The code regulates the construction, installation, quality of materials, location, and operation of equipment and systems using electricity in the City of Seattle's built environment. You need to Subscribe to continuing reading. The images below demonstrate hydraulic elevators and traction elevators and show the different locations where the need for sprinklers must be evaluated. With this comes deteriorating service and significantly higher phone line costs. IAEI News Magazine. Selective coordination is defined by the NEC as: Localization of an overcurrent condition to restrict outages to the circuit or equipment affected, accomplished by the selection and installation of overcurrent protective devices and their ratings or settings for the full range of available overcurrents, from overload to the maximum available fault current, and for the full range of overcurrent protective device opening times associated with those overcurrents.. Loss of voltage to the control circuit for the disconnecting means shall cause a supervisory signal to be indicated at the control unit and required remote annunciation. Chapter 30 Elevators and Conveying Systems. Such fast elevators could be built, but the New York City building code limited elevator speeds to just 700 fpm. In some cases, it may require a means to test the shunt trip operation or have one contact operate the shunt trip of more than one elevator. | Chinese/, License forms, permits, plan review and local governments, Residential contractors, remodelers, roofers. A separate 120VAC, 15A circuit is required for cab lighting and accessories, and it must have its own local disconnect and OCPD in the equipment room as well. The next section, 620.36, concerns different systems in one raceway or traveling cable. xAD 'fjhD&5}[/FBznQ5\R1XwRJ9VQJq !jOj13G^J9[k/:vul c% With the elevator car at the bottom landing, it is the length of cable as measured from the point of suspension in the hoistway to the bottom of the loop. Because they need to move and flex, traveling cables are not required to be in a raceway. endobj MECHANICAL CODE. The conduit alone can't act as the grounding means. If you specify a rescuvator, you must also specify a disconnect switch with an auxiliary contact that opens when the disconnect arm moves to the open position, but stays closed when the OCPD trips. In fact, an entire elevator system for a project is most often designed and specified by the architect who has little understanding of the electrical distribution system. All rights reserved. If this is not done and the available fault current exceeds the elevator controller SCCR, other solutions to reduce fault current must be reviewed or equipment changes and field evaluations may be needed. This standard also covers maintenance and testing requirements for existing elevators. A raceway that comes loose on the inside of a hoistway could catch on a moving car, causing immense damage and hazard to users. If your specifications require a vent at the top of the shaft for venting smoke, you must provide a key switch with a pilot light to control that vent. The electrical system designer needs to communicate this information to the person responsible for specifying the elevator controller, which is most often the architect. %PDF-1.6 % They are as follows: 1. Section 620.62, Selective Coordination, is central to multi-elevator installations and must be closely observed. There are a few things regarding your NEC elevator code that you will want to check: (Source). NOTE: It is important to check your state building codes as well, as they may have further elevator code requirements. City of Los Angeles Elevator Code (Chapter 9, Article 2 of the Los Angeles Municipal Code) which is based on the ASME A-17.1-1971 and the California Code of . It states an elevator is permitted to be run by an emergency or standby power system. The Safety Standard for Belt Manlifts is the ASME A90.1-2015. Mobile, AL 36606 USA Chapter 28 Mechanical Systems. pipes, ducts) removed from the elevator space and hoistway (ASME A17.1 Section 2.8), Fire extinguisher provided in the machine/control room (ASME A17.1 Rule 8.6), Normally operable door closer with self-locking lockset from within machine room provided (ASME A17.1 Rule 2.7.3.4), Machine/control room provides 19 foot candles of illumination at floor level (ASME A17.1 Rule 2.7.9), Elevators located on an accessible route and comply with ASME A17.1 Safety Code for Elevators and Escalators- freight elevators not included (ADA 4.10.1), Each elevator car is equipped with an automatic self-leveling feature independent from the elevator operating device that brings cars to floor landings 1/2 under rated loading to zero loading conditions (ADA 4.10.2), Elevator call buttons are centered at 42 above the floor (ADA 4.10.3), Elevator call buttons have visual signals that notify when a call is both registered and answered (ADA 4.10.3), Elevator call buttons are no smaller than (ADA 4.10.3), Elevator call buttons are raised/flush (ADA 4.10.3), Any objects below elevator call buttons do not project into the lobby more than 4 (ADA 4.10.3), There is a visible and audible signal at every hoistway that communicates which elevator will be answering the call (ADA 4.10.4), Audible signals: either sound once to indicate up and twice to indicate down, or use verbal announcements that state Up and Down, Hall lantern fixtures center lines are located at least 72 above the floor, Raised and Braille floor indications are provided on all elevator hoistway entrances on both jambs (ADA 4.10.5), Elevator doors open and close automatically, included with an automatic device that stops and reopens car and hoistway door if door is obstructed by object or person without requiring contact (ADA 4.10.6), Door devices remain effective for at least 20 seconds, The minimum time for elevator doors to remain fully open in response to a car call is 3 seconds (ADA 4.10.8), Space is provided for a wheelchair user to enter, reach controls and exit the elevator car (ADA 4.10.8), Cab length is at least 51 with at least 54 from the back of the cab to the face of the door, Cab width for side opening doors is at least 68, Cab width for center opening doors is at least 80, Floor surfaces are slip resistant (ADA 4.10.10), If carpet is used it has pile thickness or lower and all exposed edges are fastened with carpet edge trim, At least 5 foot candles are used for car controls, platform, car threshold and landing sill (ADA 4.10.11), Meets car control panel requirements (ADA 4.10.12), Control buttons are raised/flush and are at least , Control buttons are designated by Braille, Floor buttons for side approach are 54 or lower above finish floor, Floor buttons for front approach are 48 or lower above finish floor, If car has center opening doors, controls are located on front wall, If car has side opening doors, controls are located on front wall next to door or side wall, A visual indicator is provided above the cars control panel to relay the position of the elevator within the hoistway with corresponding numbers that illuminate and an audible signal as each floor is passed or stopped on (ADA 4.10.13), The highest operable part of an elevators two-way emergency communications system is 48 or lower from the floor of the elevator car (ADA 4.10.14), The elevators two-way emergency communications system is established by a raised/recessed symbol and lettering adjacent to the device (ADA 4.10.14), Elevator machine/control room venting has appropriate fire dampers in penetrations, Depending on the location, smoke dampers are installed in machine/control room venting, If floor is one or more stories above or below the level of exit discharge, a two-way communication system is provided at the landing serving each elevator or bank of elevators, Ground-fault circuit interrupter (GFCI) protected, receptacle outlets are provided in the pit and the machine/control room (NEC 620.23 ( c ), NEC 620.4 ( c ), NEC 620.85), Car lights and receptacles are on a 15AMP separate branch circuit with a lockable over current protecting device located in the machine room (NEC 620.22, NEC 620.53), Over current protecting device is externally operable, fused/thermally protected, lockable disconnecting means (NEC 620.22, NEC 620.53), There is a separate branch circuit for the machine room light and receptacles (NEC 620.23), There is a separate branch circuit for the pit light and receptacle with at least 10 foot candles (NEC 620.24). . With respect to such Occupancy Groups B, E and R-1, the following equipment, where such equipment is required by this code, shall be provided with an emergency power system: Exit signs and means of egress illumination required by Chapter 10; Elevator car lighting; We want to make it easy for you- here is a national elevator code checklist that covers elevator requirements, looking at ADA, ASME, IBC, and NEC. NEC Article 620 Part V, Traveling Cables, is driven by two major issues. CHAPTER 32. See our free download with an in-depth look at elevator communication codes and easy elevator phone testing methods >>, Kings III of America Announces CEO Transition, Apple iPhone Setting Ties Up 911 Call Centers, Types of Emergency Phones: Glossary and Resources, Kings III Makes The Dallas Morning News Top 100 Places to Work List Becoming a 3x Winner, Best Practices for Using Video Surveillance on Your Property, Arcline Investment Management to Acquire Kings III of America, Saving Labor and Service Costs During Inflation, How Your Life Safety Devices are Impacted by Landline Technology Phaseout, A clean and dry elevator pit and machine/control room provided (ASME A17.1 Rule 2.1.2), Machine/control room meets manufacturers requirement of preserving ambient temperature control and humidity (ASME A17.1 Rule 2.7.9), Elevator floor covering installed with appropriate smoke and flame spread (ASME A17.1 Rule 2.14.2), Functioning two-way communication provided (ASME A17.1 Section 2.27), Elevator calls directed to a 24-hour live monitoring service that is able to respond to emergencies (ASME A17.1 Section 2.27), Two-way message display in cab for hearing and/or speech impaired, Means for authorized personnel to view video of passengers anywhere in cab, Means activiated by emergency personnel to change cab message to indicate help is on-site if over 60 ft of travel, Smoke detectors located in every lobby and in the elevator machine room, with lobby detectors zoned- no built-in time delay, verification not permitted (Both ASME A17.1 Section 2.27 and, Flashing hat signal is provided in the elevator in the event that a smoke detector is activated (Both ASME A17.1 Section 2.27 and, Any equipment/accessories unrelated to elevator use/function/operation (i.e. Overcurrent devices protecting these branch circuits are to be located in the machine room or similar location. He participates in IEEE (Senior Member) with Industrial and Commercial Power Systems, NEMA (member of the Codes & Standards Committee), NFPA (committee member for NEC CMP-13 and NFPA 79), UL (508/60947 and 508A) and IAEI activities. \ A&&'70 Sk*EZfm}1csX)9R5R8jW5J)+5s!?>)%Xv}/)_x>j@WCw[ In addition, the shunt-trip voltage must also be monitored by the Fire Alarm System. 0 The many codes and guidelines that regulate the electrical design of an elevator can seem overwhelming, and dealing with the electrical inspector, elevator inspector, and Fire Marshal can be even more intimidating. 45.55.184.53 16 0 obj endobj For platform lifts and stairway chairlifts, the duty is intermittent. endobj Pay attention to the following items, especially in winter weather, to help keep your elevators running safely and smoothly. You'll be responsible for specifying the items related to the fire alarm and some controls, as well as supplying lighting and power to the equipment room and elevator pit. All of these options and special wiring can be challenging depending upon the location of the shunt trip circuit breaker as well as who has responsibility for providing these additional options. The branch circuit is to be protected by an overcurrent device located in the machine room, control room/machinery space or control space. If elevators are supplied by the emergency, legally required standby or critical operation power systems, then selective coordination is required per the 2017 NEC in 700.32, 701.27 or 708.54. Section 725.45 concerns the location of overcurrent devices and provides for feeder and branch-circuit taps, transformer primary side overcurrent device location and overcurrent device location at the input side of electronic power sources. Terms of Use Top of Shaft 14 0 obj This section also adds emergency lighting to the list of elevator backup power requirements. Standby power shall be provided for elevators and platform lifts as required in Sections 1009.4.1, 1009.5, 3003.1, 3007.8 and 3008.8. Norm Nelson, who has served as Chief Operating Officer since 2018, will succeed Mr. Mason as CEO. The light switch for the equipment room must be adjacent to the entrance door on the latch side. [emailprotected] But by understanding how these items fit together and what purpose they serve, you can have a successful project. Elevator code compliance isnt necessarily a glamorous part of your job. While they certainly provide a convenient and accessible means for traveling up and down through a building they also create vertical openings in a building, increasing the potential for the spread of fire and smoke. P Escalators, moving walks, conveyors, personnel hoists and material hoists shall comply with the provisions of Sections 3004.2 through 3004.4. Be sure to provide a horn/strobe alarm in large equipment rooms because they can be noisy, isolated places. endobj International Code Council (ICC) Parts 1, 2, 2.5, 6, 8, 9, 10, 11 and 12 (800) 786-4452 International Association of Plumbing and Mechanical Officials (IAPMO) Parts 4 and 5 (909) 472-4208 National Fire Protection Association (NFPA) Part 3 - 2019 (800) 344-3555 BNi Building News Part 3 - 2016 (888) 264-2665 This, however, can result in a dramatic increase in cost, space availability (lack thereof), and reduced efficiency. xc`? National Electrical Code. :`hlaUtx ~XE// s For instance, one method to reduce the available fault current is to add an isolation transformer ahead of the elevator controller. Notice the definition mentions the full range of operating times. /Contents 37 0 R ASME is often one of the first codes referenced by inspectors when it comes to elevators. CHAPTER 31. Minnesota's elevator code consists of the following: Safety Codes for Elevators and Escalators. If the building code does not require sprinkler protection based on occupancy, constructions type, size, or height then the elevator is also not required to be protected. The International Fire Code, the International Property Maintenance Code and NFPA . . It is important to note, that these selective coordination tables can indicate a lack of selective coordination at a given fault current for circuit breakers that do not show overlap on the time-current curves of the circuit breakers. CHAPTER 33. The ASME A18.1-2017 is the Safety Standard for Platform Lifts and Stairway Chairlifts. Privacy Policy NEC 620.62 requires the elevator disconnecting means (fused switch or circuit breaker) to selectively coordinate with all supply-side overcurrent devices. One (1) 120V 15 Amp Fused Disconnect or Circuit Breaker, as outlined, for cab lighting. We resume with a look at wiring methods, overcurrent protection, grounding and other NEC provisions as they relate to these installations. (Cross-sectional areas of conductors are given in Chapter 9, Tables 5 through 8. Part VII, Overcurrent Protection, divides this topic into four categories for elevators and similar equipment, depending upon the nature of the specific equipment: For operating devices and control and signaling circuits, protection against overcurrent is in accordance with the requirements of Sections 725.43 and 725.45. First, the ATS signals the elevators that it's about to switch over to emergency power preferably 30 sec or more prior to switching, which allows the elevator controller to bring each elevator cab to the nearest landing and stop, thus protecting the motors and electrical system. This contributes to the standards purpose of providing a reasonable degree of protection for both life and property. Hint: Duct Tape to the Rescue, EC&M Tech Talk Video Medium-Voltage Conductors and Cable, Monthly Quiz: Grounding and Bonding Connections. They must be in enclosures with doors or removable panels that can be locked in the closed position. Feeders may be installed within the hoistway where the elevator has a driving-machine motor in the hoistway or on the car or counterweight. Some elevator controller manufacturers believe this is an issue for the electrical system designer and installer to address and remedy by adding impedance to the system for lowering the available fault current. First, you'll need to install lighting in the elevator equipment room (Photo 1) and shaft pit (Photo 2). With the new elevator controller requirements, more attention will be focused on the elevator system. It is important for the design engineer to coordinate with the architect to determine the elevator manufacturer basis of design to determine if and when additional power and lighting is required. Section 90.3, Code Arrangement, clarifies that chapters 1 through 4 apply generally and chapters 5, 6 and 7 may supplement or modify requirements in chapters 1 through 7. Elevator Pit Fireman telephone jacks and telephone cabling are typically sufficient for each of these locations. endstream SECTION2701GENERAL. ?h56rIia,rQNpc9L9D}r 0V5aFa+a7a7a7a7&0000G 0orwa-a}#a7a7a}V*)0I6uh4Zuf[%c|KHy,}_Ka' e00T?{{{7Kp;7X }itW&wvv~%{zz
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