BS EN IEC 62271-209:2019

What is BS EN IEC 62271‑209 - Cable terminations and the gas-insulated metal-enclosed switchgear about? 

BS EN IEC 62271 is a series of international standards on high-voltage switchgear and controlgear that focuses on fluid-filled and dry-type cable connections.  

BS EN IEC 62271‑209 is the 209th part of the BS EN IEC 62271 series of documents that provides information regarding the establishment of electrical and mechanical interchangeability between cable terminations and the gas-insulated metal-enclosed switchgear and to determine the limits of supply. 

NOTE: BS EN IEC 62271‑209 covers the connection assembly of fluid-filled and extruded cables to gas-insulated metal-enclosed switchgear (GIS), in single- or three-phase arrangements where the cable terminations are fluid-filled or dry-type and there is a separating insulating barrier between the cable insulation and the gas insulation of the switchgear. 

NOTE: BS EN IEC 62271‑209 does not cover directly immersed cable terminations, as described in CIGRE brochure 89 [4] 1. 

Who is BS EN IEC 62271‑209 - Cable terminations and the gas-insulated metal-enclosed switchgear for? 

BS EN IEC 62271‑209 on switchgear, control gear and assemblies are applicable to: 

• Switchgear and controlgear designers 
• Cable system designers 
• Electrical and mechanical engineers 
• Manufacturers of electrical insulation devices 

Why should you use BS EN IEC 62271‑209 - Cable terminations and the gas-insulated metal-enclosed switchgear? 

Cable termination is the equipment fitted to the end of a cable to ensure an electrical connection with other parts of the system and to maintain the insulation up to the point of connection. 

BS EN IEC 62271‑209 navigates you through the design and construction of gas-insulated cable termination. 

BS EN IEC 62271‑209 ensure the supply limit of the pressure filling of insulating gas fluid-filled and dry-type cable terminations in the cable connection enclosure. 

Various test methods are described in BS EN IEC 62271‑209 on the insulator of a cable termination such as electrical type test in a single-phase enclosure and in a three-phase enclosure, electrical type tests on the insulator, leak rate type test, pressure and visual inspection test. 

BS EN IEC 62271‑209 clarifies on rules for transport, storage, erection, service and maintenance of the cable termination. 

Overall, BS EN IEC 62271‑209 guides you through the design and installation of a switchgear and control gear connection of a cable to interconnect two cable ends both electrically and physically to ensure a proper liquid flow of solder around the jointing parts. 

What’s changed since the last update?  

BS EN IEC 62271‑209:2019 supersedes BS EN 62271‑209:2007. BS EN IEC 62271‑209:2019 includes some technical changes with respect to BS EN 62271‑209:2007. These include: 

• Addition of a definition for plug-in cable termination, filling pressure and minimum function pressure for insulation 
• An additional dielectric type test for plug-in cable termination was added; also pressure type test well as a leak rate test on the insulator of a cable termination was implemented 
• New clause about safety practices 
• New clause about the influence of the product on the environment 
• Mechanical forces applied on the flange of the cable connection enclosure.