VA 26 55 71-2010 MEDICAL AND SURGICAL LIGHTING FIXTURES.pdf

1、09-10 26 55 71 - 1 SECTION 26 55 71 MEDICAL AND SURGICAL LIGHTING FIXTURES SPEC WRITER NOTES: 1. Delete between / - / if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. 2. The A/E should coordinate with the Architect, Stru

2、ctural Engineer, and Mechanical Engineer to ensure that the ceiling, structure, and ceiling cavity are suitable and free of obstructions for surgical light installation. 3. The A/E shall verify with VHA the fixture type(s) desired for the operating room(s) affected by the project. 4. The A/E should

3、determine the need for spare conduits for future addition of arm-mounted video cameras or monitors. PART 1 - GENERAL 1.1 DESCRIPTION This section specifies the furnishing, installation, and connection of the surgical lighting fixtures. 1.2 RELATED WORK /A. Section 13 05 41, SEISMIC RESTRAINT REQUIRE

4、MENTS FOR NON-STRUCTURAL COMPONENTS: Seismic supports and lateral bracing for light fixtures./ B. Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS: General electrical requirements and items that are common to more than one section of Division 26. C. Section 26 05 26, GROUNDING AND BONDING

5、 FOR ELECTRICAL SYSTEMS: Requirements for personnel safety and to provide a low impedance path for possible ground fault currents. 1.3 QUALITY ASSURANCE Refer to Paragraph, QUALIFICATIONS, in Section 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS. 1.4 SUBMITTALS A. Submit in accordance with Sec

6、tion 26 05 11, REQUIREMENTS FOR ELECTRICAL INSTALLATIONS. B. Shop Drawings: 1. Clearly present sufficient information to determine compliance with drawings and specifications. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 55 71 - 2 2. Incl

7、ude electrical ratings, dimensions, mounting details, materials required clearances, terminations, wiring and connection diagrams, lubrication, ballasts, lenses, louvers, lamps, and controls. 3. Include photometric data for surgical lighting fixture Types A, B, C, and D from an independent testing l

8、aboratory. The photometric report shall include data to show that the surgical light fixtures are in full compliance with requirements for illumination level, shadow reduction, beam heat, and color temperature. Where testing procedures or parameters are specified, the report shall indicate the surgi

9、cal light fixtures were tested to those criteria. C. Manuals: 1. When submitting the shop drawings, submit companion copies of complete maintenance and operating manuals, including technical data sheets, wiring diagrams, and information for ordering replacement parts. a. Wiring diagrams shall have t

10、heir terminals identified to facilitate installation, operation, and maintenance. b. Wiring diagrams shall indicate internal wiring for each item of equipment and the interconnections between the items of equipment. c. Provide a clear and concise description of operation including all details requir

11、ed to properly operate the equipment and system. d. Approvals will be based on complete submissions of manuals together with shop drawings. 2. Two weeks prior to final inspection, submit four copies of a final updated maintenance and operating manual to the /Resident Engineer/ /COTR/. a. The manual

12、shall be updated to include any information necessitated by shop drawing approval. b. Complete “As Installed“ wiring and schematic diagrams shall be included, showing all pieces of equipment and their interconnecting wiring. c. Show all terminal identification. d. Include information for testing, re

13、pair, troubleshooting, lubrication, assembly, disassembly, and recommended maintenance procedures and intervals. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 55 71 - 3 e. Provide a replacement parts list with current prices. Include a lis

14、t of recommended spare parts, lamps, tools, and instruments for testing and maintenance. D. Certifications: Two weeks prior to final inspection, submit four copies of the following to the /Resident Engineer/ /COTR/: 1. Certification by the manufacturer that the materials are in accordance with the d

15、rawings and specifications. 2. Certification by the contractor that the equipment has been properly adjusted, installed, and tested. 1.5 APPLICABLE PUBLICATIONS A. Publications listed below (including amendments, addenda, revisions, supplements, and errata) form a part of this specification to the e

16、xtent referenced. Publications are referenced in the text by designation only. B. Illuminating Engineering Society of North America (IESNA): RP-29-06 . Lighting for Hospitals and Health Care Facilities HB-9-00 Lighting Handbook Reference and Application C. National Fire Protection Association (NFPA)

17、: 70-08 National Electrical Code (NEC) 99-05 Health Care Facilities D. Underwriters Laboratories, Inc. (UL): 60601-1 Medical Electrical Equipment, Part 1: General Requirements for Safety 1598-08 Luminaires PART 2 - PRODUCTS 2.1 SURGICAL LIGHTING FIXTURES, GENERAL A. Fixtures shall be in accordance w

18、ith UL 1598, NEC, NFPA 99, and IESNA RP-29, as shown on the drawings and as specified. B. Fixtures shall be complete, grounded, fungi-proof, adequately enclosed for asepsis, and designed for use in human operating rooms by a manufacturer that regularly produces such fixtures. C. Fixtures shall be su

19、pplied complete with suspension systems, lightheads, transformers, and controls. Components shall be products of a single manufacturer. D. Suspension components shall not flex during normal use. Articulation of the suspension to any position in its range shall maintain the lighthead at that point wi

20、thout drift. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 55 71 - 4 E. All exposed surfaces shall be free of burrs and sharp edges. Finishes on all exposed surfaces shall be specifically designed to resist scuffing and deleterious effects

21、 of the use of hospital cleaning materials. F. Except for finished aluminum, stainless steel, chrome, nickel and brass surfaces, all metal surfaces shall be thoroughly cleaned and painted at the factory with a corrosion-resistant primer and not fewer than two coats of lacquer or baked enamel finish.

22、 G. Maximum leakage current of each lighthead and its respective control shall not exceed 100 microamperes as measured in accordance with UL 60601-1. SPEC WRITER NOTE: Select type(s) appropriate for the project. 2.2 SURGICAL LIGHTING FIXTURE TYPES A. Single Lighthead and Pivot Arm, Single Point Susp

23、ension (Type A): Shall be a surgical light system of the single point suspension type with a single lighthead unit, mounted from a pivotal arm assembly. Lighthead shall rotate within a clearance circle of 142.67 in 3624 mmto 257.63 in 6544 mm, depending on light head site horizontal arm selection. C

24、enter of lighthead adjusted vertically from 46.85 in 1190 mm to 88.58 in 2250 mm above the floor. B. Dual Lightheads and Pivot Arms, Single Point Suspension (Type B): Shall be a major light system incorporating two identical lighthead units, each mounted on an independent arm assembly. The arm assem

25、blies shall pivot around the same axis. Lighthead shall rotate within a clearance circle of 142.67 in 3624 mm to 257.63 in 6544 mm, depending on light head site horizontal arm selection. Center of lighthead adjusted vertically from 46.85 in 1190 mm to 88.58 in 2250 mm above the floor. SPEC WRITER NO

26、TE: Types C and D shall only be used in the animal operating rooms in animal research service facilities. Edit cross-referencing and update paragraph as required. C. Single Lighthead and Pivot Arm, Track Suspension (Type C): Shall be the same as specified in Paragraph (A), except that in lieu of sin

27、gle point mounting, the pivotal arm assembly shall be mounted on a movable carriage to a track / 106.3 in 2700 mm long /, except where otherwise indicated on the drawings, at the ceiling. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 55 71

28、 - 5 D. Dual Lightheads and Pivot Arms, Track Suspension (Type D): Shall be the same as specified in Paragraph (C), except that it shall be an installation of two track and lighthead assemblies. SPEC WRITER NOTE: Select light source from choices below. 2.3 LIGHTHEAD A. Lighthead Housing: The lighthe

29、ad housing shall be not greater than 30 in 760 mm in diameter. B. Light Source: 1. Light source shall be /tungsten halogen/ /gas discharge/ / light-emitting diode (LED)/. /Tungsten halogen or gas discharge may consist of a single primary lamp with normally de-energized secondary lamp that illuminate

30、s within 0.5 second of primary lamp failure, or a minimum of five simultaneously energized lamps./ /Light-emitting diodes consist of multiple LEDs within a single head./ 2. Light source shall have the following characteristics and shall comply with IESNA RP-29: a. Minimum illuminance of 10,000 foot-

31、candles, measured at 40 in 1016 mm from the light source. b. Corrected color temperature of between 4000 and 4500 degrees Kelvin. c. Radiant heat energy in the light beam 42 in 1070 mm below the lighthead shall not exceed 25,000 microwatts per square cm at maximum intensity in the light pattern. d.

32、Color Rendering Index (CRI) shall be a minimum of 92, as measured on the ASTM E 308 chromaticity diagram. /e. Tungsten halogen lamp life shall be an average of 1000 hours./ /Gas discharge lamp life shall be an average of 5000 hours. /Light-emitting diode life shall be an average of 25,000 hours./ C.

33、 Focus and pattern size shall be adjustable either by raising and lowering the unit, and/or through operation of focus controls which change the pattern size without movement of the unit. The smallest pattern size in the focal range shall be not greater than 8 in 200 mm in diameter. D. Shadow Reduct

34、ion: The unit shall provide minimum of 10% of the unshadowed level inside and at the bottom of a tube 2 in 50 mm in Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 55 71 - 6 diameter and 3 in 75 mm long, finished flat black inside from a dis

35、tance of 42 in 1050 mm when the beam is obstructed by a disc 10 in 250 mm in diameter, 23 in 575 mm above the operating table and normal to the axis of the tube. The testing meter shall use a 1.5 in 38 mm diameter cell. E. Control Handle: A surgeons control handle shall be located beneath each light

36、head and shall be easily removable for sterilization. Mounting point must also accommodate alternate third-party disposable handle adapters. 2.4 CONTROLS A. Provide a wall-mounted intensity control unit for each lighthead and the required backbox for the intensity control unit as required by the man

37、ufacturer. SPEC WRITER NOTE: Include LED dimming range when LED sources are used. B. The control unit shall provide either a continuously variable range from the maximum foot-candle rating of the light source down to no greater than 5% of this value, or shall be adjustable within this range with a m

38、inimum of five discrete steps. /LED dimming range shall be 100% to 30%./ C. The minimum wall control box functions shall include an on-off switch, intensity adjustment, and endoscopic light actuation located outside the sterile field. Controls shall move in a free, smooth, and silent manner without

39、drifting, regardless of position. D. The controls shall have adequate radio frequency suppression appropriate for applications where sensitive electronic medical equipment is used. E. Each unit shall be readily removable from its wall box for servicing or replacement, utilizing electrical plug conne

40、ctions. F. In the event of a control unit fault, the unit shall default to maximum intensity of illumination. G. Where light source is a single primary lamp with automatic secondary lamp, controls shall include a “reserve lamp in use” indicator or similar. 2.5 SUSPENSION A. Vertical arm members and

41、suspension tubes: Shall be constructed of high-strength steel or heavy-gauge aluminum for rigidity. Coordinate vertical lengths with the ceiling height of the room where each fixture Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-09-10 26 55 71 - 7

42、will be installed to provide the proper positioning of the lighthead or lighthead arm assembly within the units range of vertical mobility as recommended by the manufacturer. Attach the suspension to structure with bolts and metal inserts (power-set fasteners will not be accepted) as required by the

43、 manufacturer and/or structural calculations. B. Horizontal Arm Assemblies: 1. Each lighthead shall be mounted from a two-section, essentially horizontal, counter-balanced arm assembly which pivots in either direction 360 degrees continuously about the ceiling attachment tube axis, and a minimum of

44、350 degrees about its midpoint, permitting positioning of the lighthead assembly approximately under the ceiling axis or outside of the sterile area. In systems with multiple arms attached to the same mount, each individual arm and lighthead shall operate independently and be mounted such that they

45、can be positioned outside the sterile area, bypass each other, and be raised, lowered, and rotated. In the multi-arm installation, at least one of the lightheads shall be positionable directly under the ceiling axis. 2. The lower arm member shall pivot vertically to permit raising and lowering the l

46、ighthead. It shall be possible to limit the travel such that the electrical components of the lamp assembly (or assemblies) will not adjust below 59 in 1500 mm from the finished floor. When maintained in the horizontal position, the lighthead shall be raisable to a minimum of 86.61 in 2200 mm above

47、the finished floor, as measured to the lowest point of the optical assembly (lens or reflector) from which the final light beam is emitted. The component parts of the joint between the upper and lower support arms shall be at least 80 in 2000 mm above the floor. 3. The lighthead shall be attached to

48、 the lower arm assembly through a dual-bow pivot system that allows lighthead rotation in all directions without the need to rotate the suspension arms. 4. The clearance circle of each lighthead about its pivot center shall be at least 140 in 3550 mm in diameter. C. Ceiling Mount Assembly, Single Po

49、int Suspension (Types A and B): The mounting assembly shall support the complete fixture unit by attachment to the structural ceiling. Vertical portions of the mount assembly between the structural ceiling and a suspended ceiling shall be Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,