Starting knot tightened Step A—Bowline-on-a-bight as starting knot  Step B—Intermediate half hitches Step C—Final knot Wrap cord twice over bundle Clove hitch and square knot Starting knot for branch off Half-hitch required at branch-off point Branch-off lacing Main bundle lacing Figure 4-98.  Lacing a branch off.  Figure 4-97.  Double cord lacing.  Figure 4-99.  Tying a wire group of bundle.  4-57 regular terminal knot used in single- or double-cord lacing,  as applicable, and trim the free ends of the lacing cord neatly.  All wire groups or bundles should be tied where supports are  more than 12 inches apart. Ties are made using waxed cotton  cord, nylon cord, or fiberglass cord. Some manufacturers  permit the use of pressure-sensitive vinyl electrical tape.  When permitted, the tape should be wrapped three turns  around the bundle and the ends heat sealed to prevent  unwinding of the tape.  Figure 4-99  illustrates a recommended  Tying