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What is the difference between FR4 and polyimide?
2025-03-17 | By: ZTELEC-www.ztelecgroup.com | 72clickFR4 and polyimide (PI) are two high-performance materials widely used in the electronics industry. Each has unique properties and application areas. What is the difference between FR4 and polyimide ? 1. Material composition FR4 is mainly co...
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Phenolic back-up sheet┃Insulation material
2025-03-17 | By: ZTELEC-www.ztelecgroup.com | 173clickCold stamping board is a board made by special process. It is usually made of raw materials such as paper and resin by hot pressing. It has excellent insulation, mechanical and processing properties. Cold stamping board is so named because...
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Bakelite Sheets: Properties, Uses, and Where to Buy
2025-03-13 | By: ZTELEC-www.ztelecgroup.com | 128clickBakelite sheet is a phenolic laminated paperboard, which is made by hot pressing bleached wood pulp paper after being impregnated with phenolic resin. Its thickness ranges from 3 to 50 mm, and its regular sizes are 10302030, 10402080, 12202...
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How much can a transformer be overloaded?
2025-03-12 | By: ZTELEC-www.ztelecgroup.com | 57clickTransformers can typically handle overloads up to 10-20% of their rated capacity for short periods, depending on insulation class and cooling method. Overloading beyond this threshold can lead to overheating, reduced lifespan, and potential ...
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What is phenolic paper sheets?
2025-03-11 | By: ZTELEC-www.ztelecgroup.com | 51clickWhat is phenolic paper sheet? Phenolic paper sheet is a type of board that uses phenolic resin as a binder and presses multiple layers of paper or paperboard through a specific process. Phenolic resin is a thermosetting resin made by polyco...
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What are the safety considerations in installation of an oil immersed power transformer?
2025-03-07 | By: ZTELEC-www.ztelecgroup.com | 166clickExplore crucial safety considerations for the installation of oil immersed power transformers. This comprehensive guide covers essential factors such as fire hazards, environmental impact, grounding practices, proper handling, and maintenanc...
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