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BS 6312-2.2:1997:2005 Edition

BS 6312-2.2:1997:2005 Edition

$102.76

Connectors for analogue telecommunication interfaces – Sockets for use with plugs specified in BS 6312-1 – Particular requirements for fixed socket-outlets used in permanent wiring installations

Published By Publication Date Number of Pages
BSI 2005 22
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This Section of BS 6312-2 specifies the requirements and tests necessary to ensure the safety and the dimensional interchangeability of fixed socket-outlets, as defined in 3.2, intended for connection to telecommunications wiring.

Such socket-outlets may be classified both by function, i.e. as being either primary (surge protected or unprotected) or secondary, and according to their method of mounting, i.e. as surface, flush and panel mounted socket-outlets.

This Section does not apply to sockets incorporated in apparatus.

Socket-outlets conforming to this standard are intended to be suitable for use under the following conditions of service unless otherwise specified:

  • an ambient temperature in the range −5 °C to +35 °C, the average value over a 24 h period not exceeding 25 °C;
  • a situation not subject to direct radiation from the sun or other source of heat likely to raise temperatures above the limits specified above;
  • an atmosphere not subject to excessive pollution by smoke, chemical fumes, rain, spray, prolonged or high humidity or other abnormal conditions.

NOTE Socket-outlets conforming to this standard may be suitable for use in other conditions subject to agreement between manufacturer and user. Information given in a manufacturer’s catalogue may take the place of such an agreement.

This standard applies in conjunction with BS 6312-2.1 and the requirements are in addition to those in that standard.

Requirements for electromagnetic compatibility are not given as socket-outlets do not in themselves produce extraneous emissions, nor is their functioning affected by external emissions. Therefore no emission or immunity tests are necessary.

Specifies the requirements and tests necessary to ensure the safety and dimensional interchangeability of fixed socket-outlets connected to telecommunications wiring.

PDF Catalog

PDF Pages PDF Title
1 BRITISH STANDARD
2 Committees responsible for this British Standard
3 Contents
5 1 Scope
2 References
3 Definitions
socket-outlet
fixed socket-outlet
6 flush mounted socket-outlet
surface mounted socket-outlet
panel mounted socket-outlet
primary surge protected socket-outlet
primary unprotected socket-outlet
secondary socket-outlet
accessible metal part
intermediate metal part
live part
4 Classification of fixed socket-outlets
7 5 General requirements
6 Testing
6.1 A manufacturer or responsible vendor who claims conformity to this standard for any product, shall submit a representative type test specimen of that product to the relevant tests of this standard in the order specified in 6.2. The tests shall be ma
6.2 A total of at least nine specimens of socket-outlet, of any one type, shall be submitted to inspection and tests against the requirements of the following clauses:
6.3 Unless otherwise specified in this standard, the socket-outlets shall be tested (as delivered by the supplier) under the conditions specified in 4.2 of BS 6312-2.1:1994.
7 Construction
7.1 The minimum size of flush socket-outlet plates constructed either of insulating material or of metal, or a combination of both, and which are intended for mounting on size UA1 boxes as specified in BS 4662, shall be 82.5 mm ° 82.5 mm.
7.2 Flush-mounted socket-outlets intended for mounting on size UA1 boxes as specified in BS 4662 shall have provision for two M3.5 fixing screws at centres of (60.3 ± 0.2) mm.
7.3 Surface mounted socket-outlets shall be provided with a box or enclosure to ensure proper seating on a flat surface, the box having a minimum of two holes for mounting which will accept No. 6 wood screws conforming to BS 1210:1963.
8 7.4 For panel mounted socket-outlets, the manufacturer/supplier shall specify the panel thickness and method of mounting. The dimensions of the panel cut-out shall be not less than those shown in Figure 1.
Panel cut-out dimensions
7.5 The construction of the socket-outlet shall be such that when a mating plug is withdrawn from it, the socket contacts are automatically screened by a shutter.
7.6 For multiple socket-outlets incorporating two or more sockets, the pitch between adjacent sockets shall be not less than 24 mm.
7.7 The mounting of a socket within a socket-outlet shall be such that the maximum dimension from the front face of the socket beneath the shutter to the front face of the socket-outlet immediately adjacent to the shutter is 5.5 mm.
8 Components
8.1 Primary surge protected socket-outlets shall include the following components, configured as shown in Figure 2a):
8.2 Unprotected socket-outlets shall include the same components as those specified in 8.1, with the exception of the voltage surge protector. The circuitry shall be configured as shown in Figure 2b).
8.3 Secondary socket-outlets shall not include auxiliary components and shall be configured as shown in Figure 3.
8.4 Any PCB used for the interconnection of the components shall be based on BS EN 123000.
8.5 The assembled socket-outlet shall meet the requirements of this specification over the range of -10 °C to +40 °C and continue to operate correctly after being subject to the environmental conditioning detailed in A.3.
9 Primary socket-outlet circuit schematic
10 Primary socket-outlet circuit schematic (concluded)
11 Secondary socket-outlet circuit schematic
9 Marking
9.1 Requirement
12 9.2 Test method
10 Accessibility of electrical connections
10.1 Requirement
10.2 Test method
11 Provision for earthing and insulation of accessible metal parts
11.1 General
11.2 Earthing
11.3 Insulation
13 11.4 Design and fixing of insulating material
12 Terminals
12.1 Any earthing terminal of a socket-outlet shall be capable of connecting at least two 1.5 mm2, solid copper conductors and shall be marked with the symbolor(preferred) conforming to BS 6217:1981.
12.2 The method of connection of the telecommunications wiring to the socket-outlet shall be by screw-type terminals or insulation displacement terminals.
13 Electrical strength and insulation resistance
14 Mechanical strength
14.1 Requirement
14 14.2 Test method
Test specimen
15 Test apparatus (continued)
16 Test apparatus (concluded)
17 14.3 Effectiveness of shutter
15 Resistance to heat
18 Method of testing shutter operating force
19 (normative) Characteristics of components
(normative) Characteristics of components
Voltage surge protector
Gas filled type”
Semi-conductor type
Insulation displacement terminals
Environmental conditioning

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BS 6312-2.2:1997
$102.76