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There is not any silver, but there is copper.
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∙ 10y ago
Joe American
Yes, the contact points inside of the switches are silver.
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When were breakers first used in electrical panels?
If you are talking about early electrical wiring the answer is no. Fuses were used. While they come in many different shapes, sizes and materials, in general a fuse is a device with a strip of a "sacrificial" material (such as zinc, copper, silver, aluminum or some alloy mix) enclosed within some non-combustible fixture or device that is designed to melt and create an open circuit if the current for which the fuse is rated is exceeded by a predetermined amount. By creating this opening in the circuit, the fuse as the "weakest link" protects the rest of the circuit or what is connected to it. While the speed, breaking capacity and reliability of fuses has improved over time, the basics have not. Circuit breakers are more sophisticated switched fuses that can be reset--unlike these original fuses which would need to be physically replaced when they were "blown".
Why does copper and silver bangles turn green and black respectivly after their worn for many days?
They Tarnish (this is like rusting in iron, but slower). The moisure in your sweat, the warmth in your skin and the oxygen in the air all start to react with the metals. With silver, this makes silver oxide and hydroxide. This is a very slow process and silver tarnishing is very slow. With copper, this moke black copper oxide and green copper hydroxide (comman name verdigris, means green/grey). This process is also slow, but faster than silver. You can see evidence of this on old bronze statues and copper domes, which go green with weather and time.
What circuit breakers will interchange with Murray panel?
Legally, you must use the same brand breaker with the brand panel. They sell Murray breakers at your area electrical contractor shop, but used I am sure. However, square d homeline, siemens ite, GE, cutler hammer BR do fit but will void the UL listing and are dangerous to mix. Upgrade your panelboard. It is old.
What element has the same name as an old fashioned nickname for a police officer?
"Copper."
Why would the voltage drop to 105 in one outlet in your old mobile home?
Check the voltages on the other receptacles in the home. If you find other lower voltages go back and shut that breaker off. Go through out the house shutting off the breakers that have low voltage on them. If other ones are lower see if you can establish if the voltage drop is on the same bus breakers. These will be every alternate breaker. If the breakers that you shut off are every other breaker then the problem is with the incoming utility supply. Give them a call and get them to read the voltage at the meter base. If you can not find any other low voltages in the home then shut the breaker off to that circuit and change the receptacle out for a new one. If the voltage is still low after replacing the receptacle, it could be the breaker that is feeding that circuit.
Will zinsco and gte circuit breakers interchange?
To my knowledge Zinsco/Sylvania breakers are the only breakers that will fit in a Zinsco panel. My recommendation as a journeyman electrician is to have your panel changed out. Those panels are old and outdated, not to mention replacement breakers are expensive. Most newer panels, and breakers are the cost of about 2 replacements.
When were breakers first used in electrical panels?
If you are talking about early electrical wiring the answer is no. Fuses were used. While they come in many different shapes, sizes and materials, in general a fuse is a device with a strip of a "sacrificial" material (such as zinc, copper, silver, aluminum or some alloy mix) enclosed within some non-combustible fixture or device that is designed to melt and create an open circuit if the current for which the fuse is rated is exceeded by a predetermined amount. By creating this opening in the circuit, the fuse as the "weakest link" protects the rest of the circuit or what is connected to it. While the speed, breaking capacity and reliability of fuses has improved over time, the basics have not. Circuit breakers are more sophisticated switched fuses that can be reset--unlike these original fuses which would need to be physically replaced when they were "blown".
Is it necessary to wire for an electric range and dryer if you are using gas to meet code?
I don't think you quite understand your question. If this is new construction, (or redesign), and you are installing a gas range, the gas line has to be installed to code. If you are abandoning already installed electrical wiring, you should either remove the wiring and the circuit breakers or securely seal the ends of the wires with wire nuts and tape and turn off the circuit breakers. It also helps to lable the wires and circuit breakers as "old - not in use".
Could Old transformers contain gold and or silver?
Old transformers just contain copper and iron or steel. Sorry.
What seven elements are metiones in the Old testament?
Copper, Gold, Iron, Lead, Silver, Sulfur, and Tin.
How much silver is in dimes new and old?
U.S. dimes dated 1964 and earlier contain 90% silver with 10% copper. Dimes dated 1965 and after contain absolutely no silver.
What are electric fuzes?
In most places fuzes have now been replaced by circuit breakers. They prevent circuits from becoming overloaded and starting fires. With modern circuit breakers, you just have to flip the switch to turn the electricity back on. Old fuses were like the base of a light bulb, and a filiment would burn out if it was overloaded. Back then, you had to replace a blown fuze with a new one to restore electricity.
What are fuzes?
In most places fuzes have now been replaced by circuit breakers. They prevent circuits from becoming overloaded and starting fires. With modern circuit breakers, you just have to flip the switch to turn the electricity back on. Old fuses were like the base of a light bulb, and a filiment would burn out if it was overloaded. Back then, you had to replace a blown fuze with a new one to restore electricity.
Are old silver dollars pure silver?
All circulating US silver coins were at least 10% copper. Pure silver is far too soft, so it has to be alloyed to stand up to circulation wear.
How old is silver mining?
Silver was one of the first metals after gold and copper to be molded by humans, and silver artifacts have been found in Near Eastern tombs dating back to 4,000 B.C.
What temp will an old silver quarter dollar melt?
Coin silver (90% silver & 10% copper) tends to melt at a slightly lower temperature than pure silver, about 1615 degrees Fahrenheit, compared to 1761 for pure silver.
How do you know if it's made of copper?
copper tarnishes like sterling silver does. copper takes on a greenish color when it ages which is very desirable to owners of stately old homes. in the kitchen or house this tarnishing is not wanted so there are copper cleaners on the market
