ISO 7240-4:2017

INTERNATIONAL ISO
STANDARD 7240-4
Second edition
2017-11
Fire detection and alarm systems —
Part 4:
Power supply equipment
Systèmes de détection et d'alarme d'incendie —
Partie 4: Équipement d'alimentation électrique
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
4.1 Symbols . 2
4.2 Abbreviated terms . 2
5 Requirements . 2
5.1 General . 2
5.2 Compliance . 2
5.3 Power sources . 3
5.3.1 General. 3
5.3.2 Main power source. 3
5.3.3 Standby power source . . 3
5.4 Charger . 4
5.5 Faults . 4
5.6 Mechanical . 5
5.7 Power supply interface . 5
5.8 Software . 5
5.8.1 General. 5
5.8.2 Program monitoring . 5
5.8.3 Storage of programs and data . 6
5.8.4 Monitoring of memory contents . 6
6 Tests . 6
6.1 General . 6
6.1.1 Standard atmospheric conditions for testing . 6
6.1.2 Mounting and orientation . 7
6.1.3 Electrical connection . 7
6.2 Functional tests . 7
6.2.1 The object of test. 7
6.2.2 Test schedule . 7
6.2.3 Full functional test . 8
6.2.4 Reduced functional test . 9
6.3 Charger and the standby power source test .10
6.3.1 Test procedure .10
6.3.2 Requirements .10
6.4 High battery impedance test .10
6.4.1 Object of test .10
6.4.2 General.10
6.4.3 Test procedure for non-integrated PSE .10
6.4.4 Requirements for integrated PSE .11
6.4.5 Test procedure for integrated PSE .11
6.4.6 Requirements for integrated PSE .12
6.5 Environmental tests .12
6.5.1 General.12
6.5.2 Tests for one specimen .13
6.5.3 Tests for more than one specimen .13
6.5.4 Requirements .13
6.6 Cold (operational) .14
6.6.1 Object of test .14
6.6.2 Test procedure .14
6.6.3 Requirements .14
6.7 Damp heat, steady-state (operational).15
6.7.1 Object of test .15
6.7.2 Test procedure .15
6.7.3 Requirements .15
6.8 Impact (operational) — Optional test .16
6.8.1 Object of test .16
6.8.2 Test procedure .16
6.8.3 Requirements .16
6.9 Vibration, sinusoidal (operational) — Optional test .17
6.9.1 Object of test .17
6.9.2 Test procedure .17
6.9.3 Requirements .18
6.10 Electromagnetic compatibility (EMC), Immunity tests (operational) .18
6.11 Damp heat, steady state (endurance) .18
6.11.1 Object of test .18
6.11.2 Test procedure .18
6.11.3 Requirements .19
6.12 Vibration, sinusoidal (endurance) — Optional test .19
6.12.1 Object of test .19
6.12.2 Test procedure .19
6.12.3 Requirements .
...