Non-threaded joints
5.2.1 Width of joints (L)
The width of joints shall not be less than the minimum values given in Tables 1 and 2. The
width of joints for cylindrical metallic parts press-fitted into the walls of a metallic flameproof
enclosure of a volume not greater than 2 000 cm3 may be reduced to 5 mm, if
– the design does not rely only on an interference fit to prevent the part being displaced
during the type tests of Clause 15, and
– the assembly meets the impact test requirements of IEC 60079-0, taking the worst-case
interference fit tolerances into account, and
– the external diameter of the press-fitted part, where the width of the joint is measured, does
not exceed 60 mm.
Non-threaded joints5.2.1 Width of joints (L)The width of joints shall not be less than the minimum values given in Tables 1 and 2. Thewidth of joints for cylindrical metallic parts press-fitted into the walls of a metallic flameproofenclosure of a volume not greater than 2 000 cm3 may be reduced to 5 mm, if– the design does not rely only on an interference fit to prevent the part being displacedduring the type tests of Clause 15, and– the assembly meets the impact test requirements of IEC 60079-0, taking the worst-caseinterference fit tolerances into account, and– the external diameter of the press-fitted part, where the width of the joint is measured, doesnot exceed 60 mm.
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