Detection of damages to a chain

Electric sockets

For protection of electric chains safety locks with the knife contacts which color corresponds to a current of protection of a safety lock are used. Serviceability of a safety lock determine by presence of the wire conductor connecting contacts of a safety lock. For replacement of the failed safety lock previously switch off the corresponding electric chain, take a safety lock from a nest tweezers. If again established safety lock instantly fails when giving tension, check a protected electric chain. If the safety lock protects some chains, connect them serially that on peregoraniye of a safety lock to define a faulty chain.