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DNV-OS-D301 Fire Protection

Ch.3: Certification and Classification

CHAPTER 3 Certification and Classification

Ch.3

SECTION 1
Certification and Classification

Ch.3 Sec.1
A. General

Ch.3 Sec.1
A 100 Introduction

Ch.3 Sec.1 A
101   As well as representing DNV's interpretation of safe engineering practice for general use by the offshore industry, the offshore standards also provide the technical basis for DNV classification, certification and verification services.

Ch.3 Sec.1 A
102   A complete description of principles, procedures, applicable class notations and technical basis for offshore classification is given by the DNV Offshore Service Specifications (OSS).

Ch.3 Sec.1 A
103   Classification procedures and requirements specifically applicable in relation to the technical requirements given in Ch.2 of this standard are given in this chapter.

Ch.3 Sec.1
A 200 Assumption

Ch.3 Sec.1 A
201 Where codes and standards call for the extent of critical inspections and tests to be agreed between contractor or manufacturer and client, the resulting extent is to be agreed with DNV.

Ch.3 Sec.1
A 300 Alternative solutions

Ch.3 Sec.1 A
301 DNV may accept alternative solutions found to represent an overall safety level equivalent to that stated in the requirements of this standard.

Ch.3 Sec.1 A
302 Any deviations, exceptions and modifications to the design codes and standards given as recognised reference codes shall be approved by DNV.

Ch.3 Sec.1
A 400 Documentation

Ch.3 Sec.1 A
401 Documentation for classification shall be in accordance with the NPS DocReq (DNV Nauticus Production System for documentation requirements) and DNV-RP-A201.

Ch.3

SECTION 2
Certification of Equipment

Ch.3 Sec.2
A. General

Ch.3 Sec.2
A 100 General

Ch.3 Sec.2 A
101 Equipment shall be certified consistent with its functions and importance for safety.

Ch.3 Sec.2 A
102 Equipment referred to in this standard will be categorised as follows:

Category I:
— equipment related to safety for which a DNV certificate is required.

Category I equipment is subdivided into IA and IB categorisation.

Category II:
— equipment related to safety for which a works certificate prepared by the manufacturer is accepted.

Ch.3 Sec.2 A
103 For equipment category I, the following approval procedure shall be followed:
— design approval, followed by a design verification report (DVR) or type approval certificate
— fabrication survey followed by issuance of a product certificate.

Ch.3 Sec.2 A
104 Depending on the required extent of survey, category I equipment is subdivided into IA and IB with the specified requirements as given below:

Category IA:
— pre-production meeting, as applicable, prior to the start of fabrication
— class survey during fabrication
— witness final functional, pressure and load tests, as applicable
— review fabrication record.

Category IB:
— pre-production meeting (optional)
— witness final functional, pressure and load tests, as applicable
— review fabrication record.

The extent of required survey by DNV is to be decided on the basis of manufacturer's QA/QC system, manufacturing survey arrangement (MSA) with DNV and type of fabrication methods.

Guidance note:
It should be noted that the scopes defined for category IA and IB are typical and adjustments may be required based on considerations such as:
- standard type approved products / MSA agreement
- complexity and size of a delivery
- previous experience with equipment type
- maturity and effectiveness of manufacturer's quality assurance system
- degree of subcontracting.

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Ch.3 Sec.2 A
105 Equipment of category II is normally accepted on the basis of a works certificate prepared by the manufacturer. The certificate shall contain the following data as a minimum:

—	equipment specification or data sheet
—	limitations with respect to operation of equipment
—	statement (affidavit) from the manufacturer to confirm that the equipment has been constructed, manufactured and tested according to the recognised methods, codes and standards.

Guidance note:
Independent test certificate or report for the equipment or approval certificate for manufacturing system may also be accepted.

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Ch.3 Sec.2
B. Equipment Categorisation

Ch.3 Sec.2
B 100 General

Ch.3 Sec.2 B
101 Categorisation of safety critical equipment is given in Table B1. Equipment that is considered important for safety, which is not listed, shall be categorised after special consideration.

Ch.3 Sec.2 B
Table B1 Categories for fire protection equipment
Component Category
IB II
Fire dampers, penetrations X
Fire water pumps X
Pressurised components in fire extinguishing system X
Fire hose X
Hose reels and associated equipment X
Nozzles X
Equipment for fixed fire fighting installations X
Fire resisting divisions and materials X
Fire rated doors X
Fire rated windows X
Fire and gas detectors X
Wheeled and portable extinguishing system X

—	design approval, followed by a design verification report (DVR) or type approval certificate
—	fabrication survey followed by issuance of a product certificate.

—	pre-production meeting, as applicable, prior to the start of fabrication
—	class survey during fabrication
—	witness final functional, pressure and load tests, as applicable
—	review fabrication record.

—	pre-production meeting (optional)
—	witness final functional, pressure and load tests, as applicable
—	review fabrication record.

-	standard type approved products / MSA agreement
-	complexity and size of a delivery
-	previous experience with equipment type
-	maturity and effectiveness of manufacturer's quality assurance system
-	degree of subcontracting.

Table B1 Categories for fire protection equipment
Component	Category
Component	IB	II
Fire dampers, penetrations	X
Fire water pumps	X
Pressurised components in fire extinguishing system		X
Fire hose		X
Hose reels and associated equipment		X
Nozzles		X
Equipment for fixed fire fighting installations	X
Fire resisting divisions and materials	X
Fire rated doors	X
Fire rated windows	X
Fire and gas detectors	X
Wheeled and portable extinguishing system		X

DNV-OS-D301 Fire Protection

CHAPTER 3

Certification and Classification

SECTION 1 Certification and Classification

Ch.3 Sec.1 A. General

Ch.3 Sec.1A 100 Introduction

Ch.3 Sec.1A 200 Assumption

Ch.3 Sec.1A 300 Alternative solutions

Ch.3 Sec.1A 400 Documentation

SECTION 2 Certification of Equipment

Ch.3 Sec.2 A. General

Ch.3 Sec.2A 100 General

Ch.3 Sec.2 B. Equipment Categorisation

Ch.3 Sec.2B 100 General