07 Power Load Survey
- 2. UNCLASSIFIED UNCLASSIFIED ACTION: Perform a power load survey CONDITIONS: Given a classroom an field environment, an understanding of electrical theory, regulatory guidance, and applicable personal protective equipment STANDARD: Perform a load survey applying theory, regulatory guidance, and principles of electrical design.
- 3. UNCLASSIFIED UNCLASSIFIED • Safety Requirements: None • Risk Assessment Level: Low • Environmental Considerations: None • Evaluation: Students will be evaluated on this block of instruction during the Electrical Systems Design Examination 4. Students must receive a score of 80 percent or above to receive a GO.
- 4. UNCLASSIFIED UNCLASSIFIED EM385-1-1 NFPA 70 NFPA 70E Safety and Health Requirements NEC 2017 Standard for Electrical Safety in the Workplace
- 5. UNCLASSIFIED UNCLASSIFIED What is it and what is it used for? 1. It’s an analysis of power requirements, and a vital step in providing electrical power support. The recommended power source is determined based on the load survey. 3. It determines the required level of reliability and identifies any special power demands or problems. A thorough load survey must be completed before installing a power plant or designing a distribution system. 2. Personnel conducting an Infrastructure Recon conduct the load survey to determine the supported power and distribution requirements of a unit.
- 6. UNCLASSIFIED UNCLASSIFIED Types of load surveys: 1. New Construction 2. Disaster Relief 3. Circuit Upgrade 4. Field Exercises
- 7. UNCLASSIFIED UNCLASSIFIED Determine Building or Site Load 1. Calculate the loads 2. Generator Sizing -single phase/three phase -prime/standby/continuous -voltage and frequency -altitude and temperature 3. Distribution Equipment and Material Requirements -organic or non-organic -cables, panels, etc 4. Load Balancing 5. Tie in location
- 8. UNCLASSIFIED UNCLASSIFIED Acquire electrical data -electrical plans -equipment specifications -on site visual inspections Determine the total connected load Calculate the demand load
- 9. UNCLASSIFIED UNCLASSIFIED 1. General lighting 2. Receptacles 3. Motors 4. Major appliances
- 10. UNCLASSIFIED UNCLASSIFIED You are currently TCS’d to Camp Arifjan, Kuwait with your local BEB. A mission has come down to deploy your unit to Ramadi, Iraq in order to win the hearts and minds of the local population. During the PDSS, three local buildings have been identified as hard stand structures that will be occupied during this mission. These will be used as a barracks, TOC and DFAC. They already have local electrical panels, wiring and equipment installed in them that will be used, but the local power is very unreliable and will not be used. The BC doesn’t want to install anything new if possible since this will be a short term mission. Organic electrical equipment that will be used in these buildings, along with existing installed local equipment have already been identified during the PDSS. Perform a load assessment of these buildings. How will you power these buildings- what size/type generator and distributions system will you use? Where will it/they be located? Take into account voltage drop and load balancing. Design a system in AutoDISE to accomplish this.
- 11. UNCLASSIFIED UNCLASSIFIED Kitchen CUOPS Sleeping Area S2 S1/3/4 Conference Room 10m 7m 7m 7m 24m 5m 21m 20m 24m Dining Area10m 7m 200A Panel Box 100A Panel Box Panel Box 60A Panel Box 50m 50m 75m
- 12. UNCLASSIFIED UNCLASSIFIED Dining Area -50ea florescent lights w/ 1.2A ballasts -10ea duplex outlets on each long wall and 4ea outlets on each short wall -1ea split unit AC (model PU-2.5VAKD.TD) connected to each wall outlet on the long walls Kitchen -18ea florescent lights w/ 1.2A ballasts -3ea ovens and stove combo, each on dedicated circuits -3ea vent hoods each on dedicated circuits; 230V @ 8A -1ea mixer -3ea duplex outlets on each of the side walls -1ea split unit AC (model PU-2.5VAKD.TD) connected to each wall outlet on the side walls -3ea duplex outlets on each of the other two walls
- 13. UNCLASSIFIED UNCLASSIFIED Sleeping Area -80ea florescent lights w/ 1.1A ballasts -10ea duplex outlets on each wall -1ea split unit AC (model PU-2VAKD.TD) connected to each wall outlet on two of the side walls S1/3/4 -12ea florescent lights w/ 1.1A ballasts -1ea duplex outlet on each wall that has doors; 4ea duplex outlets on each of the other two walls -1ea split unit AC (model PU-2VAKD.TD) connected to each wall outlet on two of the side walls -2ea laserjet printers @120V 8A -1ea coffee pot @ 120V 10a -2ea CPOFs -10ea laptops, dual voltage
- 14. UNCLASSIFIED UNCLASSIFIED S2 -8ea florescent lights w/ 1.1A ballasts -1ea duplex outlet on each wall that has doors; 4ea duplex outlets on the other wall -2ea split unit Acs (model PU-2VAKD.TD) connected to two wall outlets -1ea server rack, 120v @13.5A -6ea laptops, dual voltage CUOPS -8ea florescent lights w/ 1.1A ballasts -1ea duplex outlet on each wall that has doors; 4ea duplex outlets on each of the other three walls -2ea split unit ACs (model PU-2VAKD.TD) connected to two wall outlets -2ea CPOFs, dual voltage -6ea laptops, dual voltage -1ea radio w/ power amp 120V @ 6.5A -2ea 60” monitors, dual voltage @ 4A Conference Room -6ea florescent lights w/ 1.1A ballasts -1ea duplex outlet on each wall that has doors; 2ea duplex outlets on each of the other three walls -2ea split unit ACs (model PU-2VAKD.TD) connected to two wall outlets -1ea 60” monitors, dual voltage @ 4A