Cutler-Hammer Freedom 2100 Series, Руководство по установке и обслуживанию

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8 I.B. 8926-1A
SPLICE PLATES
Each splice plate kit consists of short pieces of bus
bar the same width as the main horizontal bus of the
MCC the kit is shipped with, four bolts per phase,
and appropriate quantities of related hardware. For a
single bus bar per phase the hardware is used as
shown in Figure 6 for either 16” or 20” deep
enclosures. Each splice plate is punched with
rectangular holes to accept a square shank carriage
bolt that will not rotate as the nut is tightened.
Where the MCC is built with two horizontal bus bars
per phase, the splice plates are installed as shown
in Figure 7. The top edge of Figures 7 through 10
represents the backside of the MCC. The top portion
of each of these figures applies to 20” deep
enclosures and the lower portion to 16” deep
enclosures. Note that for all but the single-bar per
phase (Figure 6) installation, the16” deep enclosures
require the use of a nut plate that is mounted with
the same carriage bolt used to attach the horizontal
bus bars to the channel-shaped insulators. Install
these nut plates before mounting the splice plates.
Tighten the splice plate bolts with a driving torque of
360 pound-inches (30 pound-feet).
Fig. 7 Double Bar Splice Kit
Fig. 8 Triple Bar Splice Kit
TYPE 3R ENCLOSURES
Where the MCC is supplied in a Type 3R enclosure
for an outdoor application, apply roof splice caps at
each shipping block junction to maintain the
enclosure integrity.
Fig. 9 Quadruple Bar Splice Kits