MYERS MP Series, Инструкция по установке, эксплуатации и обслуживанию

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79 Load:
The resistance in a circuit. In a typical traffic intersection the load is the signal heads and
the electrical equipment housed in the signal cabinet.
Maintenance Free Battery:
A sealed battery that requires no service. The battery is sealed so it requires no water to
be added.
MPP:
Myers Emergency Power Systems
OHM:
Unit of electrical resistance named after George Ohm. An ohm is a resistance that
produces a potential difference of one volt when a current of one ampere is flowing
through it.
Ohmmeter:
A device or instrument for measuring resistance in an electrical circuit.
Polarity:
All of the electrical equipment in a system has been designed with proper A/C polarity
in mind. A specific leg of the A/C line has been dedicated as the positive (sometimes
referred to as hot) conductor and the other leg as the negative (sometimes cold) or
neutral.
Resistance:
The opposition of a circuit or conductor to allow the passage of electrical current.
RFI:
Radio Frequency Interference
Sine Wave:
A waveform is a representation of how alternating current (AC) varies with time. The
most familiar AC waveform is the sine wave, which derives its name from the fact
that the current or voltage varies with the sine of the elapsed time.
Volt:
The volt (symbol: V) is the SI derived unit of electric potential difference or electromotive
force. It is named in honor of Alessandro Volta.
Watt:
Unit of measurement for electrical power. It is named in honor of James Watt