<https://www.testar.com.sg/products/accessories/ndb-vci3e-01-transmitter-injection-leads/>
<http://schema.org/description>
"The VCi-3™ system is designed for cable and phase identification, mainly for instal­lation or maintenance purposes on three-phase electrical networks during power shutdowns."
<https://www.testar.com.sg/products/accessories/ndb-vci3e-01-transmitter-injection-leads/>