heat-shrink tubing over underground cables is shrunk with a gas flame

ausanschluss background burial cable cables connect connection current danger dig ditch earth electric electrician energy exposed fire flame gas germany gloves heatshrink highvoltage home house installation large line loop mend modern new own permit photo pinch power protective renew repair safety schrumpfschlauch shaft shrunk sleeve soil street supplier supply symbolic tubing underground work worker gasumlage