Beijing, May 16 (Xinhua) -- The Fire Bureau of the Tianjin Public Security Bureau informed that at 20 o'clock on May 15th, a student dormitory at Tianjin University of Traditional Chinese Medicine ignited a fire. After receiving the alarm, the public security fire control, traffic control and the local Nankai Branch police quickly rushed to the scene to carry out firefighting, rescue and personnel evacuation. Fortunately, no casualties were caused and the cause of the fire was still under investigation. It is understood that the Tianjin University Building Complex is the fourth batch of cultural relics protection units in Tianjin, including the student dorms built in the 1950s and 1960s. The fire department reminded that the current weather is dry, it is the high season of fire. Some old houses or the existence of line problems, as well as home appliances in the service life is also easy to short-circuit caused by a long time after the fire, please the public to regularly check the home electrical lines, in case of line fire, do not use water to save wires, home appliances, power should be the first time , withdraw to a safe area and wait for 119 to arrive.
News about the circuit accidents in the old house can be said to be commonplace. Then the owners who bought the old house can't help asking these questions about home improvement circuit reconstruction:
1. When the home space of the old house is to be renovated, does the home improvement circuit need to be completed? If you only need to partially modify the circuit, which do not need to be changed, which must be changed?
Experts answer: Not all old home circuits must be modified. Some old houses do not have a long service life, and in recent years, the property has undergone secondary circuit capacity expansion. Consumers only need to replace the sockets connecting high-power electrical appliances such as air conditioners with 4mm2 wires.
2. In the home improvement circuit, which materials can be saved? Which can not save?
Experts answer: home improvement circuit generally use a copper wire with a cross-sectional area of ​​2.5mm2, but to save expenses, the lighting circuit wire with a cross-sectional area of ​​1.5mm2 copper wire can be replaced without change. If the old house's lighting and outlet lines are aluminum, it must be changed to copper. When materials are used, they can't just hold a cheap mind and buy quality materials that are not up to standard, leaving hidden dangers for future electricity safety. Should use the regular manufacturer's products with regular logos.
3. High-power electrical circuit should be dedicated to it?
Experts answer: When the old house is remodeled and renovated, high-power electrical appliances such as air conditioners and water heaters should go through a circuit with a cross-sectional area of ​​4 mm2, and PVC insulated wire protection pipe should be used when embedding. In this way, it can prevent the formation of hidden dangers of wire heating when used together with other electrical appliances, and can also protect the use of electrical appliances.
4. How many suitable home improvement circuit sockets should be? How to check the correct connection of the three sockets?
Experts answer: The new national standard stipulates that the number of fixed sockets in civilian houses should not be less than 12. Many existing homes have a number of fixed sockets that do not meet this standard. If a large number of mobile sockets are used, when the current load increases, the mobile sockets will have abnormally high temperatures due to poor contact, which will cause potential hazards for electric shock and electrical fires. . When testing the correctness of the zero line, fire line and ground connection of the three sockets, consumers can use a single three-pole socket detector for self-testing. The shape of the detector is similar to that of the three plugs. Plug it directly into the three sockets. The indicator light will be detected and lighted according to the wiring conditions. Consumers only need to check the socket wiring according to the instructions on the lighted condition. is it right or not.
5. What is the role of the hydropower reform budget bill? What should you pay attention to when filling out?
Experts answer: Home improvement circuit reform bills can enable both parties to clarify the contents and costs of circuit modifications. Within three days of the circuit transformation start, the foreman should fill out the budget statement in detail and issue a notice of hydropower reform to consumers. If you simply give a verbal notice, if there is a problem, there is no evidence to follow.
In addition, after all home improvement circuits are completed, tests such as power on, lighting test, and switch control should be performed. Home decoration companies should provide wiring work drawings to consumers.
Editor's summary: There are many homes that have been refurbished in old houses, and as an important part of residential renovation and home improvement design, circuit reconstruction must pay attention to the problems of home improvement circuit renovation and electrical safety. After all, life safety is first, and of course, factors such as practicality and family preference should also be taken into account.
Circuit Design Two-Bedroom Kitchen Renovation Home Improvement Hydropower Renovation
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