2015年10月28日星期三

New situation of the flexible cable industry is overwhelming

Today, the flexible cable industry in our country is on the way to change into a cable power nation, is a great historical turning point, the flexible cable industry and a flexible cable production enterprise will face the severe challenge and a rare historical opportunity. Although the prospect of the enterprise is not the same, but one thing is common, that is not in turn wins, will in turn be eliminated; Not in turn, will in turn backwards. The flexible cable production enterprise shall recognize the situation, seize the opportunity, take all kinds of effective ways and methods to actively join to the transformation and upgrading.
Trend 1, transformation from ordinary industry to focus industry
At present, the production of conventional wire and cable are numerous small and medium-sized enterprises, the market saturation, corporate profits are diluted, but shipbuilding, railway, petroleum, metallurgy, new energy industry needed special wire and cable demand has increased year by year. Therefore, there are conditions of small and medium-sized enterprises can choose the traditional industry to the general supply, to enter the key industries and special industries, to enhance enterprise's competitive ability, reduce the management risk.

Trend 2, transformation from low-end products to high-end products
Our country is the world's largest producer of wire and cable, and the demand, overcapacity, but the low-end market high-end market occupied by a foreign enterprise for a long time. To this end, wire and cable manufacturing enterprises is urgent from aspects such as technology innovation to accelerate the transformation and upgrading, so as to occupy more high-end market.
Trend 3, transformation from the traditional sales mode to the electronic commerce mode
Alibaba to create electricity mode, no doubt, is the world's a miracle in the field of electricity. From traditional marketing to e-business transformation is also the trend of The Times of wire and cable industry in China. The wire and cable manufacturing enterprises need to change idea as soon as possible, actively involved in the electricity business operating model of exploration and practice.
Trend 4, transformation from industrial economy to service economy
Now many developed countries has been into a new stage of service economy, our country is also from the industrial economy to a service economy era. Wire and cable production enterprise shall comply with this trend, the positive efforts to service the economic transformation. Wire and cable manufacturing enterprises from the industrial economy to a service economy transformation, not only put in time and energy in the "manufacturing", use brain on the "services", even more on the integration of the two. A simple manufacturing stage, providing customers with "manufacturing + service" overall solutions, will be packaged together to sell products and services, implementation of service "manufacturing" profit pattern.
Trend 5, transformation from extensive management to fine management
Wire and cable manufacturing enterprise transformation and upgrading is dependent on the transformation of the mode of operation and management, from "extensive" to "fine". Extensive management to fine management transformation, the purpose is to improve enterprise the elements of effective integration, lean control, continuous improvement of management ability, go the way of modern enterprise management. Management style from simple, extensive to intensive, cheaper; From superficial to deep; From "similar" to the index, quantification, and accurate; From a lack of clear goal, blind to the business goal, scientific planning and enterprise development. Through the transformation and upgrading of management gradually realize the index system, working procedure, post standard, the production site, operation process, the target market and customer management link of refinement.
Fine management cannot leave the advanced management tools and methods, the entire budget management, employee performance management, total quality management, lean production management and information management, is the inevitable path of transformation and upgrading of wire and cable manufacturing enterprises. Reduce costs, improve efficiency, reduce risk is the focus of the fine management. Wire and cable manufacturing enterprises should also be paid close attention to financial status, especially the income, cost, profit and cash flow index, make the enterprise management level, enterprise management conditions continue to improve.

2015年10月13日星期二

Instruction and application scope of Rubber cable

Rubber cable consists of many strands of fine copper wire as the conductor, the outsourcing of the rubber insulation and rubber sheath a soft removable cable varieties. Rubber cable is widely used in all kinds of electrical equipment, such as household appliances, electric machinery, electrical apparatus and instruments of mobile power, and can be used in indoor or outdoor environment conditions. According to the cable by external mechanical forces, on the product structure is divided into light, medium, and heavy three, on the cross section are appropriate. Generally light rubber sets of cables used in household appliances, small electric equipment, soft, lightweight, flexible; Medium-sized Rubber cable in addition to the industrial use, widely used in rural electrification, the heavy cable used to such as port machinery, searchlight, agricultural large hydraulic irrigation and drainage pumping station and other places. This kind of product has good generality and series specifications complete, good performance and stability.


Rubber cables can be divided into heavy rubber flexible cable, medium-sized rubber soft cable, light rubber soft cable, waterproof rubber soft cable, electric welding machine cable.
Welding cable applies to exchange does not exceed 200v voltage and pulse peak 400v dc arc welding machine with the secondary side connections and electrode holder. It is suitable for electric welding machine secondary side wiring and connected to the electrode holder is special cable, ac rated voltage not over 200 v and pulsating dc 400v peak. Structure for single core, adopt more flexible conductor composite ground is made. Outside the conducting wire core of heat-resisting polyester film insulating tape around the package, the outermost layer made of rubber insulation and sheath as a protective layer.

2015年10月7日星期三

Control cable distributed capacitance parameter testing

As prescribed in article 141715 of the SGC 18 counter measures, for the long cable tripping circuit must be done to prevent the length of cable capacitance influence and the measures to prevent exports relay maloperation. So for the protection of control cable to use count how many meters long cable, hundreds of meters long cable capacitance is how much, cable manufacturers generally do not provide this parameter. For this, firstly analyzes the different cable conductor space layout structure and the relationship between the distributed capacitance, formulated the equivalent distributed capacitance circuit, and then according to the equivalent circuit of the measured part of the distributed capacitance parameter of the cable, on this basis, according to the equivalent circuit software simulation mathematical model is established, simulated proofreading, verified the validity and the feasibility of testing method, the equivalent circuit, in turn, is measured by the method of the distributed capacitance parameter of the control cable for a variety of protection, the statistical regularity of [123].
The basic structure of control cable, is generally composed of conductors, insulating layer, around the bag, filling material, shielding layer and sheath.Due to the applications of control cable is different, the material of each part is different, PVC insulated PVC sheathed control cable, it is suitable for laying indoors, in cable trench, pipelines and other fixed places, and is suitable for the requirements of the flame retardant PVC insulated flame-retardant control cable, etc.
According to the control cable shielding effect to differentiate, can be divided into KVV type copper core PVC insulated PVC sheathed control cable, KVVP type PVC insulated PVC sheathed braiding screened cable, KVVP2 type PVC insulated PVC sheathed copper tape screened cable, KVV22 type PVC insulated PVC sheathed steel tape armoured shield cable, etc.
Control cable structure
Some general protection with control cable in the majority with 2,4,7,8,10,12,14 core, wire cross-sectional area 1115215, 4 and 6 was common. Current voltage circuit was 4 * 4 commonly used with shielding control cable, control circuit used 7 x 215 was and 7 x 115 was shielded control cable.