Temperature probesThe measurement of fluid temperature under pressure in nuclear power plants

Technical features

Utilisation

The temperature probes, based on RTD (Resistance Temperature Detector) technology, developed and manufactured by Rolls-Royce, allow the measurment of the temperature of fluids under pressure in PWR (Pressurized Water Reactor) nuclear power plants.These probes are installed on safety class 1E circuit.

Product range

Rolls-Royce manufactures a complete range of temperature probes, composed of standard response time probes, half high speed probes and ambient probes. All these probes are using the PT100 RTD technology.

Main features

Model Code Type of qualification Number of wires Temperature range Response time at 63%Standard BEVA K1 3 [0°C; +400°C] < 2 minutesStandard BEVK K3 3 [-32°C; +70°C] < 2 minutesStandard BEVL K2 4 [0°C; +400°C] < 2 minutesStandard BEVM K2 3 [0°C; +400°C] < 2 minutes

Half high speed BEVJ K1 4 [0°C; +400°C] < 9 secondesAmbient BEVT K3 3 [0°C; +400°C] < 2 minutes

Model Code Pressure test Vapour tightness Irradiation Vibration resistance Reference positionStandard BEVA Thermowell 260b / 15mn 6 bars abs 200Mrad Cobalt 60 2g max IndifferentStandard BEVK N/A 6 bars abs 200Mrad Cobalt 60 1g max IndifferentStandard BEVL Thermowell 260b / 15mn 6 bars abs 200Mrad Cobalt 60 2g max IndifferentStandard BEVM Thermowell 260b / 15mn 6 bars abs 200Mrad Cobalt 60 2g max Indifferent

Half high speed BEVJ Thermowell 260b / 15mn 6 bars abs 200Mrad Cobalt 60 2g max IndifferentAmbient BEVT N/A N/A N/A 1g max Indifferent

Other features

Maximal current, to stay in the required pressure: 1mA.

Maximal current, without damage: 40mA

Dielectric rigidity: 500V rms at 50Hz

Electric insulation:

>100MΩ à 20°C

>10MΩ à 300°C

The Rolls-Royce temperature probes satisfy the following qualification tests, according to EDF (Electricité De France) requirements:

HM/63 – 7195 : General requirement for the qualification of safety class 1E materials in PWR nuclear power plants

HM/63 – 7283 : Specific qualification tests requirement for temperature probes, category K1

Temperature probes manufactured by Rolls-Royce are class B according to the IEC 60751 standard. These are in agreement with the RCC-E.

Levels of qualification in accordance to RCC-E

K1 qualification: to ensure that equipment installed inside the containment is capable of performing its specified functions under seismic loading and under normal, accident and/or post-accident ambient conditions.

K2 qualification: to ensure that equipment installed inside the containment is capable of performing its specified functions under normal ambient conditions and under seismic loading.

K3 qualification: to ensure that equipment installed inside or outside the containment is capable of performing its specified functions under normal ambient conditions and under seismic loading.

Standards and qualifications

Customer Benefits

Measurement precision

K1 Qualification

Materials reliability

Experience and references on 24 French nuclear units(20 units1300MW + 4 units1450MW)

Temperature probes codification

3 first digits = Nuclear probes4th digit = Type of probe

Specific request: *3-wire probe – 1E-K1 – standard response time: A

3-wire probe non qualified BAR – standard response time: B3-wire probe non qualified BAN – standard response time: C

2 wounds 3-wire probe non qualified BAN – standard response time: D4-wire probe K1 – Half high speed response time: J

4-wire probe (ventilation) K3 – standard response time: K4-wire probe K2 – standard response time: L

3-wire probe K2 – standard response time: Mtype P thermowell: P

3-wire probe (wall) non qualified BAR – standard response time: Q4-wire probe K1 – fast response time: S

3-wire probe (ambiance) – standard response time: T3-wire probe (puisard) – standard response time: U3-wire probe (wall) K1 – standard response time: V

4-wire probe NC – ambient temperature, fast response time: X

5th digit= Type of thermowellSpecific request: *

Without: 0G ¾”, L1 = 100mm: A

G 1”1/4, L1 = 55mm: BG 1”1/4, L1 = 100mm: CG 1”1/4, L1 = 150mm: D

G 1”1/4, L1 = 200m: EG 1”1/4, L1 = 250mm: F

type P thermowell (pressurizer): Psample socket: Q

non qualified G 3/4” L1 = 100mm inner diam. 10.5mm: RK1 sink L1 = 3m: S

K1 sink L1 = 2.2m: TG ¾”, L1 = 55mm: U

6th digit= ThermowellWith: 0

Without: 1

7th digit= Extension length L2Specific request: *

Without: 0L2 = 80mm: 1

L2 = 140mm: 2L2 = 250mm: 3

8th digit = Version1300MW: 1

N4 and 900MW: 2Ambient high speed probe: 3

9th digit = Electrical connectionSteel CM12 gland: 0

Without mobile connector K1 (Deutsch): 1With mobile connector K1 (Deutsch): 2

Without mobile connector K1 (Souriau): 3Without mobile connector 845 (Souriau 3 broches) non K1: 4

With mobile connector 845 (Souriau) for dia.11 to 12mm cable: 5With mobile connector 8NA (Souriau): 6

Fixed connector 845 7 pin nickel-plated steel without mobile plug: 7Without mobile connector 8N45 (Souriau 3 broches) non K1: 8

Fixed connector Souriau 8NA without mobile plug 8NS: A

10th and 11th digit = Special option

1 2 3 4 5 6 7 8 9 10 11B E V

Thermowell codification1 2 3 4 5 6 7 8 9 10 11B E P 1 0

3 first digits = Thermowell for nuclear probes

4th digit = Type of probeSpecific request: *

3-wire probe – 1E-K1 – standard response time: A3-wire probe non qualified BAR – standard response time: B3-wire probe non qualified BAN – standard response time: C

2 wounds 3-wire probe non qualified BAN – standard response time: D4-wire probe K1 – Half high speed response time: J

4-wire probe (ventilation) K3 – standard response time: K4-wire probe K2 – standard response time: L

3-wire probe K2 – standard response time: Mtype P thermowell: P

3-wire probe (wall) non qualified BAR – standard response time: Q4-wire probe K1 – fast response time: S

3-wire probe (ambiance) – standard response time: T3-wire probe (puisard) – standard response time: U3-wire probe (wall) K1 – standard response time: V

4-wire probe NC – ambient temperature, fast response time: X

5th digit = Type of thermowellSpecific request: *

Without: 0G ¾”, L1 = 100mm: A

G 1”1/4, L1 = 55mm: BG 1”1/4, L1 = 100mm: CG 1”1/4, L1 = 150mm: D

G 1”1/4, L1 = 200m: EG 1”1/4, L1 = 250mm: F

type P thermowell (pressurizer): Psample socket: Q

non qualified G 3/4” L1 = 100mm inner diam. 10.5mm: RK1 sink L1 = 3m: S

K1 sink L1 = 2.2m: TG ¾”, L1 = 55mm: U

6th digit = ThermowellWith: 1

7th digit = Extension length L2Specific request

Without: 0L2 = 80mm: 1

L2 = 140mm: 2L2 = 250mm: 3

8th digit = Version1300MW: 1

N4 and 900MW: 2Ambient high speed probe: 3

9th digit and 10th digit = Special option

L1= 200

B = 67

4

12

3

5

6

Ø70D82

CB

L1

R=100

G1” ¼

C=220 for extension L2=250 D=540

C=110 “ “ “ L2=140 D=430

1 LOCA head (inox.)2 Knurled nut ( “ )3 Lock screw ( “ )4 Connector 5 Weld extension (inox.)6 Thermowell (Stainless steel Z2 CN 18.10)

Connection

For plug

For BOA

Pin number

or

7.5

Overall dimensions complete temperature probe with standard response time RTD probes K1 qualification – BEVAE type

Overall dimensions complete temperature probe with standard response time RTD probes K1 qualification – BEVAE type

4

12

3

5

65

Ø 6,35

A +1

Ø70 7,5

1 LOCA head (inox.)2 Knurled nut ( “ )3 Lock screw ( “ )4 3-pin connector DCIHN.51.12.93P. Deutsch5 Temperature sensor

Connection

Pin number

Thermowell type

G 1” ¼

Lg 200

Type P

Extension length

80

140

250

80

140

250

Dimension A +1

330

390

500

422

482

592

+ -

Overall dimensions complete temperature probe with half speed response time RTD probes K1 qualification K1 – BEVJ type

Overall dimensions complete temperature probe with half speed response time RTD probes K1 qualification – BEVJ type

L1= 200

B = 67

4

12

3

5

6

Ø70D82

CB

L1

R=100

G1” ¼

50 for extension L2=80 D=370

110 “ “ “ L2=140 D=430

220 “ “ “ L2=250 D=540

1 LOCA head (inox.)2 Knurled nut ( “ )3 Lock screw ( “ )4 Connector5 Welded extension (inox.)6 Thermowell (Stainless steel Z2 CN 18.10)

Connection

for plug

for BOA

Pin number

or

7.5

4

12

3

5

65

Ø 6,35

A +0,

5

255

+0,

5

Ø70 7,5

Ø 10

Ø 8

1 LOCA head (inox.)2 Knurled nut ( “ )3 Lock screw ( “ )4 4-pin connector D C IHN.51.19.4P. Deutsch5 Temperature sensor

Connection

Pin number

Thermowell type

G 1” ¼

Lg 200

Extension length

140

250

Dimension A +0,5

389,4

499,4

+ -

The information in this document is the property of Rolls-Royce plc and may not be copied, or communicated to a third party, or used, for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc.

While this information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or associated companies.

Ref: 0002/TS/0.1/Feb11

Rolls-Royce Civil Nuclear SAS23, Chemin du Vieux Chêne38246 Meylan, CedexFranceTel: +33 (0) 476 61 15 00Fax: +33 (0) 476 61 17 07

Data Systems & Solutions LLCdba Rolls-Royce994-A Explorer Blvd.Huntsville, AL 35806Tel: +11 423-756-9730Fax: +11 256-922-1540

www.rolls-royce.com

© Rolls-Royce plc 2011

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