Resistor for drilling polystyrene, has springs receiving lugs set on wires, and protective springs housed on lugs where springs, protective springs and wires are separated by glass fiber sheaths, teflon sheaths and silica sheaths

摘要

The resistance has a cartridge heater housed in a brass body and receiving current through terminals sealed in thermal cement. The terminals connect the heater across ceramics. A connector technology includes springs (6) receiving lugs (7) set on a wires (8). The wires including a power cable are set on the cable, and protective springs (11) are housed on the lugs. The springs, protective springs and wires are separated by glass fiber sheaths (12), teflon sheaths (13) and silica sheaths (14). A thermo-retractable sheath (15) imprisons the silica sheath.