Specifications - State of Delaware

SECTION 260553 - ELECTRICAL IDENTIFICATION: continued
E. Operational Identification and Warning Plasticized Tags and Metal Signs and Plastic Signs:
1. General: Install signs with instruction or warnings wherever reasonably required to
ensure safe and efficient operation and maintenance of electrical systems, electrically
connected mechanical systems and general systems and equipment. Signs shall be placed
to prevent misuse of electrical facilities by unauthorized personnel. When signs are
installed on switches, outlets, controls, devices and covers of electrical enclosures they
may be self-adhesive vinyl or plastic. Where detailed instructions or explanations are
needed, provide plasticized tags with clearly written messages adequate for intended
purposes.
F. Danger Signs:
1. General: In addition to installation of danger signs specified, indicated, and required by
governing regulations and authorities, install appropriate danger signs at locations
indicated and at locations subsequently identified by Installer of electrical work as
constituting similar dangers for persons in or about Project.
2. Critical Switches/Controls: Install danger signs on switches and similar controls,
regardless of whether concealed or locked up, where untimely or inadvertent operation
(by anyone) could result in significant danger to persons or damage to or loss of property.
3. Provide the following danger sign on the equipment indicated:
a. "Danger This Machine Starts Automatically" on all air compressors.
G. Warning Signs:
1. Provide an orange background sign with black letters reading "WARNING: LOAD
SIDE OF SWITCH MAY BE ENERGIZED BY BACKFEED" on all tie switches and tie
circuit breakers.
2. Provide cable tray warning signs with 1-1/2-inch high black letters on an orange
background that reads: "Warning! Not to be used as a walkway, ladder, or support for
ladders for personnel." Provide on each side of cable tray at 10-foot intervals, visible
from the floor below.
H. Equipment/System Identification Nameplates:
1. General: Install engraved plastic-laminated nameplates on each major unit of electrical
equipment in the building; including central or master unit of each electrical system
including communication/control/signal/alarm systems, unless unit is specified with its
own self-explanatory identification or signal system. Except as otherwise indicated,
provide single line of text, 1/2-inch high lettering on 1-1/2-inch high sign (2 inches high
where two lines are required), black lettering on white field. Provide text matching
terminology and numbering of the contract documents and shop drawings. Nameplate
shall include unit designation, normal source circuit number ("Fed from..."), circuit
voltage, and other data specifically indicated. Nameplate shall indicate normal source
circuit number ("Fed from..."), and emergency source circuit number ("Fed from..."),
when the equipment is a transfer switch or fed directly from a transfer switch. Provide
nameplates for each unit of the following categories of electrical work:
a. Switchboards, panelboards, electrical cabinets, and enclosures. (Include main bus
ampacity on the nameplate.)
b. Access panel/doors to electrical facilities.
c. Major electrical switchgear (include main bus ampacity on the nameplate).
d. Electrical substations (include main bus ampacity on the nameplate).
e. Motor control centers (include main bus ampacity on the nameplate), and individual
motor starters.
f. Disconnect switch.
260553-4 DEAN260553.DOC