Electrical Inspector Calculations Topics Practice Worksheets
Here is a list of Electrical Inspector calculation topics. You may want to set this index page as a shortcut on your desktop with a right click.
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These practice worksheets are intended to be used with a Texas Instruments® TI-30Xa calculator.
Ohms Watts Series Parallel Circuits AC Circuits
1 Ohms Watts Calculations EIRP
2 Ohms Watts Calculations EIRP
3 Ohms Watts Calculations EIRP
4 Ohms Watts Calculations EIRP
5 Ohms Watts Story Problems
6 Worksheet
7 Worksheet
8 Pythagorean Theorem
9 Trigonometry sin cos tan
10 Alternating Current Circuit Calculations
11 AC Circuit Story Problems 1Ø
12 Worksheet
13 Worksheet
14 AC Circuit Calculations E I R Xl Z
angle sin cos tan
15 AC 1Ø Power Calculations
16 AC 3Ø Power Calculations
17 AC 1Ø Horse Power
18 AC 3Ø Horse Power
19 AC Story Problems 3Ø
20 Worksheet
21 Worksheet
22 Series Circuit Story Problems
23 Worksheet
24 Worksheet
25 Parallel Circuit Story Problems
26 Worksheet
27 Worksheet
28 AC Circuit 3Ø Story Problems
29 Worksheet
30 Worksheet
Box Sizing Pull Boxes Conduit Fill Wireways Nipple Fill
31 Box Sizing
32 Junction Box Sizing
33 Box Fill - NM Cable
34 Box Fill - Story Problems
35 Box Fill - Story Problems
36 Box Fill - Story Problems
37 Box Fill - Story Problems
38 Pull Boxes - Straight Pulls - Angle Pulls
39 Pull Boxes - U Pulls - Back-of-the-Box Pulls
40 Pull Boxes - Multiple Entries
41 Pull Boxes - Multiple Entries
42 Gutter Sizing
43 Metal Wireways
44 Conduit Fill - Maximum Number of Conductors Permitted
45 Conduit Fill - Look Ups
46 Conduit Fill - Table Based on 2005 NEC® - 40%
47 Conduit Fill - Calculation Worksheet
48 Conduit Fill - Calculation Worksheet
49 Conduit Fill - Calculation Worksheet
50 Conduit Fill - Various Raceway Types
51 Conduit Fill - Story Problems
52 Conduit Fill - Story Problems
53 Surface Metal Raceway - Wiremold®
54 Nipple Fill - Table Based on 2005 NEC® - 60%
55 Nipple Fill - Various Raceway Types
56 Nipple Fill - Look Ups
57 Nipple Fill - Story Problems
58 Nipple Fill - Story Problems
59 Conduit and Nipple Fill - Percentage Practice
60 Multioutlet Assemblies
Ampacity Determination Conductor Resistance Voltage Drop
61 Ampacity Look Ups
62 Ampacity Correction - Ambient Temperature Correction Factor
63 Ampacity Correction - Conduit Fill Correction Factor
64 Ampacity Correction - Continuous Load Correction Factor
65 Ampacity Correction - All Three Factors
66 Ampacity Correction - Find Conductor When Load is given
67 Ampacity Correction - Story Problems
68 Worksheet
69 Worksheet
70 Paralleled Conductor Ampacity Correction
71 Resistance of Small Conductors
72 Conductor Resistance
73 Ampacity Correction - Free Air
74 Combination Load - Ampacity Determination
75 Maximum Unbalanced Load - Single Phase
76 Voltage Drop - Constants
77 Voltage Drop - Calculations
78 Voltage Drop - Calculations
79 Voltage Drop - Calculations
80 Voltage Drop - Percentages
81 Voltage Drop - Story Problems
82 Worksheet
83 Worksheet
84 Voltage Drop - Resistance Method
85 Voltage Drop - Percentages
86 Voltage Drop - Feeders - Branch Circuits
87 Voltage Drop - Multiple Legs
88 Voltage Drop - Three Phase
89 Voltage Drop - Three Phase
90 Voltage Drop - Three Phase
Transformers Residential Service Aspects
91 Transformer Calculations - Ep Es Np
Ns
92 Transformer Calculations - Ep Es Ip Is
Np Ns eff
93 Transformer Calculations - Ip Is Np Ns
eff
94 Transformer Calculations - Ep Es Np Ns
ratio
95 Transformer Calculations - Ep Es Ip Is
Pp Ps eff
96 Transformer Calculations - Ep Es Ip Is
Pp Ps Np Ns eff step
97 Transformer Calculations - Ep Es Ip Is
Pp Ps Np Ns eff step
98 Transformer Proportionalities
99 Transformer - Story Problems
100 Worksheet
101 Worksheet
102 Transformer - Story Problems
103 Worksheet
104 Worksheet
105 Transformer - Story Problems
106 Worksheet
107 Worksheet
108 Combination - Feeder Amps - Branch Circuit
Amps
109 General Lighting Loads
110 Receptacle Loads - Receptacle Demand
111 Lighting Load Feeder Demand
112 Dryer - Residential Demand
113 Kitchen Appliances - Commercial Demand
114 Feeder Neutral
115 Grounding Electrode Conductor for Paralleled Services
116 Equipment Grounding Conductor Due to Voltage Drop Change
117 Open Neutral - Volts/Ohms
118 Open Neutral - Volts/Voltamperes
119 Tap Conductor Sizing
120 Appliance Output at Below Nameplate Voltage
Motor Aspects Utilization Equipment Short Circuit Current
121 Motor Full Load Current
- Disconnect Size
122 Motor Full Load Current - Interpolation
123 Motor Conductor Sizing
124 Motor Branch Circuit Protective Devices
125 Motor Overloads
126 Motor Overcurrent Protection
127 Motor Feeders - Feeder Protection
128 Motor Feeder Overcurrent Protection
129 Motor Efficiency - Generator Efficiency
130 Motor Volt amperes
131 Motor Power
132 Motor Calculations - Story Problems
133 Motor Calculations - Story Problems
134 Motor Full Load Current - 3Ø
135 Motor Full Load Current - 3Ø Synchronous Type
136 Motor Full Load Current - 3Ø Interpolation
137 Motor Conductor Sizing - 3Ø
138 Motor Overcurrent Protection - 3Ø
139 Motor Overloads - 3Ø
140 Motor Feeder Overcurrent Protection - 3Ø
141 AC Refrigeration Equipment
142 Transformer Calculations
143 Capacitor Calculations
144 Cranes and Hoists
145 Individual Welders
146 Groups of Welders
147 Resistance - per 1000 feet - Copper
148 Multiple Motor Disconnect Horse Power
149 Three Phase 4 - wire Neutral Current
150 Available Short Circuit Current
