For bridging buried insulating joints in cathodically protected pipe sections of pipelines
For protecting insulating joints in potentially explosive atmospheres
Voltage drop across the coaxial cable is up to three times lower than across a conventional connection cable. Depending on the insulation strength of the insulating joint, the length of the connection cable can be up to 5 m
The integrated EXFS 100 spark gap is thus inspected and replaced outside the Ex area / above ground (no excavation work needed)
Version for lightning equipotential bonding according to IEC 62305 in hazardous areas
Spark gap is easily accessible since cables do not have to be disconnected and insulations do not have to be removed during inspection
Delivery does not include fixing accessory
Coaxial Connection Box with EXFS 100
Coaxial connection of isolating spark gaps with a low sparkover voltage for lightning equipotential bonding according to IEC 62305.
1 Produkt
Obj. č.999990
NAK SN4631
GTIN4013364153776,
Číslo celního sazebníku (EU):85371098,
Váha brutto:
5.52kg,
Balící jednotka:1.00pc(s)
Coaxial connection box with integrated Ex isolating spark gap EXFS 100 according to IEC 62561-3:2011 (81/387/CDV) / EN 62561-3 for coaxial connection to insulating joints and flanges. Ex isolating spark gap with Ex marking according to IEC / EN 60079: Gas II 2G Ex d IIC T6 IEC / EN 61241: Dust II 2D Ex tD A21 IP67 T 80°C Lightning impulse current (10/350): 100 kA Class (lightning current carrying capability) acc. to IEC 62561-3:2011 (81/387/CDV) / EN 50 164-3: H Nominal discharge current (8/20): 100 kA Rated impulse sparkover voltage: <= 1.25 kV Power-frequency sparkover voltage (50Hz): <= 0.5 kV Rated power-frequency withstand voltage (50 Hz): <= 250 V Rated discharge current (50 Hz): 500 A / 0.2 sec. (Tu <= 45°C) Degree of protection: IP67 Connection of enclosure: screw M10x25 mm and spring washer, shield terminal
Brand: DEHN
Type: NAK SN4631
Part No.: 999990
or equivalent.