| 摘要 |
A cable gland (1) having an armour clamp assembly is provided wherein the clamp assembly comprises an armour clamping cone (4) and a cooperating clamping ring (5). The armour clamping cone and clamping ring each have a first cooperating conical clamping surface (11, 12) of substantially conventional and relatively small cone angle and a second cooperating clamping surface (14, 15) which diverges outwardly from the first conical surface at the larger diameter end of the first clamping surface. The second cooperating clamping surfaces (14, 15) are adapted to clamp between them armouring (16) of relatively small thickness whilst the first cooperating clamping surfaces are adapted to clamp between them armouring (13) of relatively larger thickness. The invention makes use of the fact that relatively thick armouring (13) such as relatively stiff longitudinally extending wires must be clamped to withstand substantial tensile whilst the thinner armouring (16) such as relatively fine braided wires and metal tape can be effectively clamped between the second clamping surfaces (14, 15) to provide good electrical contact between the clamping surfaces and the armouring. It is not generally required of a cable gland to withstand substantial tensile force in the case of the less robust and relatively thin armouring. |
