ANNEX IV

Non-road steady-state test cycles (NRSC)

Table IV-1: NRSC test cycles for engines of category NRE

Category

Speed operation

Purpose

Sub-category

NRSC

NRE

variable

Variable-speed engine having a reference power of less than 19 kW

NRE-v-1

NRE-v-2

G2 or C1

Variable-speed engine having a reference power greater than or equal to 19 kW but not more than 560 kW

NRE-v-3

NRE-v-4

NRE-v-5

NRE-v-6

C1

Variable-speed engine having a reference power greater than 560 kW

NRE-v-7

C1

constant

Constant-speed engine

NRE-c-1

NRE-c-2

NRE-c-3

NRE-c-4

NRE-c-5

NRE-c-6

NRE-c-7

D2

Table IV-2: NRSC test cycles for engines of category NRG

Category

Speed operation

Purpose

Sub-category

NRSC

NRG

variable

Variable-speed engine for generating set

NRG-v-1

C1

constant

Constant-speed engine for generating set

NRG-c-1

D2

Table IV-3: NRSC test cycles for engines of category NRSh

Category

Speed operation

Purpose

Sub-category

NRSC

NRSh

variable or constant

Engine having a reference power of not more than 19 kW, for use in hand-held machinery

NRSh-v-1a

NRSh-v-1b

G3

Table IV-4: NRSC test cycles for engines of category NRS

Category

Speed operation

Purpose

Sub-category

NRSC

NRS

variable < 3 600 rpm

Variable-speed engine having a reference power of not more than 19 kW, intended for operation < 3 600 rpm

NRS-vi-1a

NRS-vi-1b

G1

variable ≥ 3 600 rpm; or constant

Variable-speed engine having a reference power of not more than 19 kW, intended for operation ≥ 3 600 rpm; constant-speed engine having a reference power of not more than 19 kW

NRS-vr-1a

NRS-vr-1b

G2

variable or constant

Engine having both a reference power of between 19 kW and 30 kW and a total swept volume of less than 1 litre

NRS-v-2a

G2

Engine having a reference power greater than 19 kW, other than engine having both a reference power of between 19 kW and 30 kW and a total swept volume of less than 1 litre

NRS-v-2b

NRS-v-3

C2

Table IV-5: NRSC test cycles for engines of category IWP

Category

Speed operation

Purpose

Sub-category

NRSC

IWP

variable

Variable-speed engine intended for propulsion that operates on a fixed-pitch propeller curve

IWP-v-1

IWP-v-2

IWP-v-3

IWP-v-4

E3

constant

Constant-speed engine intended for propulsion that operates with a controllable-pitch or electrically coupled propeller

IWP-c-1

IWP-c-2

IWP-c-3

IWP-c-4

E2

Table IV-6: NRSC test cycles for engines of category IWA

Category

Speed operation

Purpose

Sub-category

NRSC

IWA

variable

Variable-speed engine intended for auxiliary use on inland waterway vessels

IWA-v-1

IWA-v-2

IWA-v-3

IWA-v-4

C1

constant

Constant-speed engine intended for auxiliary use on inland waterway vessels

IWA-c-1

IWA-c-2

IWA-c-3

IWA-c-4

D2

Table IV-7: NRSC test cycles for engines of category RLL

Category

Speed operation

Purpose

Sub-category

NRSC

RLL

variable

Variable-speed engine for propulsion of locomotives

RLL-v-1

F

constant

Constant-speed engine for propulsion of locomotives

RLL-c-1

D2

Table IV-8: NRSC test cycles for engines of category RLR

Category

Speed operation

Purpose

Sub-category

NRSC

RLR

variable

Variable-speed engine for propulsion of railcars

RLR-v-1

C1

constant

Constant-speed engine for propulsion of railcars

RLR-c-1

D2

Table IV-9: NRSC test cycles for engines of category SMB

Category

Speed operation

Purpose

Sub-category

NRSC

SMB

variable or constant

Engines for propulsion of snowmobiles

SMB-v-1

H

Table IV-10: NRSC test cycle for engines of category ATS

Category

Speed operation

Purpose

Sub-category

NRSC

ATS

variable or constant

Engines for propulsion of ATVs or SbS

ATS-v-1

G1

Non-road transient test cycles

Table IV-11: Non-road transient test cycle for engines of category NRE

Category

Speed operation

Purpose

Sub-category

NRE

variable

Variable-speed engine having reference power greater than or equal to 19 kW but not more than 560 kW

NRE-v-3

NRE-v-4

NRE-v-5

NRE-v-6

NRTC

Table IV-12: Non-road transient test cycle for engines of category NRS29

Category

Speed operation

Purpose

Sub-category

NRS

variable or constant

Engine having a reference power greater than 19 kW, other than engine having both a reference power of between 19 kW and 30 kW and a total swept volume of less than 1 litre

NRS-v-2b

NRS-v-3

LSI-NRTC

Only applicable for engines with maximum test speed ≤ 3 400 rpm.