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19 ANSI / BHMA A156.10
the open position. The activating zone shall have a minimum width equal to the width of the
clear opening measured at 8 in. and 30 in. from the interlace of the safety and activating zones.
8.2.5 When sensors are used to provide both an activating and a safety zone, if the distance be-
tween the two non overlapping zones exceeds 8 in. the door system shall:
1) be equipped with a safety control mat; or
2) be equipped with a presence sensor across the door opening; or
3) have a door closing cycle delay of 4 seconds minimum after the activating zone is clear; or
4) be equipped with a door mounted presence sensor on the non swing side as described in
8.2.2.3.
For knowing Act and double egress doors, see full standard Section 9.
10. Entrapment Protection
10.2 Swinging Doors
10.2.1 The opening time of a swing door to 80 degrees shall not be less than 1.5 seconds
10.2.2 The force required to prevent a stopped power operated swinging door in the last 10 de-
grees of opening from moving in the direction of opening shall not exceed 30 lbf (133 N)
measured 1 in. from the lock edge of the door.
10.2.3 Back check shall occur at no less than 10 degrees of the full open position.
10.2.4 Swing doors utilizing sensors or control mats shall remain open a minimum of 1.5 seconds
after loss of detection unless otherwise specified in this standard.
10.2.5 A swing door shall be adjusted so that the closing times to latch shall be the minimum
values in the following table:
Inches (mm)
(D)
36 (914) & under
36 (914)
42 (1067)
42 (1067)
48 (1219)
48 (1219)
For doors of other weights and widths:
T = D √W /188 where:
W = Weight of door in pounds
D = Width of door in inches
T = Closing time to latch check in seconds
10.2.6 Latch Check shall occur for swinging doors at no less than 10 degrees from closed position
and the door shall not close through the final 10 degrees in less than 1.5 seconds.
10.2.7 The force required to prevent a stopped power operated swinging door from moving in
the direction of closing shall not exceed a 30 lbf (133 N) measured 1 in. from the lock edge of
the door at any point in the closing cycle.
10.2.8 In the event of power failure, a swing door shall be capable of being opened manually
with no greater than a 30 lbf (133 N), applied 1 in. from the edge of the lock stile to open.
76
Lbs. (kg)
Time
(W)
T (secs.)
to 100 (45)
2.0
to 140 (64)
2.3
to 110 (50)
2.3
to 150 (68)
2.7
to 120 (55)
2.8
to 160 (73)
3.2
Issue 2012-06-27
1007718-US-3.0
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