Lacing Cord

This old tried and true technique, taught to generations of linemen, is still used in some modern applications since it does not create obstructions along the length of the cable, avoiding the handling problems of cables groomed by plastic or Velcro cable ties.

Cable lacing uses a thin cord known as lacing cord or tape, traditionally made of waxed linen, to bind together a group of cables using a series of running lock-stitches. Flat lacing tapes made of modern materials such as Nylon, Polyester, Teflon, Fiberglass and Nomex are also available with a variety of coatings to improve knot holding.

Styles

The lacing begins and ends with a whipping or other knot to secure the free ends. Wraps are spaced relative to the overall harness diameter to maintain the wiring in a tight, neat bundle, and the ends are then neatly trimmed. In addition to continuous or running lacing, there are a variety of lacing patterns used in different circumstances. In some cases stand-alone knots called spot ties are also used. For lashing large cables and cable bundles to support structures in telecommunications applications, there are two named cable lacing styles: the "Chicago stitch" and "Kansas City stitch".

Some organizations have in-house standards to which cable lacingmust conform, for example NASA specifies their cable lacing techniques in chapter 9 of NASA-STD-8739.4