Chamberlain LIFTMASTER PROFESSIONAL SW470 - Manual (Page 7)

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1.1 Gates shall be constructed in accordance with the provisions
given for the appropriate gate type listed, refer to ASTM
F2200 for additional gate types.
1.2 Gates shall be designed, constructed and installed to not fall
over more than 45 degrees from the vertical plane, when a
gate is detached from the supporting hardware.
1.3 Gates shall have smooth bottom edges, with vertical bottom
edged protrusions not exceeding 0.50 inches (12.7 mm)
when other than the exceptions listed in ASTM F2200.
1.4 The minimum height for barbed tape shall not be less than 8
feet (2.44 m) above grade and for barbed wire shall not be
less than 6 feet (1.83 m) above grade.
1.5 An existing gate latch shall be disabled when a manually
operated gate is retrofitted with a powered gate operator.
1.6 A gate latch shall not be installed on an automatically
operated gate.
1.7 Protrusions shall not be permitted on any gate, refer to ASTM
F2200 for Exceptions.
1.8 Gates shall be designed, constructed and installed such that
their movement shall not be initiated by gravity when an
automatic operator is disconnected.
1.9 A pedestrian gate shall not be incorporated into a vehicular
gate panel or that portion of the adjacent fence that the gate
covers in the open position.
1. GENERAL REQUIREMENTS
2. SPECIFIC APPLICATIONS
2.1 Any non-automated gate that is to be automated shall be
upgraded to conform to the provisions of this specification.
2.2 This specification shall not apply to gates generally used for
pedestrian access and to vehicular gates not to be
automated.
2.3 Any existing automated gate, when the operator requires
replacement, shall be upgraded to conform to the provisions
of this specification in effect at that time.
3. VEHICULAR HORIZONTAL SLIDE GATES
3.1 The following provisions shall apply to Class I, Class II and
Class III vehicular horizontal slide gates:
3.1.1 All weight bearing exposed rollers 8 feet (2.44 m), or less,
above grade shall be guarded or covered.
3.1.2 All openings located between 48 inches (1.22 m) and 72
inches (1.83 m) above grade shall be designed, guarded or
screened to prevent a 4 inch
(102 mm) diameter sphere from passing through the
openings anywhere in the gate, and in that portion of the
adjacent fence that covers in the open position.
3.1.3 A gap, measured in the horizontal plane parallel to the
roadway, between a fixed stationary object nearest the
roadway, (such as a gate support post) and the gate frame
when the gate is in either the fully open position or the
fully closed position, shall not exceed 2-1/4 inches
(57 mm), refer to ASTM F2200 for Exception.
3.1.4 Positive stops shall be required to limit travel to the
designed fully open and fully closed positions. These stops
shall be installed at either the top of the gate, or at the
bottom of the gate where such stops shall horizontally or
vertically project no more than is required to perform their
intended function.
3.1.5 All gates shall be designed with sufficient lateral stability to
assure that the gate will enter a receiver guide, refer to
ASTM F2200 for panel types.
3.2 The following provisions shall apply to Class IV vehicular
horizontal slide gates:
3.2.1 All weight bearing exposed rollers 8 feet (2.44 m), or less,
above grade shall be guarded or covered.
3.2.2 Positive stops shall be required to limit travel to the
designed fully open and fully closed positions. These stops
shall be installed at either the top of the gate, or at the
bottom of the gate where such stops shall horizontally or
vertically project no more than is required to perform their
intended function.
4. VEHICULAR HORIZONTAL SWING GATES
4.1 The following provisions shall apply to Class 1, Class II
and Class III vehicular horizontal swing gates:
4.1.1 Gates shall be designed, constructed and installed so as
not to create an entrapment area between the gate and
the supporting structure or other fixed object when the
gate moves toward the fully open position, subject to the
provisions in the 4.1.1.1 and 4.1.1.2.
4.1.1.1 The width of an object (such as a wall, pillar or column)
covered by a swing gate when in the open position shall
not exceed 4 inches (102 mm), measured from the
centerline of the pivot point of the gate, refer to ASTM
F2200 for exception.
4.1.1.2 Except for the zone specified in Section 4.1.1.1, the
distance between a fixed object such as a wall, pillar or
column, and a swing gate when in the open position shall
not be less than 16 inches (406 mm), refer to ASTM
F2200 for exception.
4.2 Class IV vehicular horizontal swing gates shall be
designed, constructed and installed in accordance with
security related parameters specific to the application in
question.
Vehicular gates should be installed in accordance with ASTM F2200: Standard Specification for Automated Vehicular Gate Construction.
For a copy, contact ASTM directly at 610-832-9585 or www.astm.org.
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