Quality wall switch parts directly related to the quality of the switch for fire protection, maintenance and safety, quality assurance of the best selection of major brands of copper wire, wire slot load area is generally: Under normal circumstances, 2 × 2.5 to do the main line , trunk, 2 × 1.5 do single electrical branch, switch lines. Dedicated single-phase air-conditioned with BVV2 × 4, comes with dedicated ground. Wiring line selection, green, yellow color line, tap line (FireWire) with red, white, black, purple either. But in the same line of home improvement projects with color use should be consistent. Application of fire-retardant PVC pipe threading line pipe, wall switches, its wall surface should be smooth, the thickness required to achieve Push finger pinching strength is not broken, and there should be a certificate of competency. It can also be used to make the national standard dedicated galvanized pipe threading pipe. Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. Although conventional wall socket switch is a switch lighting control products, but involves every household, we have many times in the opening day, the closing operation, the button material quality directly related to household electricity safety resistance, but also the title is family security "little guardian" of the. In particular, in the choice of wall switch in each room, be sure to pay attention to the safety switch, to buy well-known brands and national mandatory product certification CCC mark and enterprise code, high-quality wall switch products. Here also I suggest that you use five methods we offer to buy selector switch products: First, we should first look at its exterior part. Generally good quality wall switch, its fire resistance and moisture resistance and anti-impact performance are relatively high. Second, you look after its appearance, ktv wall switch, we need to try his hand on the switch, rather than under the toggle tight feeling light astringent, spring moderate hardness, turning on and off have more intensity. Third, the Prosecutor had the appearance after watching for different rooms and different environments and purposes, there are special requirements to pay attention to choose different function wall switch. Fourth, in addition to these, the last is to identify and pay attention to the product on the base of the wall switch contact material has not been tested 4,000 times normal operation, electrical wall switches, wall switch products used in the presence or absence of silver cadmium oxide, silver and zinc oxide and silver alloys. Hebei Tianyi Electric Co., Ltd. adhere to quality, Shenyang wall switch and dedication to provide customers with advanced, safe, reliable and satisfied products in the peer industry adopted the ISO9001 quality system, all products through national mandatory certification and other products certification. Above content provided by Hebei Tianyi Electric Co., Ltd., we hope to help a friend in the same industry. ktv wall switch | wall switch | Vicki appliances provided by the Hebei Tianyi Electric Co. Road Zhiyuan, temper forward. Hebei Tianyi Electric Co., Ltd. (www.tianyidq.com) aims to become and you win symbiosis, strategic partners to move forward, more determined to become the most influential of the wall switch business, and you leap together to success!