0
The answer to this question depends entirely on where you live. All voltages quoted are 'nominal', or 'named', voltages and not the actual voltage as you would measure it with a voltmeter. National regulations stipulate how much these nominal voltages may vary.
For example, in the UK, the nominal voltage is 230 V, and the allowable variation is between -6% and +10%. So, the maximum (actual) allowable voltage is 253 V.
In some residences, e.g. Cyprus, a three-phase supply is common for residences, in which case the maximum nominal line-voltage is 400 V, with a nominal phase-voltageis 230 V.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Analysis of digital and analog circuit?
Analog circuit continuous uses the time voltage and currents while digital circuits are sometimes called the on/off and high/low control of voltage in circuits.
Why is low voltage circuits separated from higher voltages?
avoid crosstalksafety, a short between them could cause hazardous voltages where none are expectedprotect low voltage equipment from damageetc.
What causes maximum secondary coil voltage?
I would hazard a guess and say that it is a bad coil.
What color is used for phasing medium voltage?
In the electrical trade, there is no such thing as "medium" voltage. Line voltage is broken down into "low" and "high". Low line voltage is 220/110 volt power. In a single phase supply the only required colors are white or grey for the neutral or grounded conductor and green or bare copper for the earth ground, or grounding conductor.In three phase power supplies, low line voltage (220/110) is marked : Phase A -black, Phase B - red, Phase C - blue.In three phase high line voltage (480/277) conductors are marked : A -brown, B - orangeC - yellow. Neutrals are still marked white or grey. White is normally used for low voltage neutrals and grey for high voltage neutrals.In the trade, "low voltage" is considered circuits below 50 volt, such as 12 and 24 volt control circuits, fire alarm, etc.
Why the iron losses absent in short circuit test?
Because a short-circuit test is done at very low voltage to check the transformer windings on their maximum current. The low voltage ensures that the magnetic flux in the transformer's iron core is very low so that the eddy-current losses, usually known as iron losses, are negligible.
Do relays use high voltage to control low currant circuits?
Low voltage to operate relay controlling high CURRENT circuits (currant is a dried fruit).
What are the 2 advantages of 24 Volt current?
Low voltage circuits are any circuits under 30 volts, usually 24 volts. 24 volt circuits are usually control circuits. The amount of current in these systems is usually small, under 5 amps. Since the voltage and amperage is very low, wiring can be much smaller and therefore much cheaper to install than "line" voltage wiring. Low voltage is also much safer.
Analysis of digital and analog circuit?
Analog circuit continuous uses the time voltage and currents while digital circuits are sometimes called the on/off and high/low control of voltage in circuits.
Why is low voltage circuits separated from higher voltages?
avoid crosstalksafety, a short between them could cause hazardous voltages where none are expectedprotect low voltage equipment from damageetc.
What is considerede low voltage?
Low voltage is a relative term, as there is no 'level' at which a voltage is rated 'low'. Electrical safety codes define low voltage as circuits that do not require the same protections necessary at higher voltages.
What might cause low maximum secondary coil voltage?
What might cause low maximum secondary coil voltage?Low primary input voltageLow primary resistanceWide spark plug gapsOpen spark plug wire
What is the maximum amperage usually encountered by a low-voltage thermostat?
2 amps
What is the maximum amperage usually encountered by a low voltage thermostat?
2 amps
What is a major disadvantage of series circuits?
voltage continausly decreases, and therefor all equipments will get voltage lower than rated, this low voltage may damage them or equipment will not work properly.
What might cause maximum secondary coil voltage?
What might cause low maximum secondary coil voltage?Low primary input voltageLow primary resistanceWide spark plug gapsOpen spark plug wire
What causes maximum secondary coil voltage?
I would hazard a guess and say that it is a bad coil.
What has the author Christian Piguet written?
Christian Piguet has written: 'Low-power CMOS circuits' -- subject(s): Complementary Metal oxide semiconductors, Computer-aided design, Low voltage integrated circuits 'Low-Power Electronics Design (Computer Engineering)'
