HVLB-COAX for Cable Sheath Bonding with Concentric Cable

TE Connectivity’s (TE) high voltage link box HVLB provides a sealed and dry environment for high voltage cable sheath earthing connection. It reduces voltages and circulating currents.

TE offers three types of link boxes with different number of entries to bond the cable sheath to the ground: HVLB-COAX-SLV, HVLB-COAX-GND and HVLB-COAX-CRO.

Within the HVLB-COAX-SVL link box, the cable sheath is earthed via a Sheath Voltage Limiter (SVL). The HVLB-COAX-GND link box is used to earth the cable sheath direct to the ground without a SVL. Within the HVLB-COAX-CRO link box the cable sheaths are crossbonded.

To get an easy access to the cable sheath for inspections, TE developed a reliable gasket-lid system, which is tighter against water and dust. The lid system is equipped with a proof device for padlocks to prevent unauthorized access.

A well-arranged configuration ensures a higher reliability. Homogeneous distances between the electrical path, trustworthy electrical connections and a special developed short-circuit-yoke allow a better impulse-voltage and short-circuit withstand. For safety in an unexpected case, our box is tested to absorb the power of an internal arc with 25 kA for 0,1 sec.

Features

• Impulse withstand: 75 kV
• Short circuit current: 63 kA/1 s
• Internal power arc: 25 kA/0.1 s
• Tight against water and dust according to protection class IP688
• Gland sealing with WCSM heat shrinking tube
• Sequential serial number for each link box