As the landmark venue for the Beijing Olympic Games, the "Bird's Nest" and "Water Cube" are extremely strict in the selection of building materials. After many investigations, demonstrations and evaluations by experts, Zhenhui Firefighting stood out among many domestic and foreign companies bidding for its high quality product quality, large-scale production capacity and perfect design plan. It is reported that before the end of this year, Zhenhui Firefighting will provide more than 20,000 pieces of pavilions for the National Stadium, Olympic Shooting Hall, Olympic Wrestling Hall, Olympic Badminton Hall, Olympic Moon Stadium and National Convention Center. Fire emergency sign lights and fire emergency lights.
According to reports, Zhenhui Fire has made outstanding achievements in independent innovation and technological progress in recent years. This time, the fire light provided for the Olympic venues, all the internal light sources use high-brightness LEDs, which have low brightness and low consumption. The power consumption is only 3 watts.
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A Power Cable is an assembly of one or more electrical conductors, usually held together with an overall sheath. The assembly is used for transmission of electrical power. Power cables may be installed as permanent wiring within buildings, buried in the ground, run overhead, or exposed.
Early telegraph systems used the first forms of electrical cabling, transmitting tiny amounts of power. Gutta-percha insulation used on the first submarine cables was, however, unsuitable for building wiring use since it deteriorated rapidly when exposed to air.
Modern power cables come in a variety of sizes, materials, and types, each particularly adapted to its uses.[6] Large single insulated conductors are also sometimes called power cables in the industry.
Some power cables for outdoor overhead use may have no overall sheath. Other cables may have a plastic or metal sheath enclosing all the conductors. The materials for the sheath will be selected for resistance to water, oil, sunlight, underground conditions, chemical vapors, impact, or high temperatures. In nuclear industry applications the cable may have special requirements for ionizing radiation resistance. Cable materials may be specified not to produce large amounts of smoke if burned. Cables intended for underground use or direct burial in earth will have heavy plastic or metal, most often lead sheaths, or may require special direct-buried construction. When cables must run where exposed to mechanical impact damage, they may protected with flexible steel tape or wire armor, which may also be covered by a water resistant jacket.
4 Core Power Cable, 15kv Cable
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