Tender No.: 465S/2011/12 - City of Cape Town

Tender No.: 465S/2011/12
3.10.1.4 Grassy Park (Klip and Victoria Rd) - 1 crossing
3.10.1.4.1 Set-pieces per crossing
� Crossing 1 - 14 set-pieces
3.10.1.5 Valhalla Park (Angela Str) - 1 crossing
3.10.1.5.1 Set-pieces per crossing
� Crossing 1 - 3 set-pieces
3.10.2 SET-PIECE MANUFACTURING SPECIFICATION
3.10.2.1 The design of the set-pieces will be done by the Contractor, but must be approved by the City
of Cape Town Electricity Services before manufacturing.
3.10.2.2 Once the City of Cape Town Electricity Services approved the design, it must be placed on a
transparency.
3.10.2.3 The design is then placed on an overhead projector, shining it onto a removable white board.
It must be ensured that the design that is displayed on the removable white board will fit in the
described frame sizes.
3.10.2.4 The frame sizes are as follow:
� 2 x 2.1m
� 2.5 x 2.1m
� 3 x 2.1m
� With the 2.1m on the vertical side.
� 2 x 3m (Somerset-West)
� With the 3m on the vertical side.
3.10.2.5 While shining the design onto the removable white board, the design is traced with a black
marker pen.
3.10.2.6 Once the design is fully traced, the motif is then constructed according to the design on the
removable white board.
3.10.2.7 Metal round bars, square tubing, angle iron, expanding metal (mesh), flat bars and mild steel
plates are used to manufacture the set-pieces according to the design.
3.10.2.8 Metal round bars and flat bars are bent to fit the design.
3.10.2.9 The metal bars, etc must be welded together by means of tig welding.
3.10.2.10 Brackets must be made for the installation of set-pieces.
3.10.2.11 Set-pieces are mounted on a catenary wire.
3.10.2.12 Brackets for set-pieces are made from line taps with nylon spacers between the line tap and
the set-piece frame. This line tap must be bolted to the set-piece frame. Ensure that there
are nine (9) line taps on the set-piece, three (3) on each catenary wire.
3.10.2.13 When the set-piece frames are finished it must be first cleaned then spray painted
according to the design.
3.10.2.14 The set-pieces must first be sprayed with a primer. Ensure that two (2) layers of primer are
sprayed on the set-pieces.
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