Pollution classes and the mm/kV creepage bands, explained against IEC 60071-1 and IEC 60507, with a worked 66 kV example and a field ESDD procedure.
Twelve things to verify before a polymer insulator order goes into production, from creepage distance and core strength to type test reports and batch sampling.
When we talk about composite insulators used on power lines and in substations, their overall performance, service life and operational reliability all start with raw material selection. Anyone engaged in power equipment manufacturing, on-site maintenance or project procurement knows that…
If you have ever walked past overhead power lines or stepped inside a local substation, you must have seen the insulating parts mounted on poles and electrical frames. For decades, porcelain and glass insulators were the go-to choice for power…
If you work in power engineering, procurement or on-site line maintenance, you have likely heard both composite insulator and polymer insulator used interchangeably. A lot of field staff and new buyers even treat them as two totally different products, which…
1. Overview of Laser Cleaning Technology for Composite Insulators Laser cleaning has gradually become a preferred maintenance method for silicone rubber composite insulators in recent years. Compared with traditional manual scrubbing, high-pressure water washing and chemical cleaning, this non-contact technology…
Coastal areas pose severe challenges to power facilities. These places have heavy salt fog, high humidity, strong ultraviolet rays and frequent typhoons. Chloride ions penetrate into metal parts and cause electrochemical corrosion. Then the metal will crack. Traditional metal power…
