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eLibrary >
24/30485847 DC BS EN IEC 60730-2-8 Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements >
24/30485847 DC BS EN IEC 60730-2-8 Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements, 2024
- 72_1411e_CDV.pdf [Go to Page]
- CONTENTS
- FOREWORD
- 1 Scope
- 2 Normative references
- 3 Terms and definitions [Go to Page]
- 3.2 Definitions of types of control according to purpose [Go to Page]
- 3.2.13 [Go to Page]
- 3.2.13.101
- 3.3 Definitions relating to the function of controls [Go to Page]
- 3.3.101
- 3.13 Miscellaneous definitions [Go to Page]
- 3.13.101
- 4 General [Go to Page]
- 4.3 General notes on tests [Go to Page]
- 4.3.2 Conditions of test
- 5 Required technical information [Go to Page]
- 5.2 Methods of providing technical information
- 5.4 Additional requirements for marking [Go to Page]
- 5.4.3 Markings for installation and servicing [Go to Page]
- 5.4.3.1 Not Applicable
- 6 Protection against electric shock [Go to Page]
- 6.1 General requirements
- 7 Provision for protective earthing
- 8 Terminals and terminations [Go to Page]
- 8.2 Terminals and terminations for internal conductors [Go to Page]
- 8.2.101 Additional requirements for electrically operated water valves
- 9 Constructional requirements [Go to Page]
- 9.3 Actuation and operation [Go to Page]
- 9.3.9 Manually actuated mechanisms
- 9.3.101 Separation of wetted parts from electrical parts
- 9.101 Nominal size and thread size of end-connections
- 10 Threaded parts and connections
- 11 Creepage distances, clearances and distances through solid insulation
- 12 Components
- 13 Fault assessment on electronic circuits [Go to Page]
- 13.1.2
- 13.1.3
- 13.1.4 [Go to Page]
- 13.1.4.1
- 13.1 Fault assessment for inherent safety [Go to Page]
- 13.1.3 Component fault assessment [Go to Page]
- 13.1.3.2 Test procedure
- 14 Moisture and dust resistance
- 15 Electric strength and insulation resistance
- 16 Heating [Go to Page]
- Additional subclauses:
- 17 Manufacturing deviation and drift
- 18 Environmental stress [Go to Page]
- 18.1 Transportation and storage
- 18.2 Environmental stress of temperature
- 19 Endurance [Go to Page]
- 19.1 General requirements [Go to Page]
- 19.1.5 Compliance Criteria
- 19.15 Test for particular purpose controls
- 20 Mechanical strength [Go to Page]
- 20.101 Resistance to water pressure [Go to Page]
- 20.101.1 General requirements
- 20.101.2 Test at 1,5 times maximum rated working pressure (test for external leakage)
- 20.101.3 Test at 5 times maximum rated working pressure (hydrostatic strength test)
- 20.101.4 Anti-water hammer characteristics [Go to Page]
- 20.101.4.1 General requirements
- 20.101.4.2 Pressure drop at low supply pressure
- 20.101.4.3 Pressure drop at rated inlet pressure
- 20.101.4.4 Transient pressure at high pressure
- 20.101.5 Test on valve bodies of thermoplastic material
- 20.102 Torque test [Go to Page]
- 20.102.1 General requirements
- 20.102.2 Valves with internal threaded end-connections
- 20.102.3 Valves with external threaded end-connections
- 20.102.4 Valves with end-connections for adaptors
- 20.102.5 Types of valves that do not require a torque test
- 21 Resistance to heat, fire and tracking
- 22 Resistance to corrosion
- 23 Electromagnetic compatibility (EMC) requirements – Emission
- 24 Normal operation [Go to Page]
- 24.2 Operation within the voltage range
- 25 Electromagnetic compatibility (EMC) requirements – Immunity
- 26 Abnormal operation tests [Go to Page]
- 26.1 Abnormal temperature test [Go to Page]
- 26.1.1 Burnout test [Go to Page]
- 26.1.1.1 Replacement:
- 26.1.1.2 Replacement:
- 26.1.1.3 Replacement:
- 26.1.2 Blocked mechanical output test [Go to Page]
- 26.1.2.1 Replacement:
- 26.1.2.2 Replacement of the first and second paragraph by the following:
- 26.1.101 Test with disconnected phase on three phase valves
- 26.1.102 Running overload [Go to Page]
- 26.1.102.1 A running overload test is carried out on valves with motorized electric actuators that are intended to be remotely or automatically controlled or liable to be operated continuously in unattended mode. If present, overload protective device...
- 26.1.102.2 The valve is operated under normal operation, carrying its rated load and supplied at rated voltage until the temperature of the motor windings stabilizes. The protector or protective circuit shall not operate or open the circuit while the ... [Go to Page]
- For all valves where the trip point in the sensing variable is not known or cannot be quickly determined (for example, temperature sensing, impedance protected motors, sensor-less motor protection, position sensing, etc.), the load to the valve is inc...
- For valves where the trip point in the sensing variable is known or can be quickly determined (example, current sensing), the load to the valve is gradually increased, in a controlled manner, until the protective device or protective circuit is activa...
- 26.1.102.3 During the test, the winding temperature of motors employing insulation for the protection against electric shock prior to the operation of the protective device or protective circuit shall not exceed
- 26.1.102.4 For valves which are used in a continuous operation for longer than 24 h without interruption the load is again increased and the test is repeated until the protective device operates or the motor stalls.
- 26.1.102.5 For valves which are used in operation mode which will not exceed 24 h without interruption, the test is repeated after the winding temperature has reached environmental temperature conditions. The test will be performed with an increased l...
- 26.1.103 Dry condition test
- Figures
- Annexes
- Annex H (normative) Requirements related to functional safety [Go to Page]
- H.25 Electromagnetic compatibility (EMC) requirements – Immunity [Go to Page]
- H.25.5 Voltage dips, voltage interruptions and voltage variations in the power supply network [Go to Page]
- H.25.5.1 Voltage dips and interruptions [Go to Page]
- H.25.5.1.101 Compliance
- H.25.5.2 Voltage variation test [Go to Page]
- H.25.5.2.101 Compliance
- H.25.6 Test of influence of voltage unbalance
- H.25.8 Surge immunity test [Go to Page]
- H.25.8.3 Test procedure
- H.25.8.101 Compliance
- H.25.9 Electrical fast transient/burst immunity test [Go to Page]
- H.25.9.3 Test procedure
- H.25.9.101 Compliance
- H.25.10 Electrostatic discharge test [Go to Page]
- H.25.10.101 Test procedure
- H.25.10.102 Compliance
- H.25.11 Radio-frequency electromagnetic field immunity [Go to Page]
- H.25.11.1.101 Additional requirements
- H.25.11.1.102 Test procedure
- H.25.11.1.103 Compliance
- H.25.12 Test of influence of supply frequency variations [Go to Page]
- H.25.12.3 Test procedure [Go to Page]
- H.25.12.3.101 Compliance
- H.25.13 Power frequency magnetic field immunity test [Go to Page]
- H.25.13.3 Test procedure
- H.25.13.101 Compliance
- Annex R (informative) National differences relevant in the United States of America [Go to Page]
- R.2 Normative references
- Annex S (informative) National differences relevant in Japan [Go to Page]
- S.2 Normative references
- Annex T (informative) National differences relevant in Canada [Go to Page]
- T.2 Normative references
- Annex AA (informative) Relation between different flow coefficients [Go to Page]
- AA.1 Kv value
- AA.2 Cv value
- Annex BB (informative) Arrangement for the measurement of transient pressures caused by water valves [Go to Page]
- BB.1 Test arrangement and measurement procedure
- Annex CC (normative) Long term pressure test for thermoplastic bodied valves [Go to Page]
- CC.1 Valves of thermoplastic material intended to be connected to the water supply mains
- CC.2 Valves of thermoplastic material intended to be connected to the water supply mains for the control of water for tap and shower outlets
- Annex DD (normative) Torque test [Go to Page]
- DD.1 Torque test for valves with internally threaded end-connections according to ISO 7-1 [Go to Page]
- DD.1.11 General
- DD.1.2 Torque test [Go to Page]
- DD.1.2.1 General
- DD.1.2.2 Torque test for two ports straight through equal size of inlet and outlet (see Figure DD.1 a)
- DD.1.2.3 Torque test for two ports straight through unequal size of inlet and outlet
- DD.1.2.4 Torque test for two or more ports under an angle (not on the same axis) of inlets and outlets of equal or unequal size
- DD.2 Torque test for valves with internally threaded end-connections according to ISO 228-1
- DD.3 Torque test for valves with internally threaded end-connections with ISO metric thread for compression fittings [Go to Page]
- DD.3.11 Olive type compression fittings
- DD.3.2 Flared compression fittings
- DD.4 Torque test for valves with externally threaded end-connections according to ISO 7-1
- DD.5 Torque test for valves with externally threaded end-connections according to ISO 228-1 or to ISO metric thread for compression fittings
- DD.6 Torque test for valves with adaptors
- DD.7 Torque test for valves with internally or externally threaded end-connections for NPT thread
- DD.8 Torque test for valves with internally or externally threaded end-connections for SAE thread
- Annex EE (informative) Arrangement for the measurement of transient pressures caused by water valves with a declared pressure of up to and including 1,0 MPa (10 bar) [Go to Page]
- EE.1 Description of test rig
- EE.2 Measurement procedure
- Bibliography [Go to Page]
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