Double Compression Cable Glands
Product-type reference. View source and pictured model ↗ The supplied make and configuration are confirmed in your quotation.
Confirm the inner and outer interfaces
Double compression cable glands are specified where the chosen construction provides the required cable retention and sealing arrangement. In common armoured-cable designs, separate interfaces address the cable bedding and outer sheath. The exact design still needs its own drawing: the term double compression does not establish a universal two-seal geometry or protection rating.
This product type sits within Tirupati Power Enterprises’ existing single and double compression gland range. It helps distinguish a requirement that needs additional cable dimensions and armour checks from an enquiry based only on outside diameter. State the cable construction and the intended gland series before selecting a nominal size.
Check bedding, sheath and armour dimensions
Compare the gland chart with the outer sheath diameter and the diameter at the inner seal, where that design seals the bedding. Check the armour type and dimensions against the stated clamping range. These measurements describe different interfaces; one correct diameter does not show that the other parts will fit.
Cable makes can differ in overall diameter despite having the same conductor cross-section and core count. Wire armour, strip armour and braid may require different retention arrangements. For a new installation, use the cable manufacturer drawing. For a replacement, competent personnel should establish the relevant dimensions and condition through an appropriate isolated inspection.
Treat earthing and sealing as designed functions
An armoured-cable gland must suit the approved armour termination and earth-continuity arrangement. Specify any earth tag, bonding accessory or other connection required by the design. The enclosure material, entry position and cable support also influence the assembly. A gland name does not establish the fault-current performance of the complete earthing path.
Ingress protection and environmental suitability depend on the specific gland and its installed accessories. Double compression alone does not mean weatherproof, flameproof or suitable for a hazardous area. If the location has special requirements, provide the required specification and documentation so that the exact proposed series can be checked.
Quotation and installation information
Send outside and bedding diameters, armour details, enclosure entry thread, gland material or finish and quantity. Identify outdoor exposure, washdown, corrosive conditions or other relevant environmental factors. Include a preferred make or series only where the project specifies one; the enquiry should allow its availability and technical suitability to be confirmed.
Follow the manufacturer cable-preparation and assembly instructions for the selected gland. Cutting lengths, armour preparation, seal assembly and tightening are series-dependent. Installation personnel should verify that the cable is supported and that the assembled entry meets the project requirements. A generic dimension chart explains selection fields but cannot provide instructions for every double compression gland.
Before requesting a quotation
- Outside sheath and inner bedding diameters
- Armour type and clamping dimensions
- Series-specific inner and outer sealing ranges
- Entry thread, enclosure thickness and available space
- Earth-continuity accessories and cable support
- Required environmental specification
Sources and further reading
Selection references
Use the selected manufacturer’s current datasheet to confirm the exact model. These references explain selection principles.
Applications
- Armoured cable entries with a suitable gland design
- Industrial panel and junction-box cable entries
- Outdoor cable entries subject to series-specific suitability
Questions about Double Compression Cable Glands
Why is bedding diameter needed?
Where the gland seals the inner bedding, that diameter must fit the inner seal range. The outer sheath diameter alone cannot establish compatibility.
Does double compression automatically mean flameproof?
No. Hazardous-area suitability depends on the exact gland design, certification and installation conditions required by the project.
Can I order by core count and cable cross-section?
Those details help identify the cable, but gland selection also needs actual cable dimensions, armour construction and enclosure entry details.
Relevant products and guidance
Prepare a clear BOQ, check technical substitutions and coordinate a Kolkata electrical-supply enquiry with Tirupati Power Enterprises.
Read articleCables & TerminationsArmoured cable selection for industrial installationsChoose an armoured cable by electrical duty, installation conditions and armour construction. Include the termination requirements in the cable schedule.
Read articleCables & TerminationsDouble compression vs single compression cable glandsCompare gland sealing arrangements, armour retention and enclosure requirements before choosing a single or double compression cable gland.
Read articleNeed this for your application?
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