UL Standard for Safety Automatic Electrical Controls – Part 2-14: Particular Requirements for Electric Actuators
|Publication Date:||7 August 2018|
This part of IEC 60745 deals with the safety of hand-held motor-operated or magnetically driven electric tools, the rated voltage of the tools being not more than 250 V for single-phase a.c. or d.c. tools, and 440 V for three-phase a.c. tools.
So far as is practicable, this standard deals with the common hazards presented by handheld tools which are encountered by all persons in the normal use and reasonably foreseeable misuse of the tools.
Tools with an electric heating element are within the scope of this standard. They should also comply with relevant parts of IEC 60335.
Requirements for motors not isolated from the supply, and having basic insulation not designed for the rated voltage of the tools, are given in Annex B. Requirements for rechargeable battery-powered motor-operated or magnetically driven tools and the battery packs for such tools are given in Annex K. Those for such tools that are also operated and/or charged directly from the mains or a non-isolated source are given in Annex L.
Hand-held electric tools, hereinafter referred to as tools, which can be mounted on a support or working stand for use as fixed tools without any alteration of the tool itself, are within the scope of this standard. Requirements for such supports or working stands are given in Annex M.
This standard does not apply to:
- hand-held tools intended to be used in the presence of explosive atmosphere (dust, vapour or gas);
- hand-held tools used for preparing and processing food;
- hand-held tools for medical purposes (IEC 60601);
- heating tools which are covered by IEC 60335-2-45.
For hand-held tools intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary.
For hand-held tools intended to be used in tropical countries, special requirements may be necessary.
NOTE Attention is drawn to the fact that in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities, etc.
1DV DR Addition: Add the following paragraph:
This standard deals with tools used in non-hazardous locations in accordance with the National Electrical Code, NFPA 70, and the Canadian Electric Code, Part 1, CSA C22.1, and General Requirements - Canadian Electrical Code, Part II, CAN/CSA-C22.2 No. 0.
This clause of Part 1 is applicable except as follows:
This part 2-14 applies to ELECTRIC ACTUATORS for use in, on, or in association with equipment for household and similar use. The equipment may use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof.
NOTE Throughout this standard part 2 the word ″equipment″ means ″appliance and equipment.″
EXAMPLE 1 ELECTRIC ACTUATORS for appliances within the scope of IEC 60335.
This International Standard is applicable to CONTROLS for building automation within the scope of ISO 16484.
This part 2-14 also applies to automatic ELECTRICAL CONTROLS for equipment that may be used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications.
EXAMPLE 2 CONTROLS for commercial catering, heating and air-conditioning equipment.
This part 2-14 is also applicable to individual ELECTRIC ACTUATORS utilized as part of a CONTROL SYSTEM or CONTROLS, which are mechanically integral with MULTIFUNCTIONAL CONTROLS having non-electrical outputs.
EXAMPLE 3 Independently mounted water valves, CONTROLS in smart grid SYSTEMS and CONTROLS for building automation systems within the scope of ISO 16484-2.
This part 2-14 does not apply to automatic ELECTRIC ACTUATORS intended exclusively for industrial process applications unless explicitly mentioned in the relevant part 2 or the equipment standard.
This part 2-14 applies to the inherent safety, to the OPERATING VALUES, OPERATING TIMES and OPERATING SEQUENCES where such are associated with equipment safety and to the testing of ELECTRIC ACTUATORS used in or in association with equipment.
NOTE Requirements for specific OPERATING VALUES, OPERATING TIMES and OPERATING SEQUENCES may be given in the standards for appliances and equipment.
This standard is also applicable to the FUNCTIONAL SAFETY of LOW COMPLEXITY SAFETY RELATED SYSTEMS and CONTROLS.
This part 2-14 does not apply to ELECTRIC ACTUATORS which are mechanically integrated with valves covered by a separate part 2, e.g. IEC 60730-2-8.
This part 2-14 does not apply to electric motors, requirements for which are contained in IEC 60034.
DV.2 DC Replacement of third and fourth paragraphs of 1.1.1 with the following:
This part 2 does not apply to electric actuators which are mechanically integrated with valves. See UL 60730-2-8, Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Electrically Operated Valves, Including Mechanical Requirements or the Standard for Electrically Operated Valves, UL 429.
This part 2 does not apply to electric motors, requirements for which are contained in UL 1004 series of standards.
DV.4 DR Modification of 1.1.1 by adding the following paragraph:
Electric actuators intended for plenum use are covered under the scope of this standard.
Requirements for manual switches not integral with an ELECTRIC ACTUATOR are contained in IEC 61058-1.
2DV.1 DC Replacement of 1.1.2 with the following:
Requirements for manual switches not integral with an electric actuator are contained in UL 61058-1.
This part 2-14 applies to a.c. or d.c. powered ELECTRIC ACTUATORS with a rated voltage not exceeding 690 V a.c. or 600 V d.c.
3DV.1 D2 Modification of 1.1.3 by adding the following text:
The maximum current is unlimited.
This part 2-14 does not take into account the RESPONSE VALUE of an AUTOMATIC ACTION of an ELECTRIC ACTUATOR, if such a RESPONSE VALUE is dependent upon the method of mounting the ELECTRIC ACTUATOR in the equipment. Where a RESPONSE VALUE is of significant purpose for the protection of the USER, or surroundings, the value defined in the appropriate household equipment or as determined by the manufacturer shall apply.