Those who need the ASME elevator code and related standards should consider the ASME A17 Elevator and Escalator Safety Package, which bundles several documents together at a discount. Search the most complete elevator code and regulations directory for United States 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. 11 0 obj The images below demonstrate hydraulic elevators and traction elevators and show the different locations where the need for sprinklers must be evaluated. Overload protection for motors is to conform with Article 430, Part III, the general code area that covers motor and branch-circuit overload protection for all motors. It is important, where mandated, that there be no more than a single disconnecting means, so if emergency action is required, first responders will not be able to power down the equipment from one location. In many cases, the overcurrent protective devices that are suitable for this level of protection are current-limiting fuses rather than a traditional circuit breaker. Additionally, duty on elevator and dumbwaiter motors is rated as intermittent, whereas duty on escalator and moving-walk motors is considered continuous. Responses are provided by NFPA Technical Staff on an informal basis. CHAPTER 33. Part X, Emergency and Standby Power Systems, is simple and straightforward. Chapter 29 Plumbing Systems. The pump sends hydraulic fluid from the reservoir to the cylinder, buried deep below the elevator shaft. 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. Traditionally, the electrical system design engineer has given little attention to the elevator controller. After reading this article, you should have learned: Which locations require sepa-rate, dedicated branch circuits Which branch circuits are not to be provided with ground fault circuit interrupter (GFCI) pro-tection Which locations must have one or more duplex receptacles Where overcurrent protection for hoistway, pit and machine-room lighting must be located How unsupported lengths of traveling cables are measured. The elevator equipment room that serves a hydraulic elevator is almost always located on the lowest floor adjacent to the elevator shaft. Second, it must be configured so as to eliminate any chance of tangling or chafing against the inner surface of the hoistway or items mounted on it. Next, with multiple elevator banks, the controller will usually allow only one elevator at a time to operate, reducing the amount of emergency power required. Power for the elevator controller must first enter a lockable safety disconnect device, located adjacent to the door of the equipment room. Codes - California Elevators with driving machines located on the car or counterweight, or in the hoistway are permitted outside the specified spaces. Here are the items that they will look for: A clean and dry elevator pit and machine/control room provided (ASME A17.1 Rule 2.1.2) You are a subscriber that needs to Sign In. NEC Article 620: Elevators, Part 2 You are seeing this message for one of three reasons: You have reached your limit of free content. Compliance with the 2017 NEC for Elevator Controllers For traction type elevators there are a number of provisions that can all be met in order to omit sprinklers from these spaces. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. When the elevator car is at the top landing, it is the length of cable as measured from the point of suspension on the car to the bottom of the loop. endobj A single means for disconnecting all ungrounded main power-supply conductors is required and must be designed so no pole can be operated independently. Section 620.43, Location of and Protection for Cables, provides that traveling cable supports are to be located so as to reduce the possibility of damage due to the cables coming in contact with the hoistway construction or equipment in the hoistway to a minimum.
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