Standards Development

Scope

This clause of Part 1 is applicable except as follows:

1.1.1 Equipment included in scope

Replacement:

Replace the second paragraph by the following:

This part of IEC 61010 specifies safety requirements for electrical equipment and its accessories within the categories 

a) through c), wherever it is intended to be used, whenever that equipment incorporates one or more of the following characteristics:

–   A refrigerating system that is acted on or impacted by an integral heating function such that the combined heating and refrigerating system generates additional and/or more severe hazards than those for the two systems if treated separately, and when containing or intended for use with hazardous fluids, whether flammable or under high pressure, such that additional and/or more severe hazards resulted than those for non-hazardous fluids.

–  The materials being treated in the intended application introduce significant heat into the refrigerating system, so that the refrigerating system in the application yields additional and/or more severe hazards than those for the refrigerating system if operated at the maximum rated ambient temperature alone.

–  An irradiation function for the materials being treated presenting additional hazards.

–  A function to expose the materials being treated to damp heat, carbon dioxide, salt mist, or other substances which can result in additional hazards.

–  A function of mechanical movement presenting additional hazards.

–  Provision for an operator to walk in to the operating area to load or unload the materials being treated.

This document details the requirements for equipment when containing or intended for use with

a)        non-flammable refrigerants of no charge limit including R-744 (CO2), in either subcritical and transcritical state, and

b)        flammable refrigerant where a single rupture of the refrigerant circuit may result in a refrigerant release to an occupied space,  with limited maximum refrigerant charge mc up to

‒           m1(equivalent to 4×LFL, R290, 150 g),

‒           2×m1 for non-fixed equipment,

‒           m2 (equivalent to 26×LFL) and

‒           m3 (equivalent to 130×LFL) and

c)         flammable refrigerant where a single rupture of the refrigerant circuit does not result in a refrigerant release to an occupied space, for example, in case of a liquid to liquid heat pumps, liquid to gas heat pumps, and cooling and/or heating baths and circulators, maximum refrigerant charge up to m3 may apply and no minimum room area is required, and

d)        flammable refrigerant where the construction and routine test are such that a refrigerant leak under normal use and single fault conditions is not considered likely possible, therefore, the equipment can be assumed to be intrinsically safe without limited by refrigerant charge and room size. Supplemental requirements may apply based on the risk mitigation approach and the flammable refrigerant employed in each refrigerant circuit.

Addition:

Add the following text after the last paragraph:

NOTE 101 Examples of such equipment include environmental testing and plant growth test chambers, refrigerating circulators which incorporate heating, and recirculating coolers for extracting heat.

NOTE 102 National and regional laws and regulations may apply, Examples include but are not limited to Pressure Equipment Directive PED 2014/68/EU, Boiler and Pressure Vessel Code, BPVC of ASME, USA, etc.

It is possible that all or part of the equipment falls within the scope of one or more other Part 2 standards of IEC 61010 as well as within the scope of this standard. In that case, the requirements of those other Part 2 standards also apply. This document is intended for application when one or more of the additional hazards described in the above dashed listed items are introduced. However, when the equipment incorporates only a refrigerating system or only a heating function or a combination of the two without introducing the additional hazards described in the above list, then IEC 61010-2-011 or IEC 61010-2-010 or both, as appropriate, apply instead of this Part 2-012.

See further information in the flow chart (Figure 102) for selection process and guidance in the Introduction.

NOTE 103 Term number 3.1.107 and Annex BB provide the definition and requirements for the protection of people who are inside walk-in equipment.1.1.2 Equipment excluded from scope

Addition:

Add the following items after item j):

aa) equipment for the heating, cooling, and ventilation of laboratories;

bb) sterilizing equipment (IEC 61010-2-040);

cc) the evaluation of safety devices or components for pressure equipment;

dd) equipment or components exceeding the limits in Table CC.1 or Table CC.2 as additional requirements apply and national or international legislation may set additional requirements.

1.2 

1.2 Object

Aspects included in scope

Addition:

Add the following items after item g):

aa) biohazards(see 13.101);

bb) hazardous chemical substances(see13.102).

Addition:

Add the following note after the existing note:

NOTE 101 A list of hazards typically associated with climatic and environmental testing and other temperature conditioning equipment is included in Introduction.

NOTE 102 For EU, the sealed system components may be considered pressure vessels or piping in accordance with the PRESSURE EQUIPMENT DIRECTIVE (PED) 2014/68/EU.

This document addresses equipment which is PED category ≤ I and so excluded from the scope of the PED according to Article 4 (3). Refer to Annex CC for guidance on the applicable pressure category for vessels (Table CC.1) or piping (Table CC.2).

For the equipment or the components, which are classified higher than category I and operated at this classification level, will have to follow additional requirements (such as EN 378-2, alternative standards are not excluded). These additional requirements are not covered by this document. However, the basic method applied in this document is according to the method for complying with such additional requirements.