BHMA A156-27:2011 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.
1.3 Enclosure sizes shown in the charts shown are considered by the industry to be standard and practical to meet the majority of the market needs and are shown as a guide and convenience to owners and architects that are selecting a revolving door and as a convenience to installers and service persons adjusting the door and owners making periodic inspection. Deviation from enclosure sizes shown does not constitute non-compliance if the door complies with all requirements in the standard.
2.DEFINITIONS
2.1 Active Area An area where sensors detect presence or motion.
2.2 Automatic Door Operator A power operated mechanism that is attached to a revolving door for the purpose of mechanically opening a door upon the receipt of an activating signal. (Also called a power door operator.)
2.3 Automatic Home Positioning Manual revolving doors with automatic home positioning are small diameter 3 or 4 wing revolving doors that utilize a Low Energy operator or mechanism to return the doors to the Home position once a person exit the door and the door stops rotating.
2.4 Automatic Door Speed The rate at which an automatic revolving door rotates measured in revolutions per minute (RPM). Three classifications are used:
Standard Speed The maximum allowable RPM for a revolving door.
Slow Speed One half of standard speed.
Low Energy Speed Door speed resulting in a maximum of 2.5 lbf.- ft. (3.4Nm) of kinetic energy.
2.5 Bookfold Position When each wing has been released from its fixed position permitting wings to pivot in the direction of egress.
2.6 Bottom Rail The lower horizontal member of the door wing.
2.7 Break Out A process whereby wings and/or door panels can be pushed open manually for emergency egress.BHMA A156-27 pdf download.