Back of the book answers

101

stand alone  692.2

151

grounded  810.15

102

2 inches  518.4

152

dusttight  503.120

103

location  692.54

153

#14 AWG  800.120

104

non combustible  695.12F

154

.53mm  502.128

105

Class 3  500.5D1

155

4 1/2 threads  500.8D 3x.

106

8 inches  547.5B

156

30 inches  540.12

107

ignitible fibers  500.5D

157

18 inches  501.15A1

108

100 cubic inches  545.9B

158

refrigerator, range  550.2

109

combustible dust  500.5C

159

30 amp  551.71

110

6 feet  525.21A

160

20 amps  520.41

111

purged and pressurized  507D

161

30 amps  530.14

112

combustible material  520.47

162

4.5 meters  525.5B

113

commercial garages  511

163

640  520.4

114

shall not be used  700.20

164

15 and 20 amp 120 volt  525.23A1

115

specific locations  510

165

in excess of 80% of ignition temperature  501.125

116

not functioning  701.8C

166

2 inches  518.4A

117

T  702.7

167

intrinsically safe  504.2

118

1 1/2 feet  501.15A1sub2

168

7 1/2 feet  517.13B

119

seven  705.1

169

associated apparatus  504.2

120

2 inches  501.15A1sub2

170

1  516.3C3

121

660 watts  720.5

171

3  503.125

122

exclude moisture  501.15

172

F  515.7

123

F  725.5

173

live parts are exposed  502.145B

124

article 500  505.1

174

not more than 100 feet from dispensers  514.11B

125

F  727.5

175

identified  502.150A2

126

three  500.1

176

unclassified  511.3A6

127

no  760.61 table

177

GFCI protected  513.12

128

encapsulation  505

178

Class 1 Division 1  502.145A

129

metallic  506

179

multi wire branch circuit  506.21

130

T  518.4B

180

Class 2 Group E  500.6B1

131

F  660

181

vapors, liquids or gases  505.5

132

two  517.18A

182

propane  500.6A4

133

thermoplastic thermosetting  650

183

2 inches  504.30A2.1

134

three 770.9

184

maximum experimental safe gap  500.6A3

135

intrinsically safe  504

185

dusttight  503.115

136

1.5%  647

186

3  505

137

T  780.6

187

identified  502.10A1.4

138

the total connected load  645

188

Class 2  502

139

and lightning conductors  800.53

189

the boundary  501.15B2

140

20-20K Hz  640

190

class 1  501

141

8  810.1

191

enter  500.2

142

temporary lighting 590.4D

192

class 1 division 2  500.7

143

plenum  820.2

193

on either side of the boundary  501.15A4

144

3 foot by 2 foot  600.21E

194

acetylene  500.6

145

low smoke producing  830.179A2

195

class 2 division 1  502.30A

146

communications circuits in inaccessible areas  640.1

196

ignitible fibers  500.5

147

4 inches  830.44

197

T  503.10A

148

N  505.2

198

documented  500.4

149

12 inches  820.47B

199

be  504.10B

150

at least 2 inches  504.30.2.1

200

signaling alarm  501.150A