Tektronix NetTek YBT1E1, Руководство пользователя

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Getting Started
NetTek YBT1E1 T1 & E1 Circuit Tester User Manual
1- 21
H
If you hear thunder or see lightning, do not connect this product
to any source that may be exposed to the effects of lightning.
H
Use your own good judgement and common sense. You must
protect yourself from the effects of lightning.
H
You must assume that hazardous voltages will be present on
exposed surfaces of this product if it is connected to a source
exposed to lightning. The insulation of this product will not
protect you from these hazardous voltages.
Do Not Connect this Product to Any Source that Might be Subject to the
Effects of Lightning
If thunderstorms or lightning are in your vicinity:
H
When weather conditions that could lead to lightning activity
exist in your area,
you could be at risk of a lightning strike
before the cloud is close enough for you to hear thunder or see
lightning.
H
When lightning strikes a structure or facility, current travels
through the rebar, concrete, pipes, cables, vent stacks, and
electrical system.
H
Lightning can induce electric and magnetic fields into structures
and portions of wiring. The length of a conductor affected by the
magnetic field of a lightning strike may exceed two miles.
Be Alert and Aware of the Effects of Lightning
H
When lightning strikes a conductor, which in turn introduces
current into an area some distance from the ground strike point,
equipment can be damaged and personnel injured if they
become an indirect path in the completion of the ground circuit.
H
Conductors such as the braided shields of cables or unshielded
wire, will have significant transient currents flowing in them in
regions exposed to the electric field effect of lightning.
H
Induced voltages can cause wiring insulation breakdown at
connectors and in electrical components, or breakdown of air.