CHAPTER 7: COMMUNICATION ELEMENTS AND FEATURES
701 General
701.1 Scope. Communications features and elements
required to be accessible by Chapter 2 shall comply with the applicable provisions
of this chapter.
702 Fire Alarm Systems
702.1 General. Fire alarm systems required to
be accessible shall have audible alarms complying with 702.2 and visual alarms
complying with 702.3.
EXCEPTION: Fire alarm systems in medical care facilities shall be permitted to be modified to suit standard health care alarm practice.
702.2 Audible Alarms. Audible alarms shall produce
a sound that exceeds the prevailing equivalent sound level in the room or space
by at least 15 dBA or exceeds any maximum sound level with a duration of 60 seconds
by 5 dBA. whichever is louder. Sound levels for alarm signals shall not exceed
120 dBA.
702.3 Visual Alarms. Visual alarms shall comply
with 702.3.1 through 702.3.6
702.3.1 Light Pulse Characteristics.
702.3.1.1 Type. The lamp shall be a xenon strobe
type or equivalent.
702.3.1.2 Color. The color shall be clear or
nominal white.
702.3.1.3 Flash Rate. The flash rate for an individual
appliance shall be 1 Hz minimum and 2 Hz maximum over its rated voltage range.
702.3.1.4 Pulse Duration. The maximum pulse duration
shall be two-tenths of one second with a maximum duty cycle of 40 percent. The
pulse duration is defined as the time interval between initial and final points
of 10 percent of maximum signal.
702.3.2 Dispersion. Light dispersion of wall
mounted appliances shall comply with Table 702.3.2.1. Light dispersion of ceiling
mounted appliances shall comply with Table 702.3.2.2.
Table 702.3.2.1 Light Dispersion for Wall-Mounted Visual Alarm Appliances |
Vertical Dispersion |
Horizontal Dispersion |
Degrees from Horizontal |
Percent of Rated |
Degrees from vertical |
Percent of Rated |
0 |
100 |
0 |
100 |
5-30 |
90 |
5-25 |
90 |
35 |
65 |
30-45 |
75 |
40 |
46 |
50 |
55 |
45 |
34 |
55 |
45 |
50 |
27 |
60 |
40 |
55 |
22 |
65 |
35 |
60 |
18 |
70 |
35 |
65 |
16 |
75 |
30 |
70 |
15 |
80 |
30 |
75 |
13 |
85 |
25 |
80 |
12 |
90 |
25 |
85 |
12 |
|
|
90 |
12 |
|
|
|
Table 702.3.2.2 Light Dispersion for Ceiling- Mounted Visual Alarm Appliances |
Degrees from Vertical |
Percent of Rated |
0 |
100 |
5-25 |
90 |
30-45 |
75 |
50 |
55 |
55 |
45 |
60 |
40 |
65 |
35 |
70 |
35 |
75 |
30 |
80 |
30 |
85 |
25 |
90 |
25 |
|
702.3.3 Mounting Height. Appliances shall be
located in accordance with 702.3.3.1 or 702.3.3.2.
EXCEPTION: Appliances in guest rooms shall comply with 702.3.6.
702.3.3.1 Wall mounted appliances. Appliances
shall be located 80 inches (2030 mm) minimum and 96 inches (2440 mm) maximum above
the finished floor measured to the bottom of the appliance.
EXCEPTION: Wall mounted appliances which are part of a smoke detector shall be located 4 inches (100 mm) minimum and 12 inches (305 mm) maximum below the ceiling measured to the top of the smoke detector.
702.3.3.2 Ceiling-Mounted Appliances. Ceiling-mounted
appliances shall be located on the ceiling. Where ceiling height exceeds 30 feet
(9140 mm), appliances shall be suspended from the ceiling to a height of 30 feet
(9140 mm) maximum above the finished floor.
702.3.4 Spacing Allocation and Minimum Intensity.
Spacing and minimum effective intensity for appliances shall comply with 702.3.4.1
through 702.3.4.3.
EXCEPTIONS:
1. Appliances in corridors not more than 20 feet (6100 mm) in width shall comply with 702.3.5.
2. Appliances in guest rooms shall comply with 702.3.6.
702.3.4.1 General. The signal provided by the
appliance or appliances shall be visible either by direct view or by reflection
from all parts of the covered area. Multiple appliances within an area are permitted
only where size, shape, building construction or furnishings prohibit total coverage
by a single appliance. Where multiple appliances are provided in a single area
to provide total area coverage, the appliances shall comply with one of the following:
a maximum of two appliances located on opposite walls; the appliances shall have
synchronized flashes, or, in rooms 80 feet (24 m) by 80 feet (24 m) or greater
in size, more than two appliances located such that all appliances in any 135-degree
field of view are spaced a minimum of 55 feet (17 m) from each other.
702.3.4.2 Wall mounted appliances. Spacing and
minimum effective intensity for wall mounted appliances shall be in accordance
with Table 702.3.4.2 provided the appliance is located at the midpoint of the
longest side of the area served. Where the appliance is not located at the midpoint,
the minimum effective intensity shall be based upon a maximum area of coverage
equal to the distance to the opposite side of the area served or double the distance
to the farthest adjacent side of the area served, whichever is greater.
Table 702.3.4.2 Spacing Allocation for Wall-Mounted Visual Alarm Appliances |
Maximum Area of Coverage in Feet |
Minimum Required Light Output (Effective Intensity)(candela) |
|
One Light Per Area |
Two Lights Per Area |
Four Lights Per Area |
20X20 (6100X6100 mm) |
15 |
Not Permitted |
Not Permitted |
30X30 (9140X9140 mm) |
30 |
15 |
Not Permitted |
40X40 (12X12 m) |
60 |
30 |
Not Permitted |
50X50 (15X15 m) |
95 |
60 |
Not Permitted |
60X60 (18X18 m) |
135 |
95 |
Not Permitted |
70X70 (21X21 m) |
185 |
95 |
Not Permitted |
80X80 (24X24 m) |
240 |
135 |
60 |
90X90 (27X27 m) |
305 |
185 |
95 |
100X100 (30X30 m) |
375 |
240 |
95 |
110X110 (34X34 m) |
455 |
240 |
135 |
120X120 (37X37 m) |
540 |
305 |
135 |
130X130 (40X40 m) |
635 |
375 |
185 |
|
702.3.4.3 Ceiling mounted appliances. Spacing
and minimum effective intensity for ceiling mounted appliances shall be in accordance
with Table 702.3.4.3 provided the appliance is located at the centerpoint of the
area served. Where the appliance is not located at the centerpoint, the minimum
effective intensity shall be based upon a maximum area of coverage equal to two
times the distance from the appliance to the farthest side of the area served.
Table 702.3.4.3 Spacing Allocation for ceiling-Mounted Visual Alarm Appliances |
Maximum Area of Coverage in Feet |
Minimum Required Output (Effective Intensity)(candela) |
|
Maximum Ceiling Height in Feet |
One Light |
20X20 (6100X6100 mm) |
10 (3050 mm) |
15 |
30X30 (9140X9140 mm) |
10 (3050 mm) |
30 |
40X40 (12X12 m) |
10 (3050 mm) |
60 |
50X50 (15X15 m) |
10 (3050 mm) |
95 |
20X20 (6100X6100 mm) |
20 (6100 mm) |
30 |
30X30 (9140X9140 mm) |
20 (6100 mm) |
45 |
40X40 (12X12 m) |
20 (6100 mm) |
80 |
50X50 (15X15 m) |
20 (6100 mm) |
115 |
20X20 (6100X6100 mm) |
30 (9140 mm) |
55 |
30X30 (9140X9140 mm) |
30 (9140 mm) |
75 |
40X40 (12X12 m) |
30 (9140 mm) |
115 |
50X50 (15X15 m) |
30 (9140 mm) |
150 |
|
702.3.5 Corridor Spacing Allocation and Minimum Intensity.
Corridors that are 20 feet (6100 mm) maximum in width shall comply with 702.3.5.Corridors
exceeding 20 feet (6100 mm) in width shall comply with 702.3.4.
702.3.5.1 Appliance Spacing. Appliances shall
be located 15 feet (4570 mm) maximum from each end of the corridor and shall be
located 50 feet (15 m) minimum and 100 feet (30 m) maximum apart along the corridor.
Interruptions to the concentrated viewing path by doors, elevation changes or
other obstructions shall constitute the end of a corridor for purposes of this
section.
702.3.5.2 Minimum Effective intensity. Appliances
shall have a minimum effective intensity of 15 candela.
702.3.6 Guest Rooms. Guest rooms required to
have visual alarms shall comply with 702.3.6.1 through 702.3.6.3.
702.3.6.1 Activation. Where single or multiple-station
smoke detectors are provided in the sleeping room or suite, a visual alarm that
is activated upon activation of the smoke detectors shall be provided within the
room or suite. Where a building fire alarm system is provided, a visual alarm
that is activated upon activation of the system shall be provided within the room
or suite. The signaling line or channel between the activating device of the appliance
and the building fire alarm system shall be monitored for integrity by the building
fire alarm system. Where the same appliance is used for visual notification of
smoke detector and fire alarm system activation, activation of the room or suite
smoke detectors shall not activate the building fire alarm system.
702.3.6.2 Location. In sleeping rooms or suites
having a linear dimension exceeding 16 feet (4880 mm), the appliance shall be
located 16 feet (4880 mm) maximum from the head end of the bed location, measured
horizontally. Where a suite contains more than one sleeping room, an appliance
shall be provided in each sleeping room.
702.3.6.3 Minimum Effective intensity and Mounting
Height. Wall mounted appliances located 24 inches (610 mm) minimum below the
ceiling shall have a minimum effective intensity of 110 candela. Ceiling mounted
appliances and wall mounted appliances located less than 24 inches (610 mm) below
the ceiling shall have a minimum effective intensity of 177 candela.
703 Signs
703.1 General. Signs required to be accessible
shall comply with 703.
703.2 Characters that are Both Tactile and Visual.
Characters required to be tactile shall comply with 703.2.1 through 703.2.7. Tactile
characters shall be duplicated in Braille complying with 703.5.
EXCEPTION: Tactile characters complying with 703.3, where separate visual characters complying with 703.4 provide the same information.
703.2.1 Finish and Contrast. Characters and their
background shall have a non-glare finish. Characters shall contrast with their
background with either light characters on a dark background or dark characters
on a light background.
703.2.2 Tactile Characters. Tactile characters
shall be raised 1/32 inch (0.8 mm) minimum above their background. Raised borders
and decorative elements that are not required shall be separated 3/8 inch (9.5
mm) minimum from tactile characters.
703.2.3 Character Forms. Fonts shall have characters
complying with 703.2.3.1 through 703.2.3.5.
703.2.3.1 Case. Characters shall be uppercase.
703.2.3.2 Style. Characters shall be sans serif.
Characters shall not be italic, oblique, script, highly decorative or of other
unusual forms.
703.2.3.3 Width. Character width shall be 55
per cent minimum and 110 per cent maximum the height of the character with the
width based upon the uppercase letter "O" and the height based upon the uppercase
letter "I".
703.2.3.4 Height. Character height measured vertically
from the baseline of the character shall be 5/8 inch (16 mm) minimum and 2 inches
(51 mm) maximum based upon the uppercase letter "I".
703.2.3.5 Stroke Thickness. For characters with
rectangular cross sections, the stroke thickness of the uppercase letter "I" shall
be 10 per cent minimum and 15 per cent maximum of the height of the character.
For characters with other cross sections, the stroke thickness of the uppercase
letter "I" shall be 10 per cent minimum and 30 per cent maximum of the height
of the character measured at the base of the cross section. Stroke thickness at
the top of the cross section shall be 15 per cent maximum of the height of the
character.
703.2.4 Character Spacing. Character spacing
shall be measured between the two closest points of adjacent characters within
a message, excluding word spaces. Where characters have rectangular cross sections,
spacing between individual characters shall be 1/8 inch (3 mm) minimum to 3/8
inch (10 mm) maximum. Where characters have other cross sections, spacing between
individual characters shall be 1/16 inch (2 mm) minimum to 3/8 inch (10 mm) maximum
at the base of the cross sections and 1/8 inch (3 mm) to 3/8 inch (10 mm) maximum
at the top of the cross sections.
703.2.5 Line Spacing. Spacing between the baselines
of separate lines of characters in a sentence or paragraph shall be 135 per cent
minimum and 170 per cent maximum of the character height.
703.2.6 Mounting Height. Characters shall be
located 48 inches (1220 mm) minimum and 60 inches (1525 mm) maximum above the
adjacent floor or ground surface measured from the baseline of the characters.
EXCEPTION: This requirement shall not apply to elevator car controls.
703.2.7 Mounting Location. Where a sign containing
tactile characters is provided at a door, the sign shall be located alongside
the door at the latch side. Where a tactile sign is provided at double doors,
the sign shall be located to the right of the right hand door. Where there is
no wall space at the latch side of a single door or to the right side of double
doors, signs shall be located on the nearest adjacent wall. Signs containing tactile
characters shall be located so that a clear floor space of 18 inches (455 mm)
by 18 inches (455 mm) minimum, centered on the sign, is provided beyond the arc
of any door swing between the closed position and 45 degree open position.
EXCEPTION: Signs shall be permitted on the push side of doors with closers and without hold-open devices.
703.3 Tactile Characters. Where tactile characters
are required and separate tactile and visual characters with the same information
are provided, tactile characters shall comply with 703.3.1 through 703.3.6 and
visual characters shall comply with 703.4. Tactile characters shall be
duplicated in Braille complying with 703.5.
703.3.1 Tactile Characters. Tactile characters
shall be raised 1/32 inch (0.8 mm) minimum above their background. Raised borders
and decorative elements that are not required shall be separated 3/8 inch (9.5
mm) minimum from tactile characters.
703.3.2 Character Forms. Fonts shall have characters
complying with 703.3.2.1 through 703.3.2.5.
703.3.2.1 Case. Characters shall be uppercase.
703.3.2.2 Style. Characters shall be sans serif.
Characters shall not be italic, oblique, script. highly decorative or of other
unusual forms.
703.3.2.3 Width. Character width shall be 55
per cent minimum and 110 per cent maximum the height of the character with the
width based upon the uppercase letter "O" and the height based upon the uppercase
letter "I".
703.3.2.4 Height. Character height measured vertically
from the baseline of the character shall be 1/2 inch (13 mm) minimum and 3/4 inch
(19 mm) maximum based upon the height of the uppercase letter "I".
703.3.2.5 Stroke Thickness. Stroke thickness
of the uppercase letter "I" shall be 15 per cent maximum of the height of the
character.
703.3.3 Character Spacing. Character spacing
shall be measured between the two closest points of adjacent character within
a message, excluding word spaces. Spacing between individual character shall be
1/8 inch (3 mm) minimum to 1/4 inch (6 mm) maximum.
703.3.4 Line Spacing. Spacing between the baselines
of separate lines of characters in a sentence or paragraph shall be 135 percent
minimum and 170 percent maximum of the character height.
703.3.5 Mounting Height. Characters shall be
located 48 inches (1220 mm) minimum and 60 inches (1525 mm) maximum above the
adjacent floor or ground surface, measured from the baseline of the characters.
EXCEPTION: This requirement shall not apply to elevator car controls.
703.3.6 Mounting Location. Where a tactile sign
is provided at a door, the sign shall be located alongside the door at the latch
side. Where a tactile sign is provided at double doors, the sign shall be located
to the right of the right hand door. Where there is no wall space at the latch
side of a single door or to the right side of double doors, signs shall be located
on the nearest adjacent wall. Signs containing tactile characters shall be located
so that a clear floor space of 18 inches (455 mm) by 18 inches (455 mm) minimum,
centered on the sign, is provided beyond the arc of any door swing between the
closed position and 45 degree open position.
EXCEPTION: Signs shall be permitted on the push side of doors with closers and without hold-open devices.
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