BSI PD CLC/TS 50539-12:2013:2014 Edition
$167.15
Low-voltage surge protective devices. Surge protective devices for specific application including d.c. – Selection and application principles. SPDs connected to photovoltaic installations
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 38 |
This Technical Specification describes the principles for selection, location, coordination and operation of SPDs to be connected to PV installations. The d.c. side is rated up to 1 500 V d.c. and the a.c. side, if any, is rated up to 1 000 V rms 50 Hz.
The electrical installation starts from a PV generator or a set of interconnected PV modules with their cables, provided by the PV generator manufacturer, up to the user installation or the utility supply point.
For PV installations including batteries, additional requirements will be necessary.
NOTE 1 HD 60364-7-712, CLC/TS 61643-12 and EN 62305-4 are also applicable.
NOTE 2 This Technical Specification deals only with SPDs, and not with SPDs components integrated inside equipment.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | Foreword |
| 8 | 1 Scope 2 Normative references |
| 9 | 3 Terms and definitions |
| 11 | 4 Systems and equipment to be protected 5 Overvoltages in a PV installation 6 Installation and location of SPDs 6.1 General |
| 12 | 6.2 PV installation without external LPS |
| 13 | 6.3 PV installation with external LPS when separation distance s is kept |
| 15 | 6.4 PV installation with external LPS when separation distance is not kept 7 Equipotential bonding |
| 17 | 8 Surge protective devices (SPD) in PV installations 9 Requirements for the implementation of SPDs 9.1 Decision for using SPDs |
| 18 | 9.2 Selection and installation of SPDs for application in PV installation 9.2.1 Selection of SPDs installed at the a.c. side of PV installations 9.2.1.1 General 9.2.1.2 Selection of SPDs with regard to nominal discharge current In and impulse current Iimp 9.2.1.3 Selection of SPDs with regard to protection level (UP) and system immunity 9.2.1.4 Installation of SPD on the a.c. side of PV installations |
| 20 | 9.2.2 Selection of SPDs installed at the d.c. side of PV-installation 9.2.2.1 Selection of SPDs with regard to nominal discharge current In and impulse current Iimp 9.2.2.2 Selection of UCPV of SPDs on the d.c. side of PV installations 9.2.2.3 Selection of SPDs with regard to voltage protection level (UP) and system immunity |
| 21 | 9.2.2.4 Installation of SPD at the d.c.-side of PV installation |
| 22 | 9.2.2.5 Cross-section of connecting conductors to SPDs on the d.c. side of PV installations 9.2.2.6 Internal connection schemes of SPDs or combination of single mode SPDs on the d.c.-side of PV generator |
| 24 | 9.2.2.7 Overload behaviour of SPD installed on the d.c. side of PV installation. |
| 25 | 10 Maintenance |
| 26 | Annex A (informative) Determination of the value of Iimp or In for SPDs for different structures protected by a LPS according to a simplified approach A.1 Introduction A.2 PV installation on a building according to 6.4 A.2.1 General |
| 28 | A.2.2 Case of voltage limiting and combination type SPDs (having voltage switching and limiting components in series) |
| 29 | A.2.3 Case of voltage switching and combination type SPDs (having voltage switching and limiting components in parallel) A.3 Outside free field power plant PV installation according to 6.4 A.3.1 General A.3.2 Assumption |
| 30 | A.3.3 Result |
| 32 | Annex B (informative) Characteristic of a PV source B.1 General |
| 33 | B.2 Calculation of UOCMAX B.3 Calculation of ISCMAX |
| 34 | Annex C (normative) Simplified risk assessment based on EN 62305-2 |
