Page 13 - Pipelines

lightning strike

earth fault / short-
circuit current

insulating flanges
earth electrode earth stray currents caused by earth
electrode electric railways electrode

pipeline
insulating joint

EXFS 100 / EXFS 100 KU Isolating spark gap

• EXFS 100 spark gap certified according to ATEX (94/9/EC) and IECEx
• Safe use in Ex zone 1/21 and 2/22
• Suited for non-sparking connection to pipelines, insulating flanges or insulating joints in hazardous areas
• High a.c. discharge capacity, low sparkover voltage
• Suitable for protecting insulating joints or flanges tested to class 2 / 2.5 kV rms
• Transient: 100 kA (10/350 µs) and 100 kA (8/20 µs)
• Temporary: 500 A / 0.2 s
rms

EXFS 100 Isolating spark gap
Type Part No.
• Aboveground isolating spark gap for EXFS 100 923 100
protecting aboveground insulating joints
• Easy maintenance/inspection thanks to
aboveground installation

EXFS 100 KU Isolating spark gap
Type Part No.
• Buried isolating spark gap for buried EXFS 100 KU 923 101
insulating joints
• High maintenance effort

EXFS Coaxial connection box
Type Part No.
• Connection box for coaxial (low-impedance) NAK SN4631 999 990
connection of EXFS 100 isolating spark gaps
• Aboveground installation for protecting
buried insulating joints
• Easy maintenance/inspection thanks to
aboveground installation

More protection solutions are available on request. Please send an e-mail to [email protected] 13