| Home
> Featured Project > Pearl
Harbor
Reinforcing Steel Lead Wire Installation
Connections were made to three steel reinforcing bars (rebars)
near the edges of each ICCP grid area. Two connections were made
to longitudinal rebars. The other connection was to a transverse
rebar. The connections were checked for good continuity within the
entire bottom layer of reinforcing steel. The contractor accessed
the rebars by drilling a 2-inch (5 cm) diameter hole through the
concrete cover. Number 12 AWG (2.7 mm diameter) copper conductor
lead wires were welded to the reinforcing steel at the access holes
(Figure 38).
The rebar lead connection access hole was grouted with Sikatop
123 Plus? (Figure 39). The rebar lead wire was routed in 1-inch
(2.5 cm) conduit beginning where the wire emerged from the concrete
to the edge of the area where they teed into the conduit containing
the anode lead wires. At the tees, the three rebar lead wires from
each area were soldered to a single Number 12 AWG (2.7 mm diameter)
copper conductor that serves as a cathode bus. The bus was placed
in the 2-inch PVC conduit containing the anode leads and ran to
the junction boxes. All wire-to-wire connections were solder joints
that were sealed watertight.
|
