Shells of tansparent synthetic material for visual inspection of connections before and after casting- The two half shells are assembled by a trigger lock to avoid having to use additional attachments or waterproofing- Funnel shaped ends are inserted into the holes in the shell to facilitate filling with resin- The shells are left on the connection after casting to ensure additional protection form shocks and aggression of the weather- Curing time before energising: approx- 1/2 hour Preservation time: 48 months – Max voltage: 1000 V