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Grounded 3P power
outlet (15 A)
750 mm or
more below
ground
2 mm
10 mm
(Example of grounding
electrode)
(a) Usual Grounding Connection (with grounded 3P power
outlet)
Ground resistance
100 or less
Grounding electrode
300 mm
(underground section)
Grounding construction for
100 or less
Appended Fig. 1-7 Grounding Method
APPENDIX 1 - 11
Grounded 3P
table tap
Power cord
(attached to
ChromasterUltra R
instrument)
6170 Binary Pump
Rear panel
S
Connector
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