CLASS PROGRAMME Type approval - DNVGL-CP-0397 - Rules and ...
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CLASS PROGRAMME
Type approval
DNVGL-CP-0397 Edition January 2021
Instruments for switchboard
The content of this service document is the subject of intellectual property rights reserved by DNV GL AS ("DNV GL"). The user
accepts that it is prohibited by anyone else but DNV GL and/or its licensees to offer and/or perform classification, certification
and/or verification services, including the issuance of certificates and/or declarations of conformity, wholly or partly, on the
basis of and/or pursuant to this document whether free of charge or chargeable, without DNV GL's prior written consent.
DNV GL is not responsible for the consequences arising from any use of this document by others.
The electronic PDF version of this document, available at the DNV GL website dnvgl.com, is the official, binding version.
DNV GL ASFOREWORD DNV GL class programmes contain procedural and technical requirements including acceptance criteria for obtaining and retaining certificates for objects and organisations related to classification. © DNV GL AS January 2021 Any comments may be sent by e-mail to rules@dnvgl.com This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document. The use of this document by others than DNV GL is at the user's sole risk. DNV GL does not accept any liability or responsibility for loss or damages resulting from any use of this document.
CHANGES – CURRENT
Changes - current
This document supersedes the December 2015 edition of DNVGL-CP-0397.
The numbering and/or title of items containing changes is highlighted in red.
Changes January 2021
Topic Reference Description
Electrical/mechanical test Sec.2 [2.3] Moved from Section 3 Table 1.
requirements
Editorial corrections
In addition to the above stated changes, editorial corrections may have been made.
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 3
Instruments for switchboard
DNV GL ASCONTENTS
Contents
Changes – current.................................................................................................. 3
Section 1 General.................................................................................................... 5
1 Introduction.........................................................................................5
2 Scope................................................................................................... 5
3 Application........................................................................................... 5
4 References........................................................................................... 5
5 Documentation.....................................................................................6
Section 2 Product requirements..............................................................................8
1 Design requirements............................................................................8
2 Test requirements................................................................................8
Changes – historic.................................................................................................. 9
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 4
Instruments for switchboard
DNV GL ASSECTION 1 GENERAL
Section 1
1 Introduction
The objective of this class programme (CP) is to describe the type approval (TA) scheme for instruments for
switchboard.
For a description of the Society's type approval scheme in general and further information on general
conditions and procedures for obtaining the TA certificate, see DNVGL-CP-0338 Type approval scheme.
The procedures and requirements described in this CP are applicable for obtaining the Society's TA certificate
based on requirements given in:
— DNVGL-RU-SHIP Pt.4 Ch.8 Electrical installations
— DNVGL-OS-D201 Electrical installations
— DNVGL-CG-0339 Sec.1 Environmental test specification for electrical, electronic and programmable
equipment and systems.
Guidance note:
This class programme is not applicable for obtaining EU Marine Equipment Directive (MED) certificates. Visit www.dnvgl.com for
information on MED certification.
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2 Scope
This CP gives a description of the procedures and requirements related to documentation, design and type
testing applicable for TA of Instruments for switchboard.
This CP does not set the design requirements to the Instruments for switchboard. TA is based on compliance
with design requirements given in the rules and/or other regulations and standards. The CP describes the
applicable design requirements and how to document compliance with the requirements in order to obtain a
TA certificate for the equipment. This includes, where relevant, technical requirements for how the type tests
shall be performed.
3 Application
TA of equipment in accordance with this CP is not mandatory.
A TA certificate in accordance with this CP will confirm compliance with the requirements in the rules as
specified in [1]. The TA certificate will not confirm compliance with requirements in other parts of the rules.
In case additional requirements in other parts of the rules shall be covered by the TA certificate, this shall be
specified in the application for TA and will be stated in the TA certificate.
4 References
Table 1 lists DNV GL references used in this document.
Table 1 DNV GL references
Document code Title
DNVGL-RU-SHIP
Electrical installations
Pt.4 Ch.8
DNVGL-CG-0339 Environmental test specification for electrical, electronic and programmable equipment and systems
DNVGL-CP-0338 Type approval scheme
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 5
Instruments for switchboard
DNV GL ASDocument code Title
Section 1
DNVGL-OS-D201 Electrical installations
Table 2 lists other references used in this document.
Table 2 Other references
Document code Title
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 1:
IEC 60051-1
Definitions and general requirements common to all parts
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 2:
IEC 60051-2
Special requirements for ammeters and voltmeters
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3:
IEC 60051-3
Special requirements for wattmeters and varmeters
Direct acting indicating analogue electrical measuring instruments and their accessories title - Part
IEC 60051-4
4: Special requirements for frequency meters
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 5:
IEC 60051-5
Special requirements for phase meters, power factor meters and synchroscopes
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6:
IEC 60051-6
Special requirements for ohmmeters (impedance meters) and conductance meters
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 7:
IEC 60051-7
Special requirements for multi-function instruments
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 8:
IEC 60051-8
Special requirements for accessories
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 9:
IEC 60051-9
Recommended test methods
Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1:
IEC 61010-1
General requirements
5 Documentation
For TA of instruments for switchboard, the following documentation shall be submitted:
— references to design standards, rules, specifications, etc.
— specification of applied material for enclosure and insulation
— test results (from tests already carried out, if any), only one copy
— applicant's proposal to product sample test and routine test
— documentation of reliability and endurance on board ships and offshore units, if any
— special operational limitations
— field of application
— list of type designations for each variant
— construction details:
— voltage
— current etc.
— enclosure (IP) class
— special properties, if any
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 6
Instruments for switchboard
DNV GL AS— test programme, which as a minimum includes the elements for type testing. The test programme shall
Section 1
refer to the relevant IEC standards for each test
— application for type approval form TAA 901.
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 7
Instruments for switchboard
DNV GL ASSECTION 2 PRODUCT REQUIREMENTS
Section 2
1 Design requirements
The instruments for switchboard shall comply with relevant requirements of publications in its latest edition,
including amendments, as listed in Sec.1 Table 1 and Sec.1 Table 2.
Sec.1 Table 1 lists DNV GL standards general to all instruments. Sec.1 Table 2 refers to IEC 60051-1,
applicable for all instruments, and specific standards for each type of switchboard instrument.
Regarding IEC 60051-5 Part 5, synchroscope shall ensure that parallel switching is impossible if the supply-
or measuring voltage fails or in the event of failure of any component.
2 Test requirements
2.1 General
The testing is divided into:
— visual inspection
— electrical/mechanical tests
— environmental tests.
2.2 Visual inspection
By visual inspection, it shall be verified that the test sample is in conformity with the approved plans.
Visual inspection shall be carried out as specified in DNV GL rules for classification of ships DNVGL-RU-SHIP
Pt.4 Ch.8 Sec.4.
2.3 Electrical/mechanical tests
The electrical/mechanical tests are categorized as type tests (to be carried out on the prototype) and routine
tests to be carried out on every unit.
The tests to be performed are specified in IEC 60051 part 1 to part 9, as applicable for each product.
2.4 Environmental tests
Tests related to endurance and reliability of the product on board ships, e.g., vibration test, should take
account of the environmental strains on board vessels.
In case of insufficient experience from service on board ships (or equivalent), the following tests may be
required as type tests:
— vibration test according to DNVGL-RU-SHIP Pt.4 Ch.8 Sec.3, and/or DNVGL-CG-0339
— damp heat test, according to DNVGL-CG-0339
— salt mist test according to DNVGL-CG-0339
— dry heat/cold test according to DNVGL-CG-0339.
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 8
Instruments for switchboard
DNV GL ASCHANGES – HISTORIC
Changes – historic
December 2015 edition
This is a new document.
Class programme: Type approval — DNVGL-CP-0397. Edition January 2021 Page 9
Instruments for switchboard
DNV GL ASAbout DNV GL DNV GL is a global quality assurance and risk management company. Driven by our purpose of safeguarding life, property and the environment, we enable our customers to advance the safety and sustainability of their business. We provide classification, technical assurance, software and independent expert advisory services to the maritime, oil & gas, power and renewables industries. We also provide certification, supply chain and data management services to customers across a wide range of industries. Operating in more than 100 countries, our experts are dedicated to helping customers make the world safer, smarter and greener. SAFER, SMARTER, GREENER
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