Kirk interlocking products provide safe access to switchgear within HV substations. Trapped key access interlocks and key exchange units restrict physical entry and prevent dangerous operating conditions, ensuring that personnel operate equipment according to the correct sequence of operation.
For HV substation applications, Kirk recommends its HD Series interlocks. The lock housing, cylinder and inner workings are manufactured entirely of 316 stainless steel. A robust dowel pin key design resists breakage and prevents duplication. A gasketed flip cover protects the keyways from debris. The HD Series range includes mechanical and electromechanical bolt, access, transfer and valve interlocks, along with a full range of accessories to form a comprehensive switchgear interlocking scheme for HV substations.