7.5.3
Precautions
(1)
The pit and duct must be electrically shielded.
(2)
The pit and duct must be protected against flooding.
(3)
The cover should be divided into sections approximately 1 meter in length.
Floor surface
Iron cover
Iron sheet
(Fixed to the floor
using bolts)
100
100
Figure 7.5-1 Sectional view of a sample wiring pit
31
Divided into approximately
1 meter sections
Iron sheet
(Fixed to the floor
using bolts)
100
No. 2A201-519EN*A