危险区域电气设备安装注意事项汇总.ppt

Spare conductors to be terminated Cable support Incorrect use of tools Equipment is labeled correctly Label to include; The name of the manufacturer or his registered trademark The manufacturer’s type identification The symbol Ex The symbol for each type of protection used The symbol of the gas group for that equipment For group II electrical equipment, the symbol for the temperature class A serial number except for small equipment and accessories All the above photos are indeed from our rig the Hai Yang Shi You 981. It is very important for everyone involved in installations in hazardous areas to have knowledge of the dangers and consequences that one simple mistake or compromise for schedule can soon become a disaster. Installation of Electrical Equipment in Hazardous Areas Denial of Ignition Sources to flammable Gases It cannot be stressed how important the philosophies followed to deny ignition sources to flammable gases are. The smallest ignition source can lead to the most dire consequences……, Both far away – Deepwater Horizon, Gulf of Mexico, April 2010 And close to home - Pingyu Coal Electric Co Ltd, Yuzhou, Henan Province, October 2010 This presentation is based on the International Elecrotechnical Commission’s publication IEC-60079 There are other publications such as the National Electric Code (NEC) in the USA that have also produced standards for hazardous areas but the equipment in this project will be to IEC standards The IEC has over a century of experience producing electrical standards The first hazardous area standards were created for the mining industry and then expanded to include the oil and gas sector IEC standards are not frozen in time but evolve for many reasons such as new materials being produced, technical advances are made and findings from disaster enquires to name but a few These standards are written to provide the best possible protection in the event of a gas escape utilising experience of prior disasters and the lea