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BSI 24/30485847 DC 2024

$13.70

BS EN IEC 60730-2-8 Automatic electrical controls – Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements

Published By Publication Date Number of Pages
BSI 2024 50
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PDF Pages PDF Title
4 CONTENTS
7 FOREWORD
10 1 Scope
11 2 Normative references
12 3 Terms and definitions
3.2 Definitions of types of control according to purpose
3.2.13
3.2.13.101
13 3.3 Definitions relating to the function of controls
3.3.101
15 3.13 Miscellaneous definitions
3.13.101
4 General
4.3 General notes on tests
4.3.2 Conditions of test
5 Required technical information
5.2 Methods of providing technical information
17 5.4 Additional requirements for marking
5.4.3 Markings for installation and servicing
5.4.3.1 Not Applicable
6 Protection against electric shock
6.1 General requirements
18 7 Provision for protective earthing
8 Terminals and terminations
8.2 Terminals and terminations for internal conductors
8.2.101 Additional requirements for electrically operated water valves
9 Constructional requirements
9.3 Actuation and operation
9.3.9 Manually actuated mechanisms
19 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
20 13.1.2
13.1.3
13.1.4
13.1.4.1
13.1 Fault assessment for inherent safety
13.1.3 Component fault assessment
13.1.3.2 Test procedure
14 Moisture and dust resistance
15 Electric strength and insulation resistance
16 Heating
Additional subclauses:
21 17 Manufacturing deviation and drift
18 Environmental stress
18.1 Transportation and storage
18.2 Environmental stress of temperature
22 19 Endurance
19.1 General requirements
19.1.5 Compliance Criteria
19.15 Test for particular purpose controls
23 20 Mechanical strength
20.101 Resistance to water pressure
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
20.101.4.1 General requirements
24 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
20.102.1 General requirements
25 20.102.2 Valves with internal threaded end-connections
20.102.3 Valves with external threaded end-connections
26 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
24.2 Operation within the voltage range
27 25 Electromagnetic compatibility (EMC) requirements – Immunity
26 Abnormal operation tests
26.1 Abnormal temperature test
26.1.1 Burnout test
26.1.1.1 Replacement:
26.1.1.2 Replacement:
26.1.1.3 Replacement:
26.1.2 Blocked mechanical output test
26.1.2.1 Replacement:
28 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
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 …
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…
29 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
30 Figures
Annexes
31 Annex H (normative) Requirements related to functional safety
H.25 Electromagnetic compatibility (EMC) requirements – Immunity
H.25.5 Voltage dips, voltage interruptions and voltage variations in the power supply network
H.25.5.1 Voltage dips and interruptions
H.25.5.1.101 Compliance
H.25.5.2 Voltage variation test
H.25.5.2.101 Compliance
H.25.6 Test of influence of voltage unbalance
H.25.8 Surge immunity test
H.25.8.3 Test procedure
32 H.25.8.101 Compliance
H.25.9 Electrical fast transient/burst immunity test
H.25.9.3 Test procedure
H.25.9.101 Compliance
H.25.10 Electrostatic discharge test
H.25.10.101 Test procedure
33 H.25.10.102 Compliance
H.25.11 Radio-frequency electromagnetic field immunity
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
H.25.12.3 Test procedure
34 H.25.12.3.101 Compliance
H.25.13 Power frequency magnetic field immunity test
H.25.13.3 Test procedure
H.25.13.101 Compliance
35 Annex R (informative) National differences relevant in the United States of America
R.2 Normative references
36 Annex S (informative) National differences relevant in Japan
S.2 Normative references
37 Annex T (informative) National differences relevant in Canada
T.2 Normative references
38 Annex AA (informative) Relation between different flow coefficients
AA.1 Kv value
AA.2 Cv value
39 Annex BB (informative) Arrangement for the measurement of transient pressures caused by water valves
BB.1 Test arrangement and measurement procedure
42 Annex CC (normative) Long term pressure test for thermoplastic bodied valves
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
44 Annex DD (normative) Torque test
DD.1 Torque test for valves with internally threaded end-connections according to ISO 7-1
DD.1.11 General
DD.1.2 Torque test
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)
45 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
46 DD.3 Torque test for valves with internally threaded end-connections with ISO metric thread for compression fittings
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
47 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
48 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)
EE.1 Description of test rig
EE.2 Measurement procedure
50 Bibliography
BSI 24/30485847 DC 2024
$13.70