16
Instructions for the installation and
Figure 10.
36.75
[933.50 mm] MINIMUM (SEE NOTE 1)
BOTTOM VIEW
SEE NOTE 2
19.69 [500 mm]
<3150A
31.50 [800mm]
3150A
NOTES:
1.
MINIMUM RECOMMENDED CABLE VAULT DEPTH IS BASED ON USE OF (4) 1250 KCM OR 630 SQ MM MV POWER CABLES PER PHASE. WHEN ADDITIONAL DEVICES SUCH AS ZERO SEQUENCE GROUND FAULT CT'S OR VT'S ARE LOCATED WITHIN THE CABLE VAULT, ADDITIONAL DEPTH MAY BE REQUIRED TO ACCOMMODATE THESE DEVICES. IT IS CUSTOMER'S RESPONSIBILITY TO DETERMINE APPROPRIATE CABLE VAULT DEPTH BASED ON ACTUAL NUMBER OF CABLES PER PHASE, THEIR SIZES, TOTAL NUMBER OF CABLES FOR THE ENTIRE SWITCHGEAR LINEUP, AND ANY ADDITIONAL DEVICES LOCATED WITHIN THE CABLE VAULT.
2.
SEE FLOOR PLAN DETAIL FOR ANCHOR SYSTEM REQUIREMENTS.
3.
IF LV TRENCH IS SEPARATE FROM MV CABLE VAULT, (SEE DETAIL 1), THEN MAXIMUM DIMENSION SHOULD NOT EXCEED THE VALUE SHOWN. LV TRENCH DEPTH TO BE DETERMINED BY SITE ENGINEER. IF CABLE VAULT IS INTENDED TO BE EXTENDED FORWARD FOR ROUTING LV WIRING CONDUITS AND MV CABLES IN A COMMON SPACE (SEE DETAIL 2), THEN A STRUCTURAL BEAM OR OTHER MEANS OF SUPPORT OF ADEQUATE WIDTH SHOULD BE POSITIONED UNDERNEATH THE FRONT ANCHOR POINTS TO PROVIDE REQUIRED LOAD BEARING SURFACE FOR ANCHORING SYSTEM AND EQUIVALENT SUPPORT, FLATNESS AND MAXIMUM
DEFLECTION. SIZING OF STRUCTURAL
SUPPORTS TO BE DETERMINED BY SITE ENGINEER.
4. FRONT TO REAR STRUCTURAL SUPPORT SPANNING THE VAULT IS NOT
REQUIRED AT THE ENDS OF THE LINEUP OR AT INTERMEDIATE SEAMS BETWEEN VERTICAL SECTIONS. HOWEVER, IF PROVIDED, SUPPORT ENGAGEMENT OF MORE THAN 1.75 IN [45 MM] COULD RESULT IN INTERFERENCE WITH AVAILABLE LV ENTRY AREA.
5. FLOOR SUPPORT STRUCTURE SPECIFICATIONS TO BE
DETERMINED BY
SITE ENGINEER.
"SEE FLOOR PLAN DETAIL FOR DETAILED DIMENSIONS"
5.08
[129 mm] LV ENTRY
6.25 [159.0 mm] MIN
STRUCTURAL
SUPPORT
SECTION A-A
SEE NOTE 4
SEE NOTE 5
A
SEE NOTE 5
A
SEE NOTE 3
9.8
[249.5 mm]
1.38
[35 mm]
3.35
[70.00 mm]
3.35
[70.00 mm]
90.84
[2307.25 mm]
111.23
[2825.21 mm] HEIGHT WHEN
SUPERSTRUCTURE
IS REQ'D
71.71
[1821.39 mm]
PANEL TO PANEL
2.76
[70.0 mm]
REAR ANCHOR
CHANNEL
72.01
[1829.1 mm]
BASE
12.83 [326 mm]
MV ENTRY (3 PLACES)
51.18
[1300 mm] MAXIMUM
6.25 [159.0 mm] MIN
STRUCTURAL
SUPPORT
2.76
[70.0 mm]
FRONT ANCHOR
CHANNEL
1.89
[70.00 mm]
(SEE NOTE 4)
63.7
[1617.9 mm]
47.50
[1206 mm] MINIMUM
SEE NOTE 2
6.25 [159.0 mm] MIN
STRUCTURAL
SUPPORT
SEE NOTE 5
A
A
SEE NOTE 3
2.76
[70.0 mm]
REAR ANCHOR
CHANNEL
51.18
[1300 mm] MAXIMUM
6.25 [159.0 mm] MIN
STRUCTURAL
SUPPORT
2.76
[70.0 mm]
FRONT ANCHOR
CHANNEL
63.7
[1617.9 mm]
36.75
[933.50 mm] MINIMUM (SEE NOTE 1)
DETAIL 1: MV CABLE VAULT W/ SEPARATE LV TRENCH
DETAIL 2: MV AND LV CABLE VAULT
"SEE DETAIL 1 FOR SWITCHGEAR DIMENSIONS"
47.50
[1206 mm] MINIMUM
1.57
[249.5 mm]
Typical cable vault foundation diagram.
