Is a metal helix proof of grounding?

Short answer

A metal helix or braid is not in itself a verified grounding connection. How the metal contacts the ends, the continuity path and the application criteria must be clearly defined and measured; visible wire is not sufficient evidence.

Source: S036, S041

Technical explanation

The primary function of hose reinforcement may be mechanical. If it is to be used to provide an electrical property, the manufacturer's instructions for that construction and the end fitting assembly are required. A coating on the wire, an insulating layer or the way it is connected can affect the measurement path. Exposing one end in an improvised way can also change mechanical integrity and corrosion behavior. A requirement for electrical continuity must be addressed together with all the safety requirements of the hose assembly.

Source: S036, S041

Topic-specific checkpoints

ItemDescription
ReinforcementMechanical function and actual construction
ContactControlled connection to the ends
ModificationManufacturer and facility assessment
EvidenceMeasurement of the finished assembly with a suitable method

Source: S036, S041

How to evaluate it in practice

If there is an electrical requirement in the order, state it before assembly. Instead of looking for visible wire at the end, ask for the manufacturer's connection method and test record. If it is thought that a cable needs to be added in the field, make this subject to a competent facility and product assessment; do not make random modifications. When producing a replacement hose, do not automatically treat a different reinforcement construction with the same appearance as equivalent. The inspection plan should include both the electrical measurement and damage to the wire and end areas.

Original editorial recommendation; not a clause of a standard.

Frequently asked questions

Is it enough to let the helix touch the fitting?

Incidental contact does not replace proper assembly and measurement. A method verified by the manufacturer is required.

Source: S036, S041

Source coverage

  1. S036
    Industrial Hose Safety Connections Gates · accessed 2026-10-19 PDF pp. 6–8 construction and selection; pp. 10–19 maintenance; pp. 21–27 special services
  2. S041
    Composite Hose Handling Guide Dantec · accessed 2026-10-19 PDF p. 1 handling drawings; p. 2 suitability, testing and inspection

A152 · Revision 4 · Content date 2026-10-19 · Published 2026-10-20 · Translated from the Turkish original.