Cable gland and Tube
Cable glands could also be used on all kinds of wattage, control, instrumentation, data, and telecommunications cables. They are used as a protection and termination device to confirm that the characteristics of the enclosure that the cable enters are maintained adequately.
Cable glands area unit manufactured from varied plastics, steel, brass or metal. Glands supposed to resist dripping water or water pressure can embrace rubber or alternative sorts of material seals. Certain sorts of cable glands may additionally serve to forestall the entry of ignitible gas into instrumentation enclosures, for electrical instrumentation in unsafe areas.
Although cable glands unit usually noted as "connectors", a technical distinction is made among the language, that differentiates them from quick-disconnect, conducting electrical connectors.
Types 149 and 150: must not be used to join the top and mid rails within the same bay, not more than one joint is allowed between structural supports. Anchors and fixings of tube clamps must be specified to take account of the fixture thickness and design loads according to the manufacturer's recommendations.
Tube clamps fittings are galvanized iron castings and are supplied, as standard, with coated and hardened steel grub screws. They are suitable for use in the construction of tubular structures using standard galvanized steel tubes.
Attention must be paid to the nature, mechanical properties and condition of the civil structure or substrate to which the structure is to be fixed to ensure its ability to withstand the design loads. Consideration must be given to the environmental conditions (e.g.: saline, cyclical loads or vibration) which the structure will have to endure in service and the possible implications for service life.
Tube clamps fittings should not be employed in staging applications. Regular inspections to check the integrity and condition of structures and the tightness of grub screws is recommended.
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