Grantham

Daniels

SABS Standards Division

South Africa

INTRODUCTION

Standards Development

Standards of interest

International work

Training on Standards implementation

SABS test facilities

SABS STANDARDS DEVELOPMENT

400 SABS Committees

Member of 377 ISO Committees

Member of 130 IEC Committees

Holds several leadership positions in IEC and ISO

Holds SADCStan Secretariat

Leading Standardization body in Africa (SADCSTAN, AFSEC)

Collection of over 6800 SANS

SABS Energy Map

Stages of Standards Development

Proposal Stage 1

Preparatory Stage 2

Committee Stage 3

New Work Item Proposal (NP)

Working Draft(s) (WD)

Committee Drafts (CD) and Final Committee Draft (FCD)

Draft South African Standard (DSS)

Approval Stage 4

Publication Stage 5

60 Days Home Grown30 Days Adopted Standard

New work item proposal (NP) is a proposal for:• a new standard• a new part of an existing SANS standard• revision of an existing SANS standard or part• an amendment to an existing SANS standard or part• a Technical Specification or a Publicly Available Specification

South African National Standard (SANS)

Climate Change StrategyIPAP/DTI initiativeNational Energy StrategyGauteng Integrated Energy StrategyNRCS Regulated specificationsSAGE (Strategic Advisory Group on

Energy Efficiency)

FACTORS TO CONSIDER

Membership representative of all stakeholdersLink with ESKOM to develop SANS and NRS

National Rationalized Specifications ESLC – Electricity suppliers liaison committee• NRS WG committees develop • SABS publish NRS document • National committees identifies the relevant• NRS to be published as SANS

STANDARDS DEVEOPMENT

STANDARDS DEVELOPMENT

National technical committees

SABS TC 1057, DOMESTIC SOLAR WATER HEATING SYSTEMS

SABS TC 72, ELECTRICAL MEASUREMENTS

SABS TC 69, Power Electronics and Alternative Energy Conversion

Liaise with international committees e.g. IEC/TC 13 Electrical energy measurement, tariff and load control

IEC/TC 57 Power systems management and associated information exchange

IEC TC 88, Wind Turbine Systems

Working groups - technical experts

SANS 1307, Domestic Solar Water Heaters

SANS 1346, Domestic Instantaneous Solar Water Heaters

SANS 151, Fixed Electric water heaters

SANS 6210, Mechanical Qualification Tests

SANS 6211-1 Thermal performance using outdoor test methods

SANS/IEC 61400-series, Wind Turbines

SANS 959 Series, Photovoltiac Energy Systems

Standards Currently under Development

Visit the SABS onlineVisit the SABS online

www.sabs.co.za/index.php?page=standardspurchaseOffering standards users features:•Online purchase of SANS, NRS, ISO and IE Standards (the latter two at discount prices)•Standards Search•Free Standards Alert Service•Document previews enabling users to make an informed purchase •Standards available in hardcopy and electronic (PDF or CD) format•www.sabs.co.za

Karel Deist

Technical Specialist

SABS Head office

Pretoria

South Africa

Wrong installations. NOTE: Information presented is based on

direct feedback from industry and users!

Exploded geyser

Directions??

Poor plumbing.

Bent rafters

Change a non pressure to high pressure then this happens.

Roof leak due to wrong instalation.

Backyard design, that is why we need standards

Plastic pipes ONLY for indoor use

Plastic pipes ONLY for indoor use

Local manufactured products

SANS 1307 Solar water heating systems

All SANS 6210 tests

Thermal performancetests SANS 6211-1

4.4 Hot water tank(SANS 151)

4.6 Thermal insulationd) (UV test)

4.8.2 Fittings(SANS as req)

SANS 60335-2-21

General Inspection & Markings

4.12 Materials

Fibre cement

Polymeric materials

Stainless steel

Copperaluminium

Waterabsorption

Sealants

System installation

Thermal Test

Degree of mix

Install in test room

Heat loss test

4.2 Stagnation

4.3 Mechanical strength

4.4 Rain penetration

4.5 Resistance to hail

4.6 Freeze test

Destruct the Sample

4.7 DZR

4.8 Water Absorption

4.9 Corrosion

SANS 1307 Solar water heating systems

All SANS 6210 tests

Thermal performancetests SANS 6211-1

4.4 Hot water tank(SANS 151)

4.6 Thermal insulationd) (UV test)

4.8.2 Fittings(SANS as req)

SANS 60335-2-21

General Inspection & Markings

4.12 Materials

Fibre cement

Polymeric materials

Stainless steel

Copperaluminium

Waterabsorption

Sealants

System installation

Thermal Test

Degree of mix

Install in test room

Heat loss test

4.2 Stagnation

4.3 Mechanical strength

4.4 Rain penetration

4.5 Resistance to hail

4.6 Freeze test

Destruct the Sample

4.7 DZR

4.8 Water Absorption

4.9 Corrosion

Thermal Performance

SANS 1307 Solar water heating systems

All SANS 6210 tests

Thermal performancetests SANS 6211-1

4.4 Hot water tank(SANS 151)

4.6 Thermal insulationd) (UV test)

4.8.2 Fittings(SANS as req)

SANS 60335-2-21

General Inspection & Markings

4.12 Materials

Fibre cement

Polymeric materials

Stainless steel

Copperaluminium

Waterabsorption

Sealants

System installation

Thermal Test

Degree of mix

Install in test room

Heat loss test

4.2 Stagnation

4.3 Mechanical strength

4.4 Rain penetration

4.5 Resistance to hail

4.6 Freeze test

Destruct the Sample

4.7 DZR

4.8 Water Absorption

4.9 Corrosion

Mechanical Integrity

SANS 1307 Solar water heating systems

All SANS 6210 tests

Thermal performancetests SANS 6211-1

4.4 Hot water tank(SANS 151)

4.6 Thermal insulationd) (UV test)

4.8.2 Fittings(SANS as req)

SANS 60335-2-21

General Inspection & Markings

4.12 Materials

Fibre cement

Polymeric materials

Stainless steel

Copperaluminium

Waterabsorption

Sealants

System installation

Thermal Test

Degree of mix

Install in test room

Heat loss test

4.2 Stagnation

4.3 Mechanical strength

4.4 Rain penetration

4.5 Resistance to hail

4.6 Freeze test

Destruct the Sample

4.7 DZR

4.8 Water Absorption

4.9 Corrosion

Geyser & Element

TEST STATISTICS

Solar Water Heater Tests

0

20

40

60

80

100

120

140

2006 2007 2008 2009 2010 projected

nu

mb

er o

f te

sts

thermal test Mechanical test

30% Failures

SA National Standard for Domestic Solar Water Heaters

• The Primary Standard applicable in South Africa for solar water heaters is

• SANS 1307 :2009 Domestic solar water heaters

• The following SA National Standards are referenced within SANS 1307 and hence compliance to requirements is required:

• SANS 151:2008 Fixed electric storage water heaters

• SANS 60335-2-21:2000 Safety of household and similar electrical appliances Part 2: Particular requirements for storage water heaters

Outdoor Exposure Test Site, SABS Pretoria

SANS 1307:2009 - Requirements Mechanical Tests – SANS 6210

• 5.2 Stagnation test for collector• Low failure rate only on flat plate (not vacuum tubes)

• Condensation

• Good insulation required and correct installation

• 5.3 Mechanical strength• Fatigue test (250 000 cycles) and hydrostatic pressure test

• Vacuum test – most pass

• Low pressure, many failures

• High pressure, most pass

• Quality of welds is critical

• 5.4 Rain penetration of collectors• 5 min per 30min for a period of 3 hours

Torque test. 115 Nm.

Rain test.

SANS 1307:2009 – RequirementsMechanical Tests – SANS 6210

• 5.5 Resistance of collectors to Hail damage

• 12 perpendicular impacts from the ice gun, each of impact energy of 11J ±1 J

• Changed in revised 2009 standard

• Vacuum tubes, previously failing; now better quality and most passing test

• Flat plates OK

• 5.6 Resistance to Freezing

• Cold room at -20 oC

• Food grade glycol suitable

• Circulation pump with battery backup

• Insulation important

• Other Tests: 5.7 DZR, 5.8 Water absorption, 5.9 Corrosion resistance

Hail test, 11 + - 1 j

Measure the speed of the hail ball. 11.11 J

Freeze room.

Freeze test -20 ºC

Freeze failure

Fatigue test, required: 250 000 cycles

Fatigue failure, 17000 cycles, required: 250 000

SANS 1307:2009 - RequirementsThermal Properties – SANS 6211-1

• Advanced (Outdoor) Thermal Performance Exposure test

• Gives Q factor (measure of energy saving) for complete solar system

• Minimum of 6 days exposure

• 10 – 25 MJ/m, range used to give average performance

• Regression analysis to give Q Factor for whole year

Test bay

Control room

Any Questions