Appendix K - HC102812R0067.pdf
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Appendix K - DISA Labeling Standard
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DISA Computing Services Division (CSD) Facilities Engineering Team (CD521)
Minimum Technical Specifications for System & Component Identification, Marking, and Labeling
Table of Contents
1. Purpose
2. Scope
3. Definitions
4. General Requirements
4.1. Labeling
4.2. Color Identification
4.3. Language
5. Facility Location Identification
6. Cross-Reference to Other Identification Systems
7. Labeling Standards (Generic)
7.1. Physical Label Format
7.2. Equipment Identification Number (EIN)
7.3. Physical Characteristics
8. Labeling Standards for Piping & Ducting Systems
8.1. Valves & Dampers
8.2. Color Identification
9. Labeling Standards for Information Technology (IT) Equipment
9.1. Rack Location Identification
10. Labeling Standards for Infrastructure Equipment
11. Mechanical Systems & Equipment
11.1. Color Identification
11.2. Dual-Fed Infrastructure Equipment
12. Electrical Systems & Equipment
12.1. Color Identification
12.2. Primary Electrical Distribution (Bus Ducting, Main Distribution Panels (MDPs), Main Switch Boards (MSBs), Motor Control Centers (MCCs), and similar)
12.3. Secondary Voltage Distribution Equipment (Distribution Panels, PDUs, RDCs)
12.4. Transformers, UPS Equipment, Switchgear, & Contactors
12.5. Emergency Power Generation Equipment
12.6. Raceways, Light Switches, Receptacles, and Emergency Lighting Fixtures
Appendix 1. System Abbreviations & Associated Data Appendix 2. System & Component Designators Appendix 3. Labeling Examples
Page 2 of 28 Version Date: 8 November 2011
1. Purpose.
The purpose of this Facilities Engineering specification (part of CSI 360-95-3, DISA Computing Services Facilities Standards) is to establish guidance for identifying and labeling Structures, Systems, Equipment, and Components (SSEC).
2. Scope.
This specification contains instruction for uniform identification and labeling of SSEC at DISA Computing Services locations. Applications include:
2.1. Identifying and labeling new systems when installed.
2.2. Re-labeling existing systems as field verification documentation is generated.
2.3. Uniform identification of SSEC used across the enterprise.
Within this standard, a SHALL statement identifies mandatory elements and requirements. A Should statement is a recommendation that is based on standard industry practice and good business policy. In limited circumstances, the word may is used when permission is granted rather than constituted as a requirement.
3. Definitions.
Component. A constituent part of a system; includes valves, instruments, pumps, motors, etcetera.
Some components may also be equipment. Some components may also be LRUs.
Daedal. Ingenious and complex in design or function; intricate. Finely or skillfully made or employed;
artistic.
Equipment. An item constructed from an assembly of parts, components, and/or LRUs, designed and manufactured to perform a specific function that typically have a unique manufacturer’s model number.
Some equipment may also be LRUs.
Line Replaceable Unit (LRU). A complex component that is designed to be replaced quickly at the organizational level. See section “Equipment Identification” in TIM (CSI 360-95-3A) O&M Module 7 (Documentation, Tracking, and Reporting) for a detailed contextual explanation and examples of LRUs.
Pipes. Conduits for the transport of gases, liquids, semiliquids, or fine particulate dust. Does not include electrical or data communications conduits or raceways for the purposes of this specification.
System. A collection of equipment, piping and/or ducts, and components, performing in unison to accomplish a specific results(s).
Structure. Buildings, towers, roof systems, shelters, foundations, parking structures and lots, permanent fixed utilities, and other real property and real property systems or components. The removal of these items would diminish the value of the property or its ability to perform the basic function of the structure.
Equipment and systems are removable and non-permanent in this context.
4. General Requirements.
SSEC SHALL be labeled per operational requirements before being designated operable or in service.
Labeling of systems and components in areas where hazards exist (i.e. high structures and confined spaces) SHALL be evaluated against safety requirements. For example, to reduce personnel risk, some components could be labeled as site conditions permit (e.g., shutdown), or when scheduled maintenance is performed.
4.1. Labeling.
System & Component Identification, Marking, and Labeling
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Labels SHALL be permanently attached and designed to withstand wear, erosion and corrosion. They SHALL be heat resistant in high temperature areas and corrosion resistant in acid or caustic areas.
Position labels so they are readily visible and, where feasible, oriented in a horizontal position. Labels SHALL be legible without manipulation by site personnel. Large equipment SHALL be labeled in multiple locations, in close proximity to where workers perform their tasks. Although not recommended, vertical orientation may be used only where space is limited. Vertical orientation SHALL be read from top to bottom.
Labels or tags installed under this specification SHALL not interfere or alter existing manufacturer’s nameplate or code information.
Where applicable, component labels SHALL include an identification number identical to that shown on approved drawings and diagrams.
Labels SHALL be located to eliminate any possible confusion as to the item being identified and SHALL not obscure other items nearby.
Label size SHALL be based on available lighting and anticipated reading distances. Components which require local operation during blackout or reduced visibility conditions SHALL be marked with reflective or glow-in-the-dark tape.
Labels SHALL not interfere with an operator’s ability to read the instrument, display, or gauge.
Labels SHALL be mounted in such a way as to preclude accidental removal.
Labels SHALL be mounted on a flat surface, if possible.
4.2. Color Identification.
Label colors SHALL provide a high contrast between characters and background to enhance legibility.
Colors for equipment color coding SHALL be assigned only one meaning per color scheme and SHALL be consistent.
4.3. Language.
Use of component identifier and noun descriptions SHALL be consistent among component labels, equipment lists, drawings, procedures, checklists, and load lists. System checklists, procedures, and installed labels SHALL use common identifiers to describe the name and number nomenclature for the component.
Abstract symbols SHALL be used only if they have a commonly accepted meaning for all intended users (e.g., %).
Brevity Should not be stressed if the results will be unfamiliar to operating personnel. Words on labels Should be concise and still convey the intended meaning.
Words and abbreviations of similar appearance SHALL be avoided where an error in interpretation could result. When labels containing similar words, abbreviations, or acronyms are located in close proximity to each other, different words Should be selected or means of coding Should be used to reduce the probability of selecting the wrong control or reading the wrong component.
5. Facility Location Identification.
Specifically because of the legacy nature of DISA facilities, no single facility location system is implemented enterprise-wide. Individual sites have developed and implemented individual location identification methodologies that are beyond the scope of this document. New facilities SHALL follow the location identification guidance herein.
System & Component Identification, Marking, and Labeling
Page 4 of 28 Version Date: 8 November 2011
Each DISA occupied space, on load-bearing columns or posts, SHALL have column labels to identify the proper column number. These column labels define a quadrant which covers the area contained within the adjacent columns of a defined direction. Note column or post may be totally encapsulated within walls.
Column identifier A1 is the first corner column of the building as defined by the original A&E construction drawings. Orient labels along building axes (plan North, South, East & West) surfaces.
Alpha identifiers SHALL increase from plan south to plan north. Numeric identifiers SHALL increase from plan west to plan east. For structures without internal columns (ie: only 4 corner columns), designate A1 for the whole structure. In absence of column on quadrant boundaries provide ceiling-hung identifier.
Identifiers SHALL be a 4-inch character, semi-gloss black lettering, painted onto column with top of character not more than 6 inches below ceiling, concrete slab, truss line or typically accepted physical divider between workspace and ceiling line. Identifiers SHALL be located on exactly two opposing sides of each column; orientation lengthwise or widthwise of each room is not prescribed.
Primary references to location in datacenter IT equipment rooms (aka Computer Rooms) SHALL be by master plan layout location, typically indicated by quadrant, zone, row, and rack location. Datacenter layouts SHALL be master-planned as required by section 13 01 21 of the Facilities Standards, where power and cooling drive the satisficing equipment layout. Equipment layouts can be adequately defined by quadrant, zone, row, and rack location in the master floor plan.
Secondary references to location on raised access floor datacenters may be used. As with the overall facility column identification system, the access floor grid shall be alphanumeric with tile location A1 denoting the (plan) southwestern-most full tile on the floor. This may be of use in designating equipment locations for non-standard raised floor items (including CRAC units and larger storage or mainframe units, by designating their southwestern-most corner). These references SHALL be secondary as new datacenter facilities are not anticipated to have referential access floor or ceiling grids.
All partitions and enclosures within each facility SHALL be labeled with the appropriate room numbers at all entrances and exits. Signage SHALL be posted immediately adjacent to the entrance designating the room being entered. Sign design SHALL comply with all the UFAS/ADA Guidelines; Underwriters Laboratory (UL) – Illuminated Signs Standard; Occupational Safety and Health Administration (OSHA) Standards for safety signs; and Federal Standard 795 for accessibility.
Approximately compliant column labeling, along with adequate visual markings for portable fire extinguisher location
Page 5 of 28 Version Date: 8 November 2011
6. Cross-Reference to Other Identification Systems.
Nothing in this specification is designed or intended to conflict with any other mandatory standard(s) affecting the DISA Computing Services environment. This specification does not define labeling standards for communications or data cabling or enclosures, or for IT equipment.
Identification tools such as Aperture (Vista), COMET, RFID tagging, and CMMS SHALL include database fields (where applicable) to identify the standardized Equipment Identification Number (EIN) and equipment “common” name (e.g., “Chiller #4”) as specified herein. These fields are not intended to supplant or replace other identification numbers already in use by other systems.
Legacy numbering and identification systems SHALL be updated where possible to include the standardized identification information described herein. Legacy information SHALL be retained in written and supplementary database field formats for historical cross-reference compatibility.
7. Labeling Standards (Generic).
7.1. Physical Label Format.
System & Component Identification, Marking, and Labeling
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The standard format for compliant equipment labels SHALL contain all necessary information to completely identify the labeled equipment for purposes of property accountability, operations and maintenance procedures and processes, and critical safety. Labels SHALL consist of a rectangular tag or pendant engraved, embossed, or imprinted with six (6) lines of information:
• Line 1: Building and System (optional)
• Line 2: Equipment Identification Number
(EIN)
• Line 3: Equipment Data (dependent upon equipment/system type)
• Line 4: Equipment Data (dependent upon equipment/system type)
• Line 5: Equipment Data (dependent upon equipment/system type)
• Line 6: Associated Drawing Number (if applicable)
The first line designates the building in which the equipment is located and the System Designator (optional) from Appendix 1. This building designator is optional. More detailed location data, if required, SHALL be located on line 3, 4, or 5 (see specific label specifications below).
7.2. Equipment Identification Number (EIN).
All equipment SHALL be assigned a unique Equipment Identification Number (EIN). All information shown on first and second line of an equipment label may be represented as a single line. The hyphens may be shown as a space on electrical equipment labels.
Typical standards-compliant label with line 5 blank (not used for this type of equipment).
Color scheme is for example only.
System & Component Identification, Marking, and Labeling
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The second line of the figure above (ASDF-XX-YY) designates the unique EIN of the system, equipment, or component to which the label is attached.
The EIN is not necessarily related to the “common” name of the equipment. Labeling of equipment may contain equipment “common” or legacy equipment name information, typically in Line 5 of the equipment label (see sections 10-12 below).
EINs are initially generated in an ordinal manner where possible, with the first device in a category being unit 1, the next unit 2, and so on without regard to the “common” or legacy name or number of the equipment. EINs may be generated to keep EINs consistent with the legacy numbering system, where possible, so long as the EIN format in the figure above is not compromised.
The first character set of the EIN represents the Component Designator and SHALL be alpha only, from one (1) to four (4) characters. Reference Appendix 2 for approved Component Designators. The Component Designator SHALL be included in the identification number.
The second character set of the EIN represents the System Designator, which SHALL be alphanumeric.
Reference Appendix 2 for approved System Designators. System Designators are optional for some mechanical equipment components (only). For systems configured with a redundant supply, both System Designators SHALL be incorporated in the identification (i.e., a transfer switch supported by an A and B bus may be distinguished as SWGR-AB-1, et cetera). Note that legacy drawings do not necessarily follow the labeling system described herein.
The third character set represents the Sequence Number, SHALL be used to designate redundant or sequential components such as sequential panels, spare components, and redundant systems (i.e. two (2) sequential panelboards connected to a critical UPS bus would be distinguished as UPP-A-1 and UPP-A-2, et cetera) and SHALL be numeric. Note that the third character set will not necessarily conform to a legacy numbering system for the component type or system.
The fourth character set is an additional Sequence Number, which SHALL only be used for specific designated equipment Component Designators. When required, it shall be a single numeric character.
7.3. Physical Characteristics.
Materials.
Plastic Labels.
Plastic materials are generally acceptable for permanent equipment labels described in section 7.1. Use of plastics for high-temperature components SHALL be avoided unless the labeling material is approved for high-temperature applications. Printed identification information, if used, SHALL be indelible, environmentally stable, and chemically resistant. Engraved labels where a two-color plastic material is used to obtain the required color coding combination are equally acceptable.
Metal Labels.
Metal tags are acceptable for permanent equipment labels described in section 7.1. Paints or powder coatings used on these tags SHALL be environmentally stable and chemically resistant.
Identification Tape.
Commercially available tape products may be used for labeling of common components where detailed EIN and other information is not necessary; for example, on insulated piping systems, labels indicating contents and direction of flow are generally sufficient.
Machine-Printed Identification Tags.
On components subject to frequent modification or replacement (for example, power whips from a PDU to an IT equipment rack), machine-printed labels are acceptable. These typically print on a flexible form
System & Component Identification, Marking, and Labeling
Page 8 of 28 Version Date: 8 November 2011 of paper, which SHALL be secured to the component in such a manner as to protect the labeling information from degradation. Typically, this means covering of the label with clear plastic or acetate tape.
Unapproved Materials.
Materials which can be lost, damaged, rendered unreadable, easily removed, soiled or degraded by operating environment, or which are of a non-permanent nature SHALL not be used for labeling or identification purposes. This includes (but is not limited to) paper, paper in clear plastic protectors, wishful thinking, and direct labeling of SSEC with markers or paint.
Attachment.
Adhesives.
Adhesives may be used to secure labels or tags to SSEC. Adhesives Should securely fasten the label to the component without causing degradation to the component or the label. The adhesive SHALL be chemically compatible with the label material, the component material, and the environment. Adhesives SHALL not be used on stainless steel piping or components. The adhesives SHALL be 3M five-minute epoxy or equivalent, GE clear silicone or equivalent, or 3M double control tape or equivalent.
Wire.
Bare wire may be used for attaching labels to components where use of adhesives is not practical and there is no risk of the bare wire becoming electrically energized (e.g., valve tags).
Cable Ties.
Standard 50lb cable ties (a.k.a. zip ties, nylon ties, plastic ties, tie wraps) may be used for attaching labels to components where use of adhesives is not practical (e.g., valve tags).
Chain.
Zinc plated general utility chain may be used for attaching labels to components. The type of chain SHALL be single-jack chain of trade size 20 or 18.
Character Design and Size.
Character Style.
Labels SHALL be formed exclusively with capital letters using simple letter styles. A bold sans serif font is standard for SSEC labeling purposes. No additional restrictions are set on other labels, including facility signage, in order to allow flexibility in aesthetic design.
Character Height.
The minimum character height SHALL be according to the following table:
Maximum Viewing Distance (D = Inches) Character Height (D = Inches)
D<12 3/32”
12<D<24 5/32”
24<D<36 1/4"
36<D<60 3/8”
60<D<84 1/2"
System & Component Identification, Marking, and Labeling
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84<D<120 3/4"
120<D<150 1”
150<D<200 1-1/4”
200<D<240 1-1/2”
Character Width.
Character width-to-height ratio for letters SHALL be between 3:5 and 1:1. The width of letters “M” and “W” SHALL be at least 4/5 of the height, and the letter “I” is normally one stroke wide. For numerals, the width-to-height ratio SHALL be 3:5 except the numeral “4”, which SHALL be one stroke wider, and the numeral “1”, which SHALL be one stroke wide.
Character Stroke Width.
The stroke width of characters SHALL be 1/6 to 1/7 of the character height.
Character Spacing.
The minimum space between characters SHALL be one stroke width. The minimum space between words SHALL be the width of one character. The minimum space between lines SHALL be one-half character height.
8. Labeling Standards for Piping & Ducting Systems.
Piping systems and conveyed materials SHALL be identified IAW the current version of the ANSI “Scheme for Identification of Piping Systems” (ASME A13.1). For the purposes of this specification, piping systems SHALL include pipes of any kind and, in addition, fittings, valves, and pipe coverings. Supports, brackets, or other accessories are specifically excluded from applications of this specification. This section further does not apply to pipes buried in the ground nor to electrical conduits. Pipes are defined as conduits for the transport of gases, liquids, semiliquids, or fine particulate dust.
Legend is primary and explicit for identification of piping contents. Positive identification of the contents of a piping system SHALL be by lettered legend giving the name of the contents in full or abbreviated form. Arrows SHALL be used to indicate direction of flow. Contents SHALL be identified by legend with sufficient additional details such as temperature, pressure, etcetera as necessary to identify any potential hazard.
Legend SHALL be brief, Example of compliant commercially available piping system legend marking; in this case not encased or painted for rapid identification.
Color-coded piping covers ease identification and make the physical plant significantly more aesthetic.
System & Component Identification, Marking, and Labeling
Page 10 of 28 Version Date: 8 November 2011 informative, pointed, and simple for greatest effectiveness. Legends SHALL be applied close to valves or flanges and adjacent to changes in direction, branches, and where pipes pass through walls or floors;
and at intervals on straight pipe runs sufficient for identification.
Piping insulation Should either be enclosed in color-coded plastic (vinyl or PVC) or painted to enable rapid identification of piping contents without needing to identify the legend. This requirement is not mandated by standard or code and is emphasized for aesthetic purposes, as physical plants supporting the datacenter are generally included on VIP tours. Colors for piping insulation coverings (or paint) are not specified, except as to meet the minimum requirements of ANSI 13.1 (color of fire protection piping being red, for example).
8.1. Valves & Dampers.
Facility valves and dampers SHALL be labeled regardless of function and proximity to other equipment.
This includes check and relief valves.
Stainless steel tagging wire SHALL be placed in such a manner so as not to damage the valve stem or impede operation of the valve. Label plates and connecting wire SHALL not be threaded through the valve handwheels, operating chains, or damper linkage.
Both ends of extension of remote, mechanically operated (reach-rod) valves SHALL be labeled.
Chain-operated valves SHALL be labeled at the valve body. In addition, labels SHALL be placed on a small piece of plastic pipe or metal ring through which the chain can easily pass, allowing the label to remain at the bottom of the chain loop.
Valves associated with a piece of equipment such as backflow preventers (BFP), Should have an identification number identical to the equipment followed by a numeric character to uniquely identify it.
For example, V-FP-4 would be an identification number for the first valve on the fourth backflow preventer (with EIN BFP-FP-4).
When numbering manually operated valves and check valves which have no associated process & instrumentation diagram, start numbering at the source and sequentially follow the process flow of that system.
Any valve equipped with other than a manual operator SHALL be considered an instrument valve and identified with the appropriate equipment/component designator (reference Appendix 2).
Label contents:
Line 1: (required) Equipment Identification Number (EIN)
Line 2: (optional) Description (name or use)
Line 3: (required) Valve or Damper position during normal operations
Note: This line is required for safety system major flowpath valves and locked valves and dampers. The word “throttled” SHALL be used to indicate position for those valves in a throttled position during normal operation. For locked valves, the word “locked” SHALL precede the valve position. This line is optional for other dampers and valves.
Line 4: (optional) Specialized information (see text for requirements)
Line 5: (optional) Associated drawing number
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For motor-operated valves, the motor power supply SHALL be indicated on optional line 4.
For the air supply valve to an air-operated valve (AOV) or damper, the AOV or damper being supplied SHALL be indicated on optional line 4.
8.2. Color Identification.
Color SHALL be used to identify the characteristic hazards of the contents, if appropriate, and the contents of low-hazard potential systems. Color SHALL be displayed on the piping by physical means, in combination with legend. Color SHALL be used in continuous, total-length coverage in plant areas and in intermittent displays in transit and distribution areas.
Classification Color Field Color of Letters for Legend
Materials Inherently Hazardous
Flammable or Explosive
Yellow Black Chemically Active or Toxic
Extreme Temperatures or Pressures
Radioactive
Materials of Inherently Low Hazard
Liquid or Liquid Admixture Green White
Gas or Gaseous Admixture Blue
Fire Quenching Materials
Water, Foam, CO2, Halon, etc. Red White
DISA Standard Industrial Piping Identification
Label Abbreviation System, Pipe Contents Label Colors
V-12
SOLENOID VALVE
NORMALLY OPEN
MECH-M-005
Line 2
Line3
Line 5
Line 1
System & Component Identification, Marking, and Labeling
Page 12 of 28 Version Date: 8 November 2011
CHWR Chilled Water Return Green - White
CHWS Chilled Water Supply Green - White
CWR Condenser Water Return Green - White
CWS Condenser Water Supply Green - White
FOR Fuel Oil Return Yellow - Black
FOS Fuel Oil Supply Yellow - Black
HPC High Pressure Condensate Blue - White
HPS High Pressure Steam (above 125#) Blue - White
HWR Hot Water Heating Return Green - White
HWS Hot Water Heating Supply Green - White
LPC Low Pressure Condensate Blue - White
LPS Low Pressure Steam (below 25#) Blue - White
MPC Medium Pressure Condensate Blue - White
MPS Medium Pressure Steam (above 25# - below 125#) Blue - White
PCR Pumped Condensate Return Blue - White
HWR Hot Water Heating Return Green - White
HWS Hot Water Heating Supply Green - White
LPC Low Pressure Condensate Blue - White
MPC Medium Pressure Condensate Blue - White
MPS Medium Pressure Steam (above 25# - below 125#) Blue - White
PCR Pumped Condensate Return Blue - White
FIRE Fire Suppression Water Red - White
DCW Potable Cold Water Green - White
DHW Potable Hot Water Supply Green - White
DHWR Potable Hot Water Return Green - White
NG Natural Gas Yellow - Black
Legacy color schemes in use at DISA datacenters are authorized to remain in use. Any and all insulation replacements, projects affecting piping systems, and new labeling SHALL be completed to this standard.
System & Component Identification, Marking, and Labeling
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9. Labeling Standards for Information Technology (IT) Equipment.
In general, the specification of color coding and identification systems for IT equipment is not in the purview of these standards.
No enterprise standards for color or labeling have been identified to refer users to.
9.1. Rack Location Identification.
In order to cross-identify IT equipment racks located on the raised floor with critical safety information (including power sources), each rack SHALL be tagged with its zone number and rack number. This information SHALL be posted on the front and rear exterior of each rack, on the frame above the door. Machine-printed paper tags secured with clear plastic or acetate adhesive tape are the minimum standard for these tags.
Alternative IT equipment (non-rack based) SHALL be tagged with zone number and physical location, and with any additional identifying information needed to identify that specific piece of equipment. For example, a PX720 device may be identified as “Zone 2, Racks 3-4, PX720” if that information is sufficient to identify the device from records in the PDU supplying power to it.
10. Labeling Standards for Infrastructure Equipment.
Systems, equipment, and components SHALL be identified and labeled in accordance with this specification.
Mechanical equipment shall follow guidance in section 11 (Mechanical Systems & Equipment).
Electrical equipment and systems shall follow guidance in section 12 (Electrical Systems & Equipment).
Legacy equipment names (“Common Names”) shall be maintained, but shall be used only in double quotes, e.g. “MCC-A”, “EPP-AB1”, and similar, to differentiate individual site legacy nomenclature from the enterprise standard EIN system nomenclature. Where compartments in primary electrical distribution are referred to, the format shall have the equipment name inside of the double quotes and the compartment identification outside, e.g. “MCC-A-1” 2F. Where the legacy name contains ‘Panel,’ e.g.
“Panel HB”, the “Common Name” for the equipment shall be only the identifier “HB”.
11. Mechanical Systems & Equipment.
Labels on major pieces of mechanical equipment (e.g., pumps, heat exchangers, AHUs, CRACs, compressors, tanks, etc.) SHALL be attached to a structural member of the equipment not normally removed during routine maintenance (e.g., base plate) and in a consistent location for similar equipment.
Large equipment SHALL be labeled in multiple locations in areas where personnel are expected to do work.
General label contents:
Line 1: (optional) Building and System
Line 2: (required) Equipment Identification Number (EIN)
Line 3: (optional) Noun description (component “Common Name”)
Line 4: (optional) Parent EIN, e.g. ‘From MDP-A-1’
Line 5: (optional) Additional information
Sample of compliant IT rack identification
System & Component Identification, Marking, and Labeling
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Line 6: (optional) Associated drawing number
11.1. Color Identification.
Color coding assignment for non-electrical system and component labeling Should be according to the following table:
System Field Color Text Color
Fire Protection Systems Red White
Mechanical Systems Black White
Dual-Fed “C” and “D” Essential Bus Systems Brown White
Existing site legacy color coding for these systems is acceptable. Differentiation of two-bus mechanical delivery support systems is not currently mandated (but encouraged). Standardization of actual equipment paint color is not prescribed; manufacturer colors are acceptable.
The following colors codes are reserved for use for non-electrical system and component labeling.
Inquire with CD521 for access to these reserved codes:
Green Yellow Orange
Gray Tan Purple
Line 3
Line 4
Line 5
Line 6
Line 2
BLDG309 HVAC
ACU-C-3
“RTU Number 3”
From PP-C-11
MECH-M-014
BLDG300 FPS
BFP-FP-4
“Backflow Preventer 4”
ZANZ-F-007
Line 3
Line 4
Line 5
Line 6
Line 2
BLDG 842 EPS
CRAC-C-6
“CRAC 6”
From PP-C-4
SEA-M-014
System & Component Identification, Marking, and Labeling
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11.2. Dual-Fed Infrastructure Equipment.
Dual-fed mechanical components are those that are powered from systems that automatically transfer from the primary/normal source to the backup/emergency source through an automatic transfer switch, hot tie, or similar, or are otherwise generally considered to have power that can be routed automatically from multiple sources. In general, critical support equipment will have this capability and may be considered dual-fed.
It is the intention of the labeling to imply that all dual-fed equipment will automatically transfer in the event of a power outage on one or both supporting systems/busses.
Label contents for dual fed components SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN) – including Component Designator, dual feed sources (i.e. AB), sequence number
Line 3: Noun description (component “Common Name”)
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
Line 5: Additional information (optional) – Destination if appropriate
Line 6: Associated Drawing Number for system description (optional)
12. Electrical Systems & Equipment.
Electrical distribution equipment including but not limited to transformers, distribution panels (both primary & secondary), motor control centers, and bus and switchyard components SHALL be labeled with plastic labels, metal tags, or approved machine generated adhesive tape. Smaller components such as breakers, switches, and IT equipment power circuits (“whips”) SHALL be labeled with approved machine generated adhesive tape, cable tags or other approved method. Hand written labels of any type are not permitted.
IT equipment Power Distribution Unit (PDU) and Remote Distribution Cabinet (RDC) components, including power whips and associated receptacle boxes, SHALL be labeled with plastic labels or approved machine-generated adhesive tape. Hand written labels of any type are not permitted.
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
BLDG103 EPS
CH-CD-2
“Chiller #2”
480V
STLO-E-015
System & Component Identification, Marking, and Labeling
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All redundant power distribution within the datacenter SHALL incorporate specific color identification to differentiate between different electrical bus power. Use of specific color identification for each electrical bus SHALL stay consistent throughout building distribution.
Labels installed internal to electrical or electronic components SHALL not provide a ground or short circuit path or interfere with the operation of components.
For uniquely identified handswitches, the equipment identifier and name of the remote operated component SHALL be included on the handswitch label.
Electrical panel nomenclature of power or lighting designations SHALL be determined with agreement of CD521 and site personnel.
All electrical equipment which is served by or which contains multiple sources of power SHALL comply with NFPA 70 standards to identify both disconnecting means.
Panels with multiple access points SHALL be labeled at each access point.
Breakers for remote shutdown equipment that must be operated from the local breaker SHALL have an additional label fabricated from luminescent or reflective tape material to aid in identification during blackout or remote shutdown.
Emergency Power Off (EPO) buttons for remote emergency shutdown of equipment SHALL have an additional label fabricated from luminescent or reflective tape material to aid in identification during blackout or remote shutdown.
12.1. Color Identification.
Color coding assignment for electrical system and component labeling SHALL be according to the following table:
System Field Color Text Color Fire Detection and Alarm, EPO
Systems Red White
Leak Detection System Lite Blue Black
Non-Critical General Electrical Equipment & Distribution Black White
Critical “A” Bus Electrical Distribution White Black
Critical “B” Bus Electrical Distribution Blue White
Emergency Generator Electrical Distribution White Red
Sample of compliant IT power whip label, minus protective clear label cover
System & Component Identification, Marking, and Labeling
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Joint “A” and “B” Bus Electrical Distribution (Static Switches, etc.) Brown White
The following colors are reserved and SHALL not be used for electrical field color labeling purposes:
Green Yellow Orange Pink
Gray Tan Black Purple
12.2. Primary Electrical Distribution (Bus Ducting, Main Distribution Panels (MDPs), Main Switch Boards (MSBs), Motor Control Centers (MCCs), and similar).
Bus duct labels SHALL be installed at the source end in every room it passes through. The identification for the bus duct SHALL include the floor level and column location associated with each end of the bus duct.
Both the primary electrical distribution equipment as well as the individual motor controls, buckets, breakers, or similar shall be labeled in these types of systems. See Appendix 3 (Labeling Examples) for a visual interpretation.
Primary electrical distribution panels downstream of a UPS shall be referred to as UPPs. UPPs typically feed PDUs and may also supply additional downstream UPPs.
Label contents for Bus Duct, MCC, & Primary Electrical Distribution Panels SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN)
Line 3: System voltage(s)
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
Line 5: Noun description (component “Common Name”)
Line 6: Associated Drawing Number (optional)
12.2.1. Primary Electrical Distribution Compartments
MDP/MSB/MCC compartments (a.k.a. buckets or similar) SHALL be separately labeled with a compartment identifier (see Appendix 3). This identifier SHALL include a number indicating the column location from left to the right and a letter indicating the row location from top to bottom.
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
BLDG857 EPS
MCC-D-1
480V
From SWGR-D-4
“MCC D”
MONT-E-004
BLDG308 UPS
UPP-A-3
480V
From USWGR-A-2
“UPS A MDP 3”
MECH-E-014
System & Component Identification, Marking, and Labeling
Page 18 of 28 Version Date: 8 November 2011
All MDP/MSB/MCC compartments and all circuit breakers not providing power to a load SHALL be labeled “Spare” and compartments not equipped SHALL be labeled “Blank.”
Label contents for compartments in MDP, MSB, MCC, Switchgear and Bus Duct Switches SHALL include:
Line 1: Leave blank
Line 2: Compartment Identifier (column & row designation, e.g., 6A). Bus Duct Switches/spaces SHALL be labeled numerically 1 through 99, etc.
Line 3: Noun description (component “Common Name”) associated with the compartment e.g., “AHU 10”
Line 4: Additional Equipment Data (optional)
Line 5: Leave blank
Line 6: Associated Drawing Number for supply source (optional)
12.3. Secondary Voltage Distribution Equipment (Distribution Panels, PDUs, RDCs).
All power distribution (electrical) panels that distribute 208Y/120V power (and 400/230V power for European theater distribution schemes) SHALL have associated panel schedules physically located at each panel. This includes but is not necessarily limited to PDUs, RDCs, non-technical electrical distribution panels, and lighting distribution panels. The information on these schedules SHALL cross-reference directly with these labeling standards; including that Equipment Identification Numbers (EIN) or IT equipment rack zone and rack number (and similar for other equipment) shall be identified in the description field for each breaker.
Section “Configuration Management – PDU Documentation) in O&M Module 4 (Operate datacenter electrical systems) from TIM (CSI 360-95-3A) includes a sample power panel schedule in .xls format.
The guidance therein is mandatory for documenting power panel circuit assignments in this context.
Individual circuit breakers inside electrical panels SHALL be physically numbered adjacent to each breaker, corresponding to the panel schedule. Panel schedule information SHALL not be written next to the breaker locations themselves.
Label contents for PDU components SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN)
Line 3: System input voltage
3B “CT-1 Fan”
EF-12
Line 3
Line 4
Line 5
Line 6
Line 2
System & Component Identification, Marking, and Labeling
Page 19 of 28 Version Date: 8 November 2011
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
RDC EINs SHALL utilize the fourth Sequence Number field to indicate which PDU they are associated with.
Label contents for RDC components SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN) with 4th Sequence Number
Line 3: System input voltage
Line 4: Parent EIN(s), e.g. ‘From PDU-A-1’
Line 5: Subfeed circuit breaker number(s)
Distribution panel EINs may utilize the fourth Sequence Number field to indicate which upstream distribution panel they are associated with, when there is more than one level of distribution panel in the secondary distribution. Distribution panels fed from MDPs/MSBs shall not utilize the fourth Sequence Number.
Label contents for DP components (refer to Appendix 3) SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN) (with 4th Sequence Number if appropriate)
MECH-E-014
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
B200 CPS
PDU-A-11
480-208/120V
From UPP-A1/ckt4
“PDU A-11”
MECH-E-014
B200 CPS
PDU-B-11
480-208/120V
From UPP-B2/ckt 1
“PDU B-11”
STLO-E-007
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
B120 CPS
RDC-A-11-3
208/120V
From PDU-A-11
SUBFEED 3
MECH-E-014
B120 CPS
RDC-B-11-2
208/120V
From PDU-B-11
SUBFEED 2
STLO-E-007
System & Component Identification, Marking, and Labeling
Page 20 of 28 Version Date: 8 November 2011
Line 3: System input voltage
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
12.4. Transformers, UPS Equipment, Switchgear, & Contactors.
Labeling contents for power transformation and switching equipment SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN)
Line 3: System voltage(s)
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
Line 6: Associated Drawing Number (optional)
Line 2
Line 3
Line 4
Line 5
Line 6
BLDG308 UTL
XFMR-UT-2
13720V-480V
From Utility A Feeder “Main Xfmr A”
MECH-E-012
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
B451 EPS
DP-C-4
208/120V
From MDP-C-1
“PP R12”
B451 EPS
DP-C-4-2
208/120V
From DP-C-4
“PP R12-2”
STLO-E-007
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
BLDG308 UPS
UPS-A-1
480V
From SWGR-A-1 “UPS Module A1”
MECH-E-014
BLDG308 UPS
USWGR-B-2
480V
From UPS-B-1,2,3,4 “UPS B Static Switch”
Page 21 of 28 Version Date: 8 November 2011
12.5. Emergency Power Generation Equipment.
Label contents for Generator distribution components SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN)
Line 3: System voltage(s)
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
Line 6: Associated Drawing Number for supply source (optional)
Line 4
Line 5
Line 6
Line 2
BLDG308 UPS
BDS-B-3
480V
From BAT-B-3 “Batt String B3 Disconnect”
STLO-E-007
BLDG308 EPS
CONT-C-2
277V
From DP-C-20 “Lighting Contactor 2”
MECH-E-014
Line 1
Line 3
Line 4
Line 5
Line 6
Line 2
BLDG857 EPS
SWGR-C-2
480V
From EG-B-1,2,3 “Gen B Switchgear”
MONT-E-014
BLDG 857 EPS
EG-B-2
480V n/a
“Generator B2”
MONT-E-007
System & Component Identification, Marking, and Labeling
Page 22 of 28 Version Date: 8 November 2011
12.6. Raceways, Light Switches, Receptacles, and Emergency Lighting Fixtures.
Raceway systems SHALL be identified at the points of origin and destination. Identification SHALL also be made where entering and leaving junction and terminal boxes where more than one circuit is present. When only one circuit is present, label the conduit or the box (not the raceway or junction box cover).
For non-technical power, light switch and receptacle covers SHALL have labels consisting of machine-generated 1/2-inch width plastic tape with 1/4-inch letters showing supplying panel and circuit number.
Emergency light fixtures (power supplied from emergency panels, battery-backed, or similar) SHALL be identified by a 1” red circular sticker on the underside of the fixture, such that all emergency light fixtures can be easily visually identified when walking through the area.
Label contents for Raceways SHALL include:
Line 1: Building and System (optional)
Line 2: Equipment Identification Number (EIN)
Line 3: Voltage
Line 4: Parent EIN, e.g. ‘From MDP-A-1’
Line 5: Child EIN, e.g. ‘To MDP-A-2’
Line 4
Line 5
Line 6
Line 2
BLDG103 EPS
RW-B-1
480V
From XFMR-B-2 To MCC-B
System & Component Identification, Marking, and Labeling
Page 23 of 28 Version Date: 8 November 2011
Appendix 1. System Abbreviations & Associated Data.
The following is a list (not all inclusive) of System Abbreviations and associated abbreviations. Contact DISA Facilities Engineering to add new System Abbreviations.
System Abbreviation
Building BLDG
Building Structures BS
Chillers System CHS
Chilled Water System CHWS
Condenser Water System CWS
Computer Room Air Conditioning CRAC
Critical Power System CPS
Domestic Cold Water System DCW
Essential Power System EPS
Fire Protection System FPS
HVAC HVAC
Public Address System PAS
Uninterruptable Power System UPS
Utility UTL
Ventilation Exhaust VEXH
Ventilation Supply VSUP
System & Component Identification, Marking, and Labeling
Page 24 of 28 Version Date: 8 November 2011
Appendix 2. System & Component Designators.
These lists are intended to be complete. Submit suggestions for changes or additions to the Component Designator list through the Change Suggestion Form (CSI 360-95-3CSF) detailed in Appendix A of the Facilities Standards. Alternative Component Designators or uncoordinated modifications to this list are not authorized.
The following is a list of System Designators (the second field of the EIN).
System Designators
A A Bus DW Domestic Water
AB Dual Bus (Critical A & B Busses) FL Floor
B B Bus FP Fire Protection
BL Building RM Room
C C Bus (Essential) UT Utility
CH Chilled Water VS Ventilation Supply
CW Condenser Water VX Ventilation Exhaust
D D Bus (Essential) The following is a list of Component Designators (the first field of the EIN). The intent of this list is to provide guidance and consistency in labeling of structures, systems and components. Equipment Identifiers SHALL be defined on a legend for new projects.
Note: Changes in this appendix must be reflected in the CD521 UNIFORMAT II Levels 4 & 5 Classification System (an attachment of CSI360-95-3, DISA CSD Facilities Standards) as well.
Component Designators
ACU Air Conditioning Unit (see also FCU, RTU) HWS Hot Water Supply (generally domestic)
AHU Air Handling Unit HX Heat Exchanger (all types)
BAT Battery String (UPS System) JB Junction Box
BDD Backdraft Damper LP Lighting Panelboard
BDS Battery Disconnect Switch (UPS System) LPS Lightning Protection System
BFP Back-Flow Preventer MCC Motor Control Center (essential)
MDP Main Distribution Panel (utility)
BMS Battery Monitoring System (UPS System) MSB Main Switch Board (or Gear) (essential)
BO Boiler P Pump (see also CHWP, CWP, HWP) (generic)
C Compressor PDU Power Distribution Unit
CAV Constant Air Volume System (n/a) Power Panelboard (see also DP)
(n/a) Cooling Coil (see HX) PL Plenum
CF Chemical Feed System (n/a) Pressure Relief Valve, Pressure Reducing Valve (see V)
System & Component Identification, Marking, and Labeling
Page 25 of 28 Version Date: 8 November 2011
CH Chiller (generic, including DX) (n/a) Preheat Coil (see HX)
CHR Chilled Water Return RB Rotating Beacon
CHS Chilled Water Supply RD Refrigerant Detection System
CHWP Chilled Water Pump RDC Remote Distribution Cabinet
CONT Contactor RF Return Fan
CRAC
Computer Room Air Conditioner (includes subset Computer Room
Air Handlers/CRAH, not a Component Designator Type)
(n/a) Reheat Coil (see HX)
CRU Condensate Return Unit RMP Remote Monitoring Panel (generic)
CT Cooling Tower (n/a) Roof Top Unit (DX unit, subset of CH)
(n/a) Check Valve (see V) (n/a) Rotary Valve (see V)
CWP Condenser (Cooling Tower) Water Pump RW Raceway
CWR Condenser (Cooling Tower) Water Return SD Smoke Damper
CWS Condenser (Cooling Tower) Water Supply SF Supply Fan
DH Duct Heater SBM Static Bypass Module (UPS system)
DP Distribution Powerboard (see also PP) STS Static Transfer Switch
EF Exhaust Fan SUB Substation
EG Emergency Generator (n/a) Solenoid Valve (see V)
ELEV Elevator SWGR Switchgear (panel or standalone, including automatic transfer switches (ATSs) and disconnects)
ELP Emergency Lighting Panel T Thermostat
EPO Emergency Power Off TGEN Temporary Generator
F Furnace TUPS Temporary UPS
FA Fire Alarm UH Unit Heater
FACP Fire Alarm Control Panel UPS Uninterruptable Power System
(n/a) Fan Coil Unit (subset of ACU) USWGR Uninterruptable Power System Switchgear (panel or standalone, including automatic transfer switches (ATSs) and disconnects)
FD Fire Damper UPP Uninterruptable Power System Power Panel (critical)
HUM Humidifier V Valve (generic)
(n/a) Heating Coil (see HX) VAV Variable Air Volume (system)
HD Hydrogen Detection System VFD Variable Frequency Drive
(n/a) Hand Valve (see V) VSD Variable Speed Drive
System & Component Identification, Marking, and Labeling
Page 26 of 28 Version Date: 8 November 2011
HWP Hot Water Pump XFMR Transformer
HWR Hot Water Return (generally domestic)
*Disconnects will be placed in the BDS, SWGR, or USWGR categories, as appropriate.
System & Component Identification, Marking, and Labeling
Page 27 of 28 Version Date: 8 November 2011
Appendix 3. Labeling Examples.
Switchgear/Motor Control Labeling Example
**Note: Contents of labels in this Appendix may not be compliant with other guidance. Use these examples as informational for location (layout) requirements for equipment only.
1A
1B
1CL
1D
1E
1CR
2A
2B
2C
2D
3A
4A
5A
3B
4B
3D
4C
5F
3C
5B
5C
5E
5DL
5DC
5DR
1A
MAIN
EMCC-B-1
BLDG. 103
EMCC-B-1
1-D-12 480V
ESWGR-B-1
MTR CONT CTR
STLO-E-002
3D
COND PUMP
P-A-1
Page 28 of 28 Version Date: 8 November 2011
Switchboard/Panelboard Labeling Example
**Note: Contents of labels in this Appendix may not be compliant with other guidance. Use these examples as informational for location (layout) requirements for equipment only.
EDP-A-2
1-E-7
480/277V
ESWGR-A-1
NOTES:
• Labels shall be located to eliminate any possible confusion as to the item being ident if ied and shall not obscure other items nearby.
• Label colors shall provide a high contrast betw een characters and background to enhance legibility. Preferably w hite letters on black background.
• Label size is approximate.
• Labels shall be permanent ly at tached and designed to w ithstand w ear, erosion and corrosion.
• Labels shall be mounted in such a w ay as to preclude accidental removal.
Sw itchboard
CIRCUIT IDENTIFIER
Bldg. 103
STLO-E-009
ERP-A-5
2-B-5
208/120V T3 2-B-5
Panelboard Bldg. 891
OGDN-E-017
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