BHMA A156-27:2003 pdf download.AMERICAN NATIONAL STANDARD FOR POWER AND MANUAL OPERATED REVOLVING PEDESTRIAN DOORS
1.SCOPE
1.1 Requirements in this standard apply to power operated revolving type doors which rotate automatically when approached by pedestrians, some small vehicular use, and manual revolving type doors for pedestrians. Included are provisions to reduce the chance of user injury and entrapment. Revolving doors for industrial or trained traffic are not covered in this Standard.
1.2 Where this standard contains specifications relating to maximum and minimum dimensions of various components of revolving doors for pedestrian use and some small vehicular traffic, such dimensions are included to provide user protection for what are in the industry, standard application conditions. This standard does not attempt to assess any factors that exist with respect to custom installations.
15.1 Slow Speed Operation Activation: One device on the interior and one device on the exterior sides of the door shall be placed within 48 in. (1220mm) of the right hand entry to the door. The device shall be located between 24 and 48 in. (610 to 1220mm) from the floor. The activation area of the button shall be a minimum of 1 in. (25 mm) diameter.
15.2 Slow Speed Operation Requirements: Shall be a maximum of % the RPM specified by the applicable door type for a minimum of one revolution.
16. WING SENSORS
16.1 Wing Sensor: When wing sensors are required (see Section 18.1), the sensor shall detect a 28in.(710mm) minimum high person or equivalent in the rotating path 10 in. (254mm) minimum from the face of the wing, and shall cause the door to stop or slow to the maximum allowed kinetic energy speed. The sensor shall provide an active area for the width of the wing less 15 in. from the center shaft and 5 in. from the outer edge of the outer stile.
17.END WALL AND BOTTOM RAIL SENSORS
17.1 End Wall / Leading Edge Sensor: A sensing device shall detect interference between the rotating wings and the leading edge of the enclosure. It shall be active within 2 in. (50mm) of the floor and shall be active for at least 60 in. (1520 mm) from the floor. Contact switches shall require no more than 10 lbf. (45N) pressure to activate. Upon receipt of a signal from the sensor, the door shall stop rotating.
17.2 Bottom Rail Sensor: A contact switch or optical sensing device shall be active in the rotating path of the wing. It shall be active within 2 in. (50 mm) from outer edge of the outer stile end and 6 in. (150 mm) from the center of the door and not higher than 4 in. (100 mm) from the finished floor ，Contact switches shall require no more than 10 lbf. (45N) pressure to activate. Upon receipt of a signal, the door shall stop rotating.BHMA A156-27 pdf download.