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BS EN 50262:1999:2005 Edition

$142.49

Cable glands for electrical installations

Published By Publication Date Number of Pages
BSI 2005 26
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Requirements and tests for the construction and performance of complete metric cable glands, as supplied by the manufacturer or supplier. Does not include parts of cable glands.

PDF Catalog

PDF Pages PDF Title
1 BRITISH STANDARD
2 National foreword
4 Foreword
Foreword to amendment A1
Foreword to amendment A2
Contents
5 1 Scope
2 Normative references
6 3 Definitions
3.1 cable gland
3.2 size
3.3 cable
3.4 flexible cable
3.5 armoured cable
3.6 !cable retention
3.7 !cable anchorage
3.8 cable guard
3.9 composite cable gland
3.10 family (of cable glands)
7 4 General requirements
5 General conditions for tests
5.1 Tests according to this standard are type tests.
5.2 Unless otherwise specified, the tests shall be carried out on cable glands assembled and moun…
5.3 Unless otherwise specified, the tests shall be carried out at an ambient temperature of (20�±…
5.4 Before the tests, in accordance with Clause
5.5 Cable glands shall be conditioned for at least�24�h at a temperature of (20�±�5)�°C and a rel…
5.6 Unless otherwise specified, three samples shall be subjected to the relevant tests.
5.7 Unless otherwise specified, test mandrels shall consist of a metallic rod with an elastomeri…
5.8 Clearance holes shall have the values as given in
8 6 Classification
6.1 According to material
6.2 According to mechanical properties
6.3 According to electrical properties
6.4 According to resistance to external influences
6.5 According to sealing system
9 7 Marking and documentation
7.1 An appropriate part of the cable gland shall be legibly and durably marked in a visible place…
7.2 The test is made by rubbing the marking by hand for�15�s with a piece of cotton cloth soaked …
7.3 The manufacturer or supplier shall provide in his literature all information necessary for th…
8 Construction
8.1 Those parts of a cable gland that are used for tightening or for holding during installations…
8.2 All external projecting edges, and corners of cable gland components shall be smooth, to prev…
10 8.3 Cable glands shall be constructed to avoid cable damage when installed in accordance with the…
8.4 Cable glands shall provide a minimum degree of IP54�in accordance with EN�60529.
8.5 Care shall be taken in the construction of cable glands to ensure that no detrimental effects…
8.6 Cable glands shall be suitable for use within a minimum temperature range of p20�°C to�65�°C….
9 Mechanical properties
9.1 Cable retention for cable glands without protective bonding to earth
11 Figure 1 Typical arrangement for cable retention test
12 Table 2A Pull forces for cable retention and cable anchorage ”
Table 2B Pull forces for cable retention for armoured cable
9.2 Cable retention for cable glands with protective bonding to earth
9.3 Cable anchorage
13 Figure 2 Typical arrangement for cable anchorage pull test
14 Table 3 Torque values for cable anchorage twist test
9.4 Resistance to impact
15 Figure 3 Typical arrangement for cable anchorage twist test
Table 4 Impact values
9.5 Excess tightening and seal performance
16 Figure 4 Typical arrangement for impact test
17 9.6 Cable guard
10 Electrical properties
10.1 !Equipotential bonding”
10.2 Electrical connection to metallic layer(s) of cable
10.3 Insulation resistance
18 Figure 5 Typical arrangement for insulation resistance measurement
10.4 !Protective connection to earth”
20 Figure 6 Typical arrangement for mechanical pre�stressing
21 Figure 7 Typical arrangement for electrical current tests
22 Table 5 Electrical current values
11 Electromagnetic compatibility
12 External influences
12.1 IP Code in accordance with EN�60529
23 12.2 Resistance to abnormal heat
12.3 Resistance to salt and sulphur dioxide laden atmospheres
24 National Annex NA (informative) Guidance on application of EN 50262 to cable glands with non-metric entry threads
NA.1 Clearance holes for testing cable glands
NA.2 Marking and documentation
NA.2.1 Marking
NA.2.2 Documentation
Table NA.1 Standards specifying non-metric entry threads
25 NA.3 Non-metric equivalents of metric entry threads
Table NA.2 Non-metric equivalents of metric entry threads
BS EN 50262:1999
$142.49