Blake MatichEditor

pv magazine

Werner SignerMarket Manager Solar

Studer Cables

Lokesh VinayagamResearch Associate

SERIS

Roman BrückHead of Department |

Components & Power ElectronicsTÜV Rheinland

Jonathan GiffordEditor in Chief

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Studer Cables

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Waterproofed: new cable testing, standard for FPV

28 April 2021

Presented by

W. J. SignerMarket Manager Solar

Water Resistant (WR) FPV DC-CableBETAflam® Solar 125 flex WR 1500

DC Cable Solution for FPV

Topics

Studer Cables AG

2 Request

3 Standards

4 Solution

5 Benefits

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer2

1

6 Contact Data

160 Mio EUR 2020

Clean Energy for60 Mio Housholds

400 Collaborator04/20

Present in more than30 countries

Cabled more than100 GW PV powerUntil 2020

40 Mio t CO2 / Yearreduction

Sustainable & GreenA global key player in photovoltaics – DC cabeling

Studer Cables AG* – Switzerland, since 1939

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer3

* formerly known as Leoni Studer AG

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer4

Request

• Two digits % growth for off- and onshore FPV Power Plants all over the world• huge future potential for FPV and harsh environment application, especially on European

Sweetwater lakes, gravel pit ponds & Alpine reservoir lakes in the mountains• almost no components , beside Floats and Under-Constructions

are developed for FPV applications, mid term quality troubles are predicted• request for optimized FPV Components according standards, no standards creates bastards!• the conditions on water, off- or onshore, are generally much tougher as on land, accelerated aging• the lifetime of most components on water are shorter and limited, especially after mid- (10 years) and long-term

(20 years) of operation. Quality is not everything, but everything without quality is nothing!• 1st generation FPV components have up to 95% water contact footprint

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PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer5

Request

• Currently 95% of all FPV Power Plant constructions are designed with short distance to the water and loose freestyle DC cabling installation

• The demand for FPV Standards (from Nice to Have to Must to Have)

• LCoE for FPV like for ground-based PV will be an illusion without significant product and systems development specially for FPV applications.

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer6

Standards TÜV, IEC, EN & UL

Nature of test Specific FPV test conditions Test pass requirements Long-term resistance to DC on completed cables

DC (3.6kV) voltage applied to 5m of cable for 2016 hours while 5m cable is submerged in 90±5°C aqueous solution of sodium chloride.

No breakdown or signs of damage on cable. Voltage test passed.

Change of capacitance Capacitance bridge testing conducted after 3m of cable is immersed in 90±5°C for 14 days.

Capacitance after 14 days immersion shall be no more than 4% higher than the capacitance determined after immersion for 7 days.

additional to IEC 62930 for PV cables with improved water resistance as stipulated by TÜV Rheinland specification 2 PfG 2750/09.20 Tests

Extraction of TÜV 2 Pfg 2750/09.20 Specification

Water Resistant (WR) FPV DC - Cable BETAflam® Solar 125 flex WR 1500

Standards / Material properties • Fire performance IEC 60332-1, UL 1581 2556/FV1• Smoke emission IEC 61034, EN 61034-2• Low fire load DIN 51900• Approval 2Pfg 2750/09.20• PV Wire approval UL 4703 & 44• Application standards EN 50618, IEC 62920

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer7

Solution worldwide 1st WR FPV cable, certified 2 Pfg 2750/09.20, IEC 50618, IEC 62930

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer8

Benefits

• worldwide 1st WR FPV cable, certified 2 Pfg 2750/09.20, IEC 50618, IEC 62930• Water Resistant and Direct Burial tested and certified according PV Wire, UL 4703 & 44• use for offshore and onshore FPV• improvement of 1st generation* FPV technology & systems * (1st generation systems have up to 95% water contact footprint)

• dedicated for 2nd Generation Component for FPV • longer Lifetime compare to normal FPV DC Cables, 25 year• helps massively for a lower LCoE , lower OPEX and better bankability• flexibility and bendability like a standard PV DC cable• available for 4mm2, 6mm2 and 10mm2, bigger dimensions on request• fully compatible with iC/DC® cabling solution (intelligent Cabling for DC)

Note: BETAflam® Solar 125 flex WR 1500 is not an underwater cable for permanent water contact

PV Magazine Webinar 28. April 2021 Waterproofed: new cable testing, standard for FPV W.J.Signer9

Contact Data

Werner J. SignerMarket Manager Solar

Studer Cables AGSolarHerrenmattstr. 204658 DänikenSwitzerland

sales-switzerland@studercables.comE-Mail: werner.signer@studercables.comOffice: +41 (0)62 288 84 14Mobile: +41 (0)79 520 63 14 please call or mail for more information

also available