I. Brand recommendation of pvc electrical bushing
1, Piersa ABM (Jiangsu famous brand, Jiangsu famous trademark, top ten brands in pipeline industry, member of China Plastic Pipeline Professional Committee, president of Suzhou Wujiang Pipe Industry Association, standard-setting unit of decoration materials industry, Jiangsu Piersa Pipe Industry Co., Ltd.)
2. Wei Xing Watson (a subsidiary of Wei Xing Group, with advanced PP-R pipeline technology, an earlier/larger plastic pipeline enterprise in China, listed company Zhejiang Wei Xing New Building Materials Co., Ltd.)
3. Sorbonne Pipe Industry (Shanghai famous trademark, top ten pipeline brands, China Nanji designated special products, China quality benchmarking enterprise, new plastic pipeline brand leading enterprise, Shanghai Sorbonne Plastic Industry Group Co., Ltd.)
Two. Specification for PVC electrical bushings
(1) Implementation standard of insulated PVC electrical bushing: JG/T3050- 1998.
Product specifications of PVC electrical bushing: light -205, medium -305 and heavy -405.
1, light -205? Outside diameter? 16mm-50mm
2. Medium -305? Outside diameter? 16mm-50mm
3. Weight -305? Outside diameter? 16mm-50mm
(2) Size and specification of insulated PVC electrical bushing
The nominal outer diameter of a rigid PVC pipe is 50 cm, but the largest flexible PVC pipe is usually 50 mm.
Specification of rigid PVC pipe: GB/T13020-1991.
Specification of PVC hose: GB/T13527.1-1992.
The nominal outer diameter (unit: mm) of rigid PVC pipe is 2.5, 3, 4, 5, 6, ... 355, 400, 450, 500, 560, 630, 7 10, 800, 900, 1000, etc.
(3) The product thickness specifications of insulated PVC electrical sleeves with nominal external diameters of 16, 20, 25, 32 and 40 respectively are as follows:
The outer diameters of 1 and 16 are: 1.00 (light, allowable difference +0. 15), 1.20 (middle, allowable difference +0.3),/.
The medium thickness and heavy (insignificant) outer diameter thickness of 2.20 are 1.25 (medium thickness, allowable difference +0.3) and 1.8 (heavy, allowable difference +0.3) respectively.
The outer diameter thickness of 3.25 is 1.50 (medium and allowable difference +0.3) and 1.9 (heavy and allowable difference +0.3) respectively.
The outer diameter thickness of light, medium and heavy in 4.32 is 1.40 (light, allowable difference +0.3), 1.80 (medium, allowable difference +0.3) and 2.4 (heavy, allowable difference +0.3) respectively.
The outer diameter thickness of light, medium and heavy of 5.40 is 1.80 (light, medium, allowable difference +0.3) and 2.0 (heavy, allowable difference +0.3) respectively.
Insulated PVC electrical bushing not only has the advantages of light weight, saving money and beautiful color, but also has the following characteristics:
(1) The inner and outer walls of the pipeline are smooth and the friction coefficient is small.
2. High compression resistance.
(3) Good impact resistance and heat resistance.
(4), moisture-proof and acid-base resistance.
Friends who are familiar with the working characteristics of the power electrician industry will generally pay attention to pvc electrical bushing, which is a very widely used product. It is made of ordinary pvc plastic through a series of complicated processes, so it has irreplaceable advantages of other materials. Its stable performance makes the product not deform or crack even when the external environment temperature changes greatly, which helps to ensure the stable use characteristics and performance to a certain extent, thus protecting the user or the equipment itself from damage. Therefore, the above information is about the purchase of such products, and friends who are interested in understanding can learn to refer to it.