16900-4
CONTROLS
2. Atleast four spare sets of clips shall be provided on each fuse block and shall
be labeled “SPARE”.
3. Fuse block switches shall be din rail mounted.
4. Fuse blocks shall be Littlefuse Omni-block, Bussmann, or considered equal.
Terminal Strips
1. Terminal strips with box type connectors shall be supplied to make all power
and control connections. All terminals shall be clearly marked for easy
identification. A ground terminal strip shall also be provided. At least 20
percent of terminals supplied shall be spare. All wiring shall be terminated on
field terminal blocks.
Control Power Transformers
1. Supply all control power transformers necessary to make panel functional. All
transformers shall have both primary legs and all "hot" secondary legs fused.
One secondary leg shall be grounded. Fuse sizing shall be as recommended by
the equipment manufacturer for the particular installation.
2. Final sizing of the control power transformer shall be based on the application
and control equipment to be operated on this equipment. The
supplier/contractor shall review all system schematics and provide the
appropriate size CPT for each application. Oversized CPT will be required
where necessary for the installation.
Emergency Stop Pushbuttons (E-Stops)
1. Pushbutton control station shall be red, large mushroom-head maintained
switch with pull-on and push-off type. Provide multiple output contact type as
shown on the drawings. Device shall maintain the NEMA rating for area in
which it is being installed.
PART 3 - EXECUTION
3.1
INSTALLATION
A.
All items incorporated into the work shall be installed in accordance with the
Drawings and Specifications. Where detailed drawings or technical specifications
are not provided, the items shall be installed in accordance with the manufacturer's
preferred recommendations and confirming to the best practice of the trade
involved.
B. All installations shall be in accordance with the applicable sections of Division 11,
13, 14, 15 and 16 (where applicable).
TESTS
A. All items shall be factory tested.
B. Refer to section 16950 for additional testing requirements.
END OF SECTION
13089K
