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Precautions (continued)
· Electricity produces magnetic fields that can affect implanted medical electronic devices, such as
pacemakers. The strength of the magnetic field depends on the amount of current in the circuit,
as well as other conditions (such as number of conductors, placement, and distance from the
conductor). DC power and distribution systems, including the batteries, that are typically used in
telecommunications utility rooms can operate at high current levels. Personnel with electronic
medical devices need to be aware of their restrictions when working around electricity.
· In addition to proper job training and safety procedures, the following are some basic precautions
that should always be used:
· Use only properly insulated tools.
· Remove all metallic objects (key chains, glasses, rings, watches, or any other jewelry).
· Follow Lock Out Tag Out (LOTO) procedures: customer specified, site specific, or general
as appropriate. Disconnect all power input before servicing the equipment. Check for
multiple power inputs.
· Wear safety glasses.
· Follow Personal Protective Equipment requirements: customer specified, site specific, or
general as appropriate.
· Test circuits before touching.
· Be aware of potential hazards before servicing equipment.
· Identify exposed hazardous electrical potentials on connectors, wiring, etc. (note the
condition of these circuits, especially any wiring).
· Avoid contacting circuits when removing or replacing covers.
· Use a personal ESD strap when accessing or removing electronic components.
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