News dynamics-Hangzhou Hengma Power Technology Co., Ltd

Jiangsu national network of a substation cable pipe waterproof sealing overhaul, from a new look

Two days ago, travelling to a substation in Jiangsu State Grid, after a field survey and research, deeply touched. Jiangsu is located in the lower reaches of the Yangtze River, mostly for the plains, the region's water network, rainfall is more groundwater is relatively rich, the impact of external infrastructure piling and pouring leads to the outdoor maintenance wells in the accumulation of water in the case of the worse, the accumulation of water through the PVC pipeline into the basement of the substation interior, a serious impact on the installation of electrical equipment within the substation, delaying the power delivery time. After the owner fully understood the waterproof effect of our company's inflatable cable duct sealing device, and after our survey gave a number of operational solutions, and finally timely replacement of the original traditional blocking mode (fire clay), the use of this new type of blocking products, a timely and effective solution to the problem of waterlogging, so that the substation electrical equipment can be installed smoothly. Nowadays, more and more State Grid projects use Hengma inflatable cable duct sealing device to replace the original pipe blocking material. Advantages of inflatable cable duct sealing: 1. fast installation, easy removal, not easy to damage the cable and pipeline; 2. low construction costs, without water, power support, without the need for traditional construction tools; 3. good sealing effect, effectively preventing the accumulation of water, sediment, insects and rodents, harmful gases and other substances into the pipeline; 4. not subject to acidic and alkaline environment, not subject to the influence of pipeline water flow; 5. flexible sealing can effectively solve the problem of heat expansion and cold shrinkage of the pipeline and the sealing material. Flexible plugging can effectively solve the problem of thermal expansion and contraction of pipe and plugging material, extend the time limit of waterproof sealing of pipe holes, and reduce the cost of late maintenance; 6. Spare empty pipe, single cable pipe holes, and multiple cable pipe holes can be installed; 7. Can withstand a small range of cable shifting, and has a certain degree of seismic capacity.

1708 Shexian underground pipe waterproof sealing example

The main problems encountered: 1. Pipes are mostly extruded deformation, its shape change more than 5%; 2. Many pipeline pipe mouth split, cable pipe wall appears serious damage; 3. Pipeline wells in the accumulation of water is serious, through the connected cable pipe makes the various underground cable pipe are water; 4. Many reserved pipe for the later laying of cable reserved, can not be blocked fixed, need to be flexible; 5. Cable not specification through the pipe, resulting in many Cable close to the pipe wall; 6. Underground cable well environment, construction difficulties; 7. Empty pipe, single, fine cable uneven, blocking material is difficult to choose; 8. Wells in the clutter, dirty, messy, miscellaneous; 9. Corner pipe, located in the 90-degree angle is difficult to blocking. 1. inflatable cable pipe sealing device, a new type of cable pipe sealing material, the use of inflatable expansion type extrusion principle, you can fill the various gaps between the cable and the cable wall to achieve a completely sealed degree; 2. inflatable principle can be filled without the need to fill in accordance with the specifications of the pipeline, elliptical, square can be completed to achieve the purpose of sealing the sealing needs to be achieved; 3. because there is no need to fix the blocking of the pipeline mouth, you can arbitrarily Select the pipeline can reach the blocking position, because the blocking pipeline mouth has been broken cable pipeline is one of the preferred blocking material; 4. This device uses polymer soft metal materials, can effectively resist the water immersion, acid and alkali, etc., effectively improve the resistance to ensure that the blocking pipeline inside the clean; 5. Convenient operation, low construction environment requirements, for eccentric cable, the size of the cable has a good sealing The new repeated trial inflatable cable duct sealing device can be used repeatedly on the basis of achieving the sealing conditions, effectively saving the late maintenance, management costs.

Construction site in Hubei

Used for pipe hole blocking, suitable for underground cable wells, distribution cabinets, ships, indoor through-wall cable holes, etc. This product has excellent blocking effect, stable, acid and alkali resistant, can withstand high and low temperatures, waterproof, fireproof, anti-termite acid and rodent tearing. The product has a long service life and can be reused, which effectively guarantees the construction and convenience of post maintenance, and passes a number of inspections and operational tests.

Anhui cable well waterproof plugging

Factory test test method 1 test conditions 1.1 The test shall be carried out in accordance with the provisions of this standard, and the test temperature, relative temperature recorded in the test report.1.2 Test room temperature: 20 ℃ ~ 25 ℃ 2 sampling 2.1 This product is based on a group of 1,000 pieces as a batch.2 2 specimens shall be taken from the production line exported from the original packaging or in the large packages about to be shipped out of the factory in accordance with the number of 1% of the sampling number of sampling. 2.3 Before the test, the sample should be placed in a sealed at standard room temperature for a period of not less than 2 hours. 2.4 cable pipe should be cleaned of impurities, sludge and burrs, etc. 2.5 specimen installation into the cable pipe, should check the pipeline hidden trouble eliminator and pipe tightly, more than one cable through the pipe is also a bolt to check the cable gap whether the filler is intact. 3 types of test types are divided into the form of test and factory test of the two types of tests, the form of test is to ensure that its pipeline hidden trouble eliminator and pipe tightly. The test is to ensure the stability of its pipeline hidden trouble eliminator and the test, factory inspection is the product production is completed when the quality inspection. Packaging, marking, movement and storage 1 production of finished products should take a clean, dry storage, box packaging and accompanied by a certificate of conformity and product instructions. 2 product packaging should indicate the name of the manufacturer, origin, product name, specifications, product trademarks, product standards and date of production. 3 product movement and transmission, should be made waterproof and fireproof sun. 4 product packaging should be used to ensure the stability and stability of the pipeline hazard eliminator.

Pipeline Hazard Eliminator Product Description

Description：Pipe line hidden trouble eliminator, also known as cable pipe sealer, is mainly made of injection moulded silicone rubber and high-performance flame-retardant nylon, assembled by stainless steel screw. High-performance nylon and silicone rubber has, stable mechanical properties, high weather resistance, reusable, acid and alkali resistance, flame retardant can effectively prevent the sealing interval within the water, gas leakage and rodents and ants gnawing, as well as silicone rubber inherent flexibility of the full range of pipelines, cables, fibre optic cables, as well as artificial wells behind the safety of the electrical equipment to provide an effective safeguard, so as to enhance the performance of the network pipe operation, reduce customer maintenance costs. This product is suitable for 500KV substation power cables, control cables in and out of the pipeline mouth and directly buried cable pipe network, cable wells in the pipeline mouth cable gap blocking, power distribution room power cables, control cables, communication cables in and out of the pipeline mouth blocking. Transformer area high and low voltage cable pipe import and export cable gap blocking. Applicable to a variety of materials and pipe diameter of the cable pipeline, to eliminate power pipeline safety hazards. Products / Features: 1, flexible blocking material, fixed blocking does not affect the pipe wall and cable protective layer; 2, the product is environmentally friendly, safe, corrosion-resistant, anti-ultraviolet and aging; 3, the product flame retardant level of FV0, can be effectively isolated from the open flame; 4, suitable for any material pipeline; 5, the installation of the construction of a convenient, marketable common tools can be; 6, can be reused.

Hefei substation cabinet dehumidification blocking

Variable / distribution cabinets and other dehumidification blocking its we must know the main cause of the cabinet will have moisture, water droplets in the body of the original cause. The main reason is due to the cabinet and the bottom of the cable trench temperature difference caused by the threading cable hole is one of the need to be blocked. Site blocking and construction completion chart 1. Determine the bottom of the construction and construction; ① confirm the location of the gap and spacing; ② confirm the bottom of the rust and rust measures; ③ determine the bottom of the perforated cable holes after the remaining spacing; 2. The bottom of the unevenness and rust rust rust treatment; 3. According to the needs of the bottom of the iron plate and the cabinet links out of the stacked tape; 4. With the tape wrapped around the cable gap and filling; 5. 5. Fill the holes with tape or lay the rest of the holes with tape; 6. Confirm the gap at the bottom, and pour the plastic after filling the gap with tape; 7. Finish sealing after solidification.

Anhui JP cabinet blocking site

JP cabinet blocker is a kind of mechanical device specially designed for blocking the inlet hole of JP cabinet, which effectively reduces the distance between the pipe hole and the inlet cable, and prevents small animals, water and so on from entering into the interior leading to substation accidents. Suspended cabinet, box, vulnerable to small animals through the connection cable into the chassis inside the substation accident, JP cabinet blocker can effectively achieve protective measures to reduce the occurrence of substation accidents.

JP cabinet blocking

In view of the current market JP cabinet prevails some of the problems, such as small animals through the JP cabinet holes to bring the dead branches and debris inside the cabinet, etc., will damage and affect the normal use of the JP cabinet. Serious may cause the switch inside the JP cabinet burned, causing large-scale power outages, can effectively solve the current problems of JP cabinet, greatly reducing the economic losses of the power supply department and the load workload of electricians, and effectively improve the power supply safety efficiency and service level. Features: Innovative technology, green environmental protection, ultra-long life, repeated use. Advantages: 1, to avoid small animals, etc., greatly reducing the JP cabinet cabinet environment adverse effects, to provide a clean working environment for the cabinet; 2, waterproof, anti-open flame, better protection of JP cabinets from external factors, reduce the rate of electric power accidents; 3, the service life of more than 15 years, simple, practical and convenient.

Inflatable cable duct sealing device

What are the bad effects of cable waterproof sealing is not good? In the past, the cable pipeline did not pay attention to the problem of waterproof sealing, the cable has long been soaked in rainwater, rats bite and other factors of harm, the relevant departments negligent management, resulting in the rainy season when the waterlogging occurs, it will cause large-scale blackouts, power outages, bringing many disadvantages to the people. Product installation site photos Product features This product is a flexible sealing system. There is a waterproof film on both sides which can withstand high temperature. When inflated to 0.35mpa air pressure, both sides of the film will be close to the pipe and cable, to reach completely waterproof. The inflatable opening contains self-filling gel material, which seals the sealing system when the inflatable tube is withdrawn. Product effect ■ can avoid standing water, sediment, rats and other adverse effects on the pipeline environment, for artificial well operations or underground pipeline construction to provide a cleaner, drier operating environment; ■ can achieve waterproof, acid, alkali, insect bites and other effects, better protection of cables from external factors, reduce the probability of power supply accidents; ■ segmented blocking of the pipeline, to avoid the problem of pipeline circulation, you can Greatly reduce the artificial well pumping and dredging trouble and time, improve operational efficiency; Features and Benefits ■ Installation and disassembly of fast, convenient; ■ Prevent the cable dive shift; ■ empty pipe, single, multiple can be installed and applied; ■ Resistant to harsh environments (salt, acid and alkali and other chemical corrosive substances); ■ product material is stable, will not be with the cable or pipeline wall of chemical reactions; ■ oval pipeline cable can be installed; ■ Applicable to all kinds of PVC, steel (iron) pipe and all kinds of cable ducts; ■ service life of up to 20 years; ■ flexible blocking of cables and pipelines have a more protective effect; ■ working temperature -40 ℃ ~ 75 ℃. Product Selection Table

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