Fire Hazards - R&S N 8000 Series System Manual

Labeling the workplace as subject to RF hazards
Wearing RF protective cloth
Taking special safety precautions for persons with implants such as metal parts, pace-
makers, etc, since they are particularly susceptible to injury.
4.4

Fire Hazards

Every electric circuit containing sufficient energy and to which voltage is applied poses fire
hazards. This also applies to radio transmitters. For transmitter radio systems, it is therefore
necessary to create a safety plan for the event of fire.
Operating personnel must be trained on how to proceed in the case of fire in areas contain-
ing electrical systems; training must be repeated at regular intervals. Personnel should be
trained on the basis of the VDE 0132 standard and in agreement with the local fire depart-
ment.
The following statement applies in Germany. Preventive measures at the site in question
can largely eliminate the risk of fire or prevent its spread as far as possible.
Prevention and fire-fighting
When setting up the transmitter, the operator must ensure that no inflammable materials
are located below or above the cable entry nor attached to it.
Make sure that openings to adjacent spaces are closed in a flame-retardant manner.
Fire-fighting is only allowed with special equipment even if the flames are insignificant
or have no effect at all (e.g. breathing mask with air bottle).
For fire-fighting, only suitable fire extinguishers (e.g. CO
One reason for requiring special equipment is the fact that extremely poisonous and imper-
ceptible carbon monoxide is released during every fire. Another reason is that the materials
contained in the instruments and systems emit poisonous vapors, gases and dust such as
sulfuric acid and hydrogen sulfide, hydrochloric acid, dioxin, hydrofluoric acid and beryllium
oxide dust when they are exposed to external flame and heat.
The following materials can be affected:
– Rubber in cables, cable bushings, vibration absorbers and instrument feet
– PVC in cables and lines
– PUR (foam) in insulators, molded parts, sealing mats and insulating strips
– Teflon in cables, lines, insulation material and printed boards
– Beryllium oxide ceramics in power transistors
2098.1190.72
Chapter 1
- 1.8 -
Safety Instructions
extinguishers) may be used.
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E-4