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                                           Task Analysis

 
Thames Solar Electric Kenneth Thames
PV Installer Task Analysis  
Working Safely with Photovoltaics Located in Chapter #
1.1 Maintain safe work habits Chapter 1 Safety/OSHA
1.2 Demonstrate safe use of required tools/equipment Chapter 1 Safety/OSHA
1.3 Demonstrate safe practices for personnel protection Chapter 1 Safety/OSHA
1.4 Demonstrate awareness of safety hazards Chapter 1 Safety/OSHA
1.5 Demonstrate proficiency in basic 1st aid/CPR Chapter 1 Safety/OSHA
1.6 Identify & implement appropriate codes, standards, Chapter 1 Safety/OSHA
  maintenance of PV systems and equipment Chapter 1 Safety/OSHA
1.7 Identify & implement appropriate codes, standards, Chapter 1 Safety/OSHA
   concerning worker & public safety Chapter 1 Safety/OSHA
1.8 Identify personal safety hazards associated with PV installs Chapter 1 Safety/OSHA
1.9 Identify environmental hazards associated with PV installs Chapter 1 Safety/OSHA
   
Conducting a Site Assessment  
2.1 Identify typical tools, equipment required for site surveys for Chptr 4 & 6 & 17
  PV installs - demonstrate proficieny in use  
2.2 Establish suitable site for proper PV array Chapter 4 
2.3 establish suitable location for inverter, control, batteries, etc Chapter 4 
2.4 Diagram layouts/locations for array w/ all features One-Lines Chapter 4  & 18
2.5 Identify site specific safety hazards Chapter 1 Safety/OSHA
2.6 Obatin, interpret solar radiation, temp, expectations of system Chptr 4 & Chptr 6 
2.7 Quantify customer electrical load, energy use, meter readings Chptr 4 &  6 & 17 
2.8 Estimate/measure peak load demand - battery based system Chptr 4 & 17
2.9 Determine requirements for additioanl subpanels, utility Chptr 4 & 17
2.10 Identify use of energy efficient equipment Chptr 4
   
Selecting a system Design  
3.1 Idenitfy systems design on customer needs, site conditions Chptr 4 & 17
3.2 estimate sizing requirements based on customer load Chptr 17
3.3 Identify major components & balance of system equipment Chptr 6
3.4 estimate time, materials, equipment required for install Chptr 6
   
Adapting the Mechical Design  
4.1 Identify mechanical design, equipment used Chptr 5 & Chptr 6
4.2 Identify appropreiate module/array layout, orientation Chptr 5 
  mounting method  
   
Adapting the Electrical Design  
5.1 Determine design currents for part of electircal circuit Chptr 2 & 7
5.2 Select appropriate conductor types, ratings for each circuit Chptr 12
5.3 Determine derated ampacity of system conductors Chptr 7
5.4 Determine appropriate size, ratings of overcurrent/disconnects Chptr 8 & Chptr 9
5.5 Determine appropriate size, ratings for grounding Chptr 10
5.6 Detrmine appropreiate size, rating Chptr 2 & 3
5.7 Verify that array operating voltage range w/I acceptable limits Chptr 6 & 17
5.8 Select utility interconnection point w/ overcurrents/ disconnects Chptr 14 & 15
   
Installing Subsystems & Components at the Site  
6.1 Create One-Line Drawing for installation equipment Chptr 3 & 17 & 18
6.2 Implement personnel safety/environmental measures Chptr 1
6.3 Visually inspect & quick test PV modules Chptr 5 Installing Array
6.4 Assemble modules, racking for that manufacturer Chptr 5 Installing Array
6.5 Install array interconnect wiring, measure to disable array if … Chptr 11 & Hands-On class
6.6 Complete final assesbly, weather sealing, etc Chptr 5 Installing Array
6.7 Install required Labels on equipment Chptr 16
Thames Solar Electric Kenneth Thames
PV Installer Task Analysis page 2
   
Installing Subsystems & Components at the Site - cont'  
6.8 Label, install electrical wiring, voltage/phase/polarity Chptr 12 & 16
6.9 Verify continuity/measure impedance of grounsing system Chptr 10
6.10 Program, configure inverters, controls for set points Chptr 3
   
Performing a system Checkout & Inspection  
7.1 Visually inspect entire installation Chptr 19
7.2 check system mechanica installation for integrity, sealing Chptr 19
7.3 Check electrical installation for proper practices Chptr 19
7.4 Activate system & verify overall system functionality Chptr 19
7.5 Demonstrate procedures for connecting/disconnection system Chptr 19
7.6 Identify & verify all required markings/labels on system/equip. Chptr 19
7.7 Identify & explain all safety issues associated w/ maintenance Chptr 1 & Chptr 11
7.8 Identify what documentation is required for owner of install Chptr 19
   
Maintaing & Troubleshooting a System  
8.1 Identify tools & equipment required for maintining/troubleshoot Chptr 19
8.2 Identify maintenance needs/service procedures Chptr 19
8.3 Measure system performance Chptr 19
8.4 Perform diagnostic procedures/interpret results Chptr 19
8.5 Identify performance & safety issues/corrective measures Chptr 19
8.6 Verify & demonstrate functionality/performance of system Chptr 19
8.7 Compile/maintain records of system, performance, maintenance Chptr 19

 
1.      OSHA & Safety – 1.1 thru 1.9, 2.5, 6.2, 7.7  
2.      Electric Basics – needed to understand PV basics  
3.      Photovoltaic Basics – needed to understand designing and installing
4.      Site Survey – 2.1, 2.2 thru 3.1, 4.2, 5.6  
5.      Installing the Array – 4.1, 4.2, 6.3, 6.4, 6.6  
6.      Grid-Tied Only – 2.1, 2.6, 2.7, 3.3 thru 4.1, 5.7  
7.      Conductor Ampacity – 5.1, 5.3  
8.      Overcurrent Protection – 5.4  
9.      Disconnects – 5.4  
10.  Grounding – 5.5, 6.9  
11.  Wiring the array – 6.5, 7.7  
12.  Wiring from Array to Inverter – 5.2, 6.8  
13.  Inverters – equipment understanding  
14.  Load Side Point of Connection – 5.8  
15.  Line Side Point of Connection –  
16.  Labeling – 6.7  
17.  Battery Based systems – 2.1, 2.7, 2.8, 2.9, 3.1, 3.2, 5.7, 6.1
18.  Permitting – 2.4, 6.1  
19.  Commissioning – 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.8, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7
20.  Mega Watt Systems – for further reference  

 

 

 

 

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