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Direction de l’Equipement EDF - SEPTEN PRESSURE - TEMPERATURE SWITCHES FOR NUCLEAR POWER PLANTS

REGULATEURS GEORGIN Specific organisation of PHYSAD activity ALL EQUIPMENT SUBJECT TO SPECIAL SPECIFICATIONS REQUIRED BY L'ELECTRICITE DE FRANCE LA DELEGATION GENERALE DE L'ARMEMENT RAIL TRANSPORT, SNCF, RATP, VAL AND RELATED ENTITIES EDF QUALIFICATIONS SEE TABLE OVERLEAF All equipment for EDF (Thermal, Nuclear, Hydraulic, Transport, etc.) Project Co-ordinator: Project Co-ordinator: Assistant : After Sales Service : Boris LIBERGE Pascal BOITTIN Brigitte LEFEBVRE Olivier YSAMBERT

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Gauge pressure switch Gauge pressure switch Temperature switch Explosion-proof gauge pressure switch Differential pressure switch SEPTEN SEPTEN SEPTEN SEPTEN SEPTEN SEPTEN SEPTEN SEPTEN SEPTEN SEPTEN SPH SEPTEN Temperature switch Gauge pressure switch Gauge pressure switch Differential pressure switch Differential pressure switch Gauge pressure switch Partially conv. + K3 Partially conv. + K3 Partially conv. + K3 Conventional + K3 Conventional + K3 Conventional + K3 INSTRUCTING PARTY Gauge pressure switch Gauge pressure switch Temperature switch Differential pressure switch Tight deadband...

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Manufacturer : PHYSAD DEPARTMENT 14-16 rue Pierre Sémard – B.P. 107 92323 CHATILLON Cédex Tél. : 01.46.12.60.00 – Fax : 01.47.35.93.98 To facilitate information searches according to the atmospheric environment : • Low rates • Restricted overpressure • Restricted pulsation • High rates • Overpressure • Pulsations • Average rates • Overpressure depending on model • Low pressures Device with bellows Device with tube or diaphragm Device with diaphragm Device with bellows Device with diaphragm Device With bellows PRESSURE • Low rates • Restricted pulsation DIFFERENTIAL • Average rates •...

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1.1 – 1.1.00 • Example Data 1300 MW Nuclear Power Station Version Please refer to file 1.1 - 1.1.02 for further information regarding this example. A pressure switch must ensure the stoppage of an air compressor in a sub-building by rising pressure. − − Other features of the chosen example: − Low rates, but with pulsation, − A maximum of 3 MPa (30 bar) static pressure, − Temporary overpressures : 5.5 MPa (55 bar). Selection Overpressures and pulsations require a diaphragm component. 2. A microswitch with adjustable deadband corresponding to the demand must be selected. 0.7 MPa (7 bar). 3....

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1.1 – 1.1.00 • ELECTRICAL CHARACTERISTICS • Contact Codes 96 1: Microswitch with dry contacts, nitrogen sealed, adjustable deadband. Manufactured by ABB CONTROL. 98: While maintaining the electrical properties of contact 96, this version is used to reduce minimal deadband significantly in manufacturing . Deadband is fixed here. 16: Where a special E.D.F. (French electricity service) dispensation is supplied, GEORGIN can provide other contacts. Contacts Manufacturer Use REP 900 Conventional Environment (A) REP 900 Nuclear Environment (BC and UTC) REP 1300 and N4 Conventional Environment (A)...

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PRINCIPLE Pressure (P) is applied to a ductile system (sensitive component) whose consecutive position variations effect an LP balance. The effort produced is balanced by an RP spring allowing the adjustment of the setpoint. Once the setpoint has been reached, the contact(s) detect the LP balance movement. All fluids compatible with the sensing component for relative static pressure between - 0.1 to 25 MPa (-1 to 250 bar). Low rates (4 requests/minute). Restricted overpressures. Specific − Use in hazardous zones - Explosion-proof material: "Certified as compliant with harmonised European...

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1.1 – 1.1.01 QUALIFICATION The following groups are qualified as K3 (according to the E-N-M-EL/93-35-C): − − − This K3 qualification is attributed only where the following specifications are present: − − − The differential value (deadband) is set to minimum, The operating value is at least one deadband value away from the setting point (value displayed on the device), The seismic-proof fixing regulations, particularly those integrated by the manufacturer, have been complied with. MANUFACTURING CHARACTERISTICS • General − Housing and cover manufactured in Mazak metal, − Sealing: weatherproof...

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Stainless steel screws, Nitric passivation, Helium sealing test, Connection seal in Ethylene Propylene rubber (EP). Standardized Finish (UTO) − Stainless steel screws and anticorrosion protection, − Helium sealing test, − Connection seal manufactured in Ethylene Propylene rubber (EP). Paint Finish A (conventional environment) and UTO (Standardized version): blue housing with a grey cover according to GEORGIN standard. BC (nuclear environment): Blue decontaminable epoxy alloy. ELECTRICAL CHARACTERISTICS

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MECHANICAL CHARACTERISTICS Maximum Acceptable Pressure in kPa (bar) Range Contact ID Code Minimum Deadband Maxi Deadband Top of Bottom of in kPa the range the range (bar) ≤ in kPa (bar) ≥ Partial References (1) Both ranges may also be manufactured in "absolute pressure switch" versions. (2) In the K and P ranges, maximum pressure is 1.3 MPa (13 bar) when equipped with a Tombac bellows and 1.5 MPa (15 bar) when equipped with a stainless steel bello

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1.1 – 1.1.01 Type Bellow pressure switch B See the table describing mechanical characteristics HB Contacts (See the table describing electrical characteristics file 1.1 – 1.1.00) 96 98 92(1) ABB CONTROL Microswitch (Adjustable deadband) ABB CONTROL Microswitch (Fixed deadband) HONEYWELL Microswitch (Fixed deadband) RANGE See the table describing mechanical characteristics Sensing Component Materials Stainless steel Other Environment Conventional Nuclear Standardized Version Fixed deadband equivalent to 50% of code 96 microswitch minimum deadband List of standardized references P96 P96 P96...

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