GE Industrial Solutions Spectra II Series Plug-in and Feeder Busway with BlueCoat Epoxy Insulation System - Manual (Page 17)

Spectra and Spectra II Series™ Plug-In and Feeder Busway
Installing Dripproof, Splashproof, and Outdoor Busway
15
Installing Dripproof, Splashproof, and
Outdoor Busway
Install busway according to the instructions for
indoor busway, with the following exceptions for
outdoor joints. Figure 19 illustrates the assembly
of a typical dripproof, splashproof, or outdoor
busway joint. Sequence numbers on the figure
refer to the steps below.
1. Inspect the ends of the bus and joint assembly
for damage. Outdoor and splashproof joints
should have green Weathershield™ epoxy
insulators. (Red insulators are for indoor and
drip-proof applications.) Joint caps and shields
are packed separately.
2. Maintain the proper phasing of the sections to
be joined by matching up the Ø SIDE labels
attached to the ends of each section. Loosen
the joint bolt slightly, if necessary, and slide the
sections together.
WARNING: Be sure that the busbars interleave
the insulators, as shown in Figure 11, Figure 12,
and Figure 13. The housing-ground side plates
must pass between the outside insulators and
the joint-ground side plates to avoid a phase-to-
ground short circuit.
AVERTISSEMENT: Asssurez-vous que les barres
omnibus intercalent les isolteurs, tel que montré
aux Figure 11, Figure 12 et Figure 13. Les plaques
de côté reliant le boîtier à la mise à la terre
doivent passer entre les isolateurs extérieurs et
les plaques de côté du joint à la terrre pour éviter
un court -circuit de phase à la terre.
3. The joint cap can be used as a gage (reversed,
with the gasket out) to set the desired length
dimension across the joint.
NOTE: Remove the shipping screws and center
the joint between the two lengths of busway
when adjusting to the maximum length.
NOTE: Enlever les vis de l'expédition et centrer le
joint entre les deux longueurs de la canalisation
pour barres omnibus lorsque vous faites
l'ajustement de la longueur maximale.
4. The joint is 1/8" narrower than the housing
ground plates and should be kept within the
width of the ground plates to ensure the best
seal to the joint cap gasket. The joint will be
centered laterally if the tie bars are flush
against the tie bar stop surfaces of the housing
ground plates and the bus is in good edge-wise
alignment across the joint.
5. Inspect the busway run for straightness in all
planes and make any adjustments necessary
for good alignment. Tighten the joint bolt to 50
lb-ft (68 N-m). If the optional Joint-Guard™
torque-indicating bolts are used, tighten the
bolt until the color indicator turns fully black
±1/4 turn.
6. Set the shields in place bridging the joint. Align
the edges of the shields with the edges of the
housing ground plates and fasten the shields
with the wire-form springs onto the spring
detents, as shown in Figure 20. (To secure
larger shields, first attach two diagonally
opposite spring legs, slide the shield into
alignment, then fasten the remaining legs.)
Note that lower shields are not required and
are not provided with IP43 and dripproof
horizontal flat-mounted busway.
7. Attach the two joint caps (gaskets inward) with
the four bolts provided. Depending on which
bolt is provided, tighten the 3/8-16 x 5/8" bolts
to 25 lb-ft (34 N-m) or the 5/16" x 2" bolt to 14-
18ft/lbs (19-24 N-m) . Exception: 5000 ampere
busway uses eight bolts per joint cap.
Assembled joint caps are illustrated in Figure
21 and Figure 22.
8. During installation, megohm test at 1000 VDC
the assembly occasionally to check for
improperly connected joints. The resistance
should not drop below one megohm per 100
feet of busway.
9. Before energizing, the complete run of bus
should be megohmed at 1000 VDC. Resistance