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 2 of IEC 61010 specifies particular safety requirements for the following types a) to c) of electrical equipment and their accessories, wherever they are intended to be used, whenever that equipment incorporates refrigerating systems as an integral part of, or separate from, the equipment and the equipment is in direct control of the refrigerating system. It also details the requirements for stirling refrigeration systems.  

Addition:

dd) This document addresses all refrigeration systems and their associated components and piping using gaseous or liquid refrigerant or mixtures of refrigerants given in ISO 817.

Pressure equipment, assemblies and their components below or equal to the limits set out in points (A) for vessels and (B) for piping respectively shall be designed and manufactured in accordance with the sound engineering practice in this document.

Fluids with hazard statement H220 and H221 are considered group 1 fluids, where the maximum allowable temperature is above the flashpoint, and substances and mixtures with a maximum allowable temperature TS which exceeds the flashpoint of the fluid.

Fluids contained in group 2 (“non-dangerous fluids”) are fluids with no risk or other risks not quoted above associated with them.

A detailed list of can be found in Annex GG of this document.

A) Limits for vessels

This covers gases, liquefied gases, gases dissolved under pressure, vapours and those liquids whose vapour pressure at the maximum allowable temperature is > 0,5 bar above normal atmospheric pressure (1 013 mbar) within the limits detailed in Table CC.1 of Annex CC of this document.

B) Limits for piping

This covers liquids having a vapour pressure at the maximum allowable temperature of ≤ 0,5 bar above normal atmospheric pressure (1 013 mbar) within the limits detailed in Table CC.2 of Annex CC of this document.

Addition:

Add the following text after the last paragraph:

NOTE 101 Examples for refrigerating equipment include, but are not limited to, laboratory equipment such as laboratory refrigerators, freezers, refrigerated display cabinets.

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 will also apply. In particular, if equipment is intended to be used as a centrifuge, the requirements of IEC 61010­2­020 apply. However, when the equipment incorporates a refrigerating system and a heating function where the combination of the two introduces additional or more severe hazards than if treated separately, then it is possible that IEC 61010-2-012 is applicable instead of this Part 2-011.

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

1.1.2 Equipment excluded from scopeAddition:

Add the following after

d)This document does not apply to:

-          the evaluation of safety devices or components for pressure

-          equipment or components exceeding the limits in 1.1.1 as additional requirements apply and national or international legislation may set additional requirements.

-  Walk-in chambers

1.2 Object

1.2.1 Aspects included in scope

Replacement:

Replace the first paragraph by the following:

The object of this document is to ensure that the design and methods of construction of refrigerating equipment provide adequate protection for operators, bystanders, trained service personnel, and the surrounding area against the specific hazards that relate to refrigerating systems.Addition:Add the following note after the existing note:

NOTE 101 A list of hazards typically associated with refrigerating systems and refrigerants is included in Annex BB.

NOTE 102  For the EU, the sealed system components may be considered pressure vessels or piping in accordance with the PRESSURE EQUIPMENT DIRECTIVE (PED) 2014/68/EU. This standard address 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 (Annex CC.1) or piping (Annex 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 standard. However, the basic method applied in this standard is according to the method for complying with such additional requirements.