Canadian Agricultural Products. To check for restrictions on fruits and vegetables from Canada, you can search the FAVIR database at www.aphis.usda.gov/favir/. Click the âFresh Fruit and Vegetablesâ link to the right to learn how to use the database.
The standard voltage for the telephone system is 48 volts DC. Ringing voltage is much higher, around 90 volts AC at a low frequency. When you place a load of about 600 ohms on the line, you are off hook or connected. Telephone ringer voltage is 50.5 volts at standing and -50.5 volts at ringing.
Voltage, Frequency and Plug/Outlet Type in Portugal. Electricity in Portugal is 230 Volts, alternating at 50 cycles per second. If you travel to Portugal with a device that does not accept 230 Volts at 50 Hertz, you will need a voltage converter. There are three main types of voltage converter. Resistor-network converters will usually be advertised as supporting something like 50-1600 Watts.