AS/NZS 4509.1:2009

AS/NZS 4509.1:2009 STAND-ALONE POWER SYSTEMS - SAFETY AND INSTALLATION

PREFACE

CONTENTS

SECTION 1 SCOPE AND GENERAL

1.1 SCOPE

1.2 APPLICATION

1.3 REFERENCED DOCUMENTS

1.4 DEFINITIONS

1.4.1 Alternating current (a.c.)

1.4.2 Authorized person

1.4.3 Battery enclosure

1.4.4 Competent person

1.4.5 Consumers mains

1.4.6 Current-carrying capacity

1.4.7 Direct current (d.c.)

1.4.8 Extra-low voltage (ELV)

1.4.9 Hydro generator

1.4.10 Low voltage (LV)

1.4.11 Photovoltaic (PV) module/array

1.4.12 Point of supply

1.4.13 Protection equipment

1.4.14 Shall

1.4.15 Should

1.4.16 Stand-alone power systems

1.4.17 Switchboard, main (installation)

1.4.18 Wind turbine generator

SECTION 2 GENERAL REQUIREMENTS

2.1 A.C. OUTPUT VOLTAGE

2.2 APPLICATION OF AS/NZS 3000

2.3 SIGNS

2.4 INFORMATION SIGN FOR EMERGENCY SERVICES

2.5 SHUTDOWN PROCEDURE

2.6 IDENTIFICATION AND LOCATION OF EQUIPMENT

2.7 METERS AND INFORMATIVE DISPLAYS

2.8 MECHANICAL AND THERMAL PROTECTION OF EQUIPMENT

SECTION 3 INSTALLATION, WIRING AND CIRCUIT PROTECTION

3.1 CABLE PROTECTION

3.2 ELECTRICAL PROTECTION

3.3 EQUIPMENT LAYOUT

3.4 WIRING ISSUES

3.4.1 D.C. Losses

3.4.2 ELV Cabling Voltage Drop

3.4.3 Segregation Of Circuits

3.4.4 D.C. Cabling Inductance

SECTION 4 CONNECTION OF STAND-ALONE POWER SYSTEM TO LOAD(S)

4.1 GENERAL

4.2 D.C. LOADS

4.3 A.C. LOADS

4.4 STAND-ALONE POWER SYSTEMS DIRECTLY FEEDING A SINGLE A.C. LOAD

4.4.1 General

4.4.2 Point of supply with earthed neutral

4.4.3 Separated supply

4.5 SYSTEMS FEEDING A SINGLE ELECTRICAL MAIN (INSTALLATION) SWITCHBOARD

4.5.1 General

4.5.2 Isolation and protection of consumers mains

4.5.3 Earthing

4.5.4 Protection

4.6 A.C. SYSTEMS SUPPLYING SEVERAL BUILDINGS

4.6.1 General

4.6.2 Earthing

SECTION 5 RENEWABLE ENERGY GENERATORS

5.1 PHOTOVOLTAIC ARRAYS

5.1.1 Installation

5.1.2 Sizing

5.2 WIND TURBINE GENERATORS

5.2.1 General

5.2.2 Site

5.2.3 Footings

5.2.4 Tower

5.2.5 Wind tower guy wires

5.2.6 Securing devices

5.2.7 Sizing

5.3 HYDRO GENERATORS

5.3.1 Site

5.3.2 Installation

5.3.3 Size

SECTION 6 GENERATING SETS

6.1 GENERAL

6.2 INSTALLATION OF GENERATING SETS

6.3 AUTOMATIC-START WARNING

6.4 FUEL STORAGE

6.4.1 General requirements

6.4.2 Australian requirements

6.4.3 New Zealand requirements

SECTION 7 BATTERIES

7.1 GENERAL

7.2 LOCATION OF BATTERIES

7.3 EQUIPMENT ROOM OR BATTERY ENCLOSURE

7.3.1 General

7.3.2 Lighting

7.3.3 Socket-outlets

7.3.4 Fences

7.4 LOCATION OF BATTERY PROTECTION EQUIPMENT

7.5 INSTALLATION

7.5.1 Mandatory requirements

7.5.2 Recommendations

SECTION 8 REGULATORS AND BATTERY CHARGERS

8.1 TEMPERATURE SENSING

8.2 LOCATING THE REGULATOR

8.3 BATTERY CHARGERS

8.4 SURGE PROTECTION

SECTION 9 INVERTERS

9.1 CABLING

9.2 INVERTER FIXING

9.3 INSTALLATION

9.3.1 General

9.3.2 Inverters with separation

9.3.3 Inverters without separation

9.4 CONNECTION OF GENERATORS TO INVERTERS

9.4.1 General

9.4.2 Connecting a generating set in parallel with an interactive inverter

SECTION 10 TESTING AND COMMISSIONING

10.1 GENERAL

10.2 WIRING

10.3 D.C. POLARITY

10.4 PRE-COMMISSIONING CHECKS

10.5 SYSTEM FUNCTIONAL TEST

SECTION 11 SYSTEM DOCUMENTATION

11.1 GENERAL

11.2 SYSTEM MANUAL

11.3 SYSTEM AND BATTERY RECORD BOOK

11.4 GENERATING SET LOGBOOK

APPENDIX A - SYSTEM MAINTENANCE

A1 GENERAL

A2 MAINTENANCE OF THE ELECTRICAL WIRING

A3 MAINTENANCE OF THE PV ARRAY

A4 MAINTENANCE OF WIND TURBINE GENERATORS

A5 MAINTENANCE OF MICRO-HYDRO GENERATORS

A6 MAINTENANCE OF GENERATING SETS

A7 MAINTENANCE OF THE BATTERY BANK

A7.1 General

A7.2 Safe entry to battery area

A7.3 Checks to be done

A8 MAINTENANCE OF OTHER ITEMS

A9 SYSTEM REVIEW

APPENDIX B - RCD ISSUES

B1 INTRODUCTION

B2 ISSUES WITH USING RCDS

APPENDIX C - BATTERY ENCLOSURE EXAMPLES