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Appendix C: Safety Requirements

C.1 Safety agency listings

FreeSpace

Model 8 and Model 32 (70V, 100V and 4 versions)

All models are UL 1480 listed:

• Vandal resistant (with grilles in place);

• General use - UL Category UEAY, Control number 3N89, File number S5591;

• Air handling spaces (ceiling plenums) - NFPA 70 NEC 1993 Article 300-22

ventilation systems, section 2-3.10.1 (a) exception 3.

FreeSpace Model 8 and Model 32 (70V fire safety models)

In addition to the above listings, fire safety models are UL listed for fire protective

signaling.

• Fire protective signaling use - UL Category UUMW, Control number 42S9,

File number S 3241).

C.2 Fire protective signaling

Bose

offers 70V fire safety models of both FreeSpace Model 8 and Model 32

loudspeakers listed with UL as fire protective signaling devices. These loudspeak-

ers are available only by special order.

Signal processing equipment

The Bose FreeSpace

use with FreeSpace Model 8 and Model 32 loudspeakers in fire protective signaling

and warning systems. The FreeSpace system controller installer's guide describes

the proper set up of fire protective signaling and warning systems using FreeSpace

Model 8 or Model 32 loudspeakers.

Wire preparation

Although the loudspeaker terminals will accept either stripped wires or crimp-on

forked connectors, using forked connectors as shown in Figure 18b for multiple

wires is not acceptable in fire protective signaling and warning systems due to the

lack of electrical supervision capability. Electrical supervision capability is main-

tained by connecting each wire individually to the terminals.

Sound Pressure Level (SPL) specifications

Loudspeaker sound pressure level is measured per UL-1480/ANSI-S1.12/ANSI-

S1.2 in the specified reverberant chamber. These SPLs will differ from the specifi-

cation given in the tables contained in Appendix A and Appendix B.

FreeSpace Model 8 Fire safety model

Wattage tap

1 Watt

dB at 10 feet

75dBA

FreeSpace Model 32 Fire safety model

Wattage tap

1 Watt

dB at 10 feet

81dBA

(Model 8/32) system controller is the only equalizer listed for

2 Watt

4 Watt

78dBA

81dBA

2 Watt

4 Watt

84dBA

87dBA

AM177915_03_V.pdf • May 6, 2002

8 Watt

84dBA

8 Watt

16 Watt

32 Watt

*90dBA

93dBA

* UL requires a step of

3dB (with a +/- .2dB

variable) with each

doubling of input power.

Because our trans-

former gives slightly

less than the required

3dB step between 8

watts and 16 watts, we

must show the last dB

rating. In this case,

there are two 90dB

ratings. For these

values, the actual UL

measured level for the

8W tap is 89.9dBA, for

the 16W tap is

92.5dBA, and for the

32W tap is 94.6dBA.