Amendment 1 - Household and similar electrical appliances - Safety - Part 2-99: Particular requirements for commercial electric hoods

Describes successively the general qualification process, the qualification procedures and methods to be used and the associated documentation. Is applicable to electrical equipment of safety systems used in nuclear power plants.

Amendement 1 - Appareils électrodomestiques et analogues - Sécurité - Partie 2-99: Règles particulières pour les hottes de cuisine électriques à usage commercial

Décrit successivement le processus général de qualification, les procédures et méthodes de qualification à utiliser ainsi que la documentation associée. Est applicable aux équipements électriques des systèmes de sûreté utilisés dans les centrales nucléaires.

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Status
Published
Publication Date
18-Jun-2017
Current Stage
DELPUB - Deleted Publication
Completion Date
12-Nov-2021
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IEC 60335-2-99
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
A MENDEMENT 1
Household and similar electrical appliances – Safety –
Part 2-99: Particular requirements for commercial electric hoods
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-99: Règles particulières pour les hottes de cuisine électriques à usage
commercial
IEC 60335-2-99:2003-02/AMD1:2017-06(en-fr)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 60335-2-99
Edition 1.0 2017-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
A MENDEMENT 1
Household and similar electrical appliances – Safety –
Part 2-99: Particular requirements for commercial electric hoods
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-99: Règles particulières pour les hottes de cuisine électriques à usage
commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.20 ISBN 978-2-8322-4269-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60335-2-99:2003/AMD1:2017
© IEC 2017
FOREWORD

This amendment has been prepared by IEC technical committee 61: Safety of household and

similar electrical appliances.
The text of this amendment is based on the following documents:
FDIS Report on voting
61/5366/FDIS 61/5394/RVD

Full information on the voting for the approval of this amendment can be found in the report

on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability date indicated on the IEC website under

"http://webstore.iec.ch" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing

organizations may need a transitional period following publication of a new, amended or revised IEC publication in

which to make products in accordance with the new requirements and to equip themselves for conducting new or

revised tests.

It is the recommendation of the committee that the content of this publication be adopted for implementation

nationally not earlier than 12 months or later than 36 months from the date of publication.

_____________
1 Scope
Add the following at the end of the first paragraph:
The following extraction systems are covered as well:
• back draft ventilation systems;
• downdraft ventilation systems;
• fume extraction modules.

Add, in the second paragraph, the words, “and similar”, after the words, “…..not intended for

household”, to read:
“…not intended for household and similar use,…”.
Replace Note101 by the following:
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IEC 60335-2-99:2003/AMD1:2017 – 3 –
© IEC 2017

NOTE 101 Hoods are used for example in kitchens of restaurants, canteens, hospitals and in commercial

enterprises such as bakeries, butcheries, etc.
In Note 102, add the following dashed item:

– for hoods incorporating a filter system with means for ionizing the air, IEC 60335-2-65 also applies.

2 Normative references
Replace the existing text by the following:
This clause of Part 1 is applicable except as follows.
Addition:

ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1:

Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread

ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 1:

Bolts, screws and studs

ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 2:

Nuts

ISO 3506-3, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 3:

Set screws and similar fasteners not under tensile stress

ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 4:

Tapping screws
3 Definitions
Replace the title of Clause 3 but not the clause number by the following:
Terms and definitions
3.101 Replace the term definition and notes as follows:

motor-operated appliance intended to collect and remove contaminated air from catering

appliances

Note 1 to entry: The contaminated air may pass through filter systems and be discharged back into the room or

removed from the room.
7 Marking and instructions
7.6 Delete this subclause.
7.12 Replace the last paragraph of the addition by the following:
The instructions shall include the substance of the following:

These appliances are intended to be used for commercial applications, for example in

kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries,

butcheries, etc., but not for continuous mass production of food.
---------------------- Page: 5 ----------------------
– 4 – IEC 60335-2-99:2003/AMD1:2017
© IEC 2017

If the manufacturer wants to limit the use of the appliance to less than the above, this has to

be clearly stated in the instructions.
Modification:

The instructions concerning persons (including children) with reduced physical, sensory or

mental capabilities or lack of experience and knowledge and children playing with the

appliance are not applicable.
7.12.1 Add to the last sentence of the second paragraph “or a steam cleaner”.
Add the following new subclause:
7.12.9 Not applicable.
11 Heating
11.2 Replace the text as follows:
11.2 Replacement:
Hoods are operated in accordance with the manufacturer’s instructions.

Hoods intended to be placed above a hob are installed so that the distance between their

lowest point and the hob surface is the minimum distance specified in the instructions for

installation. The hob selected for the test shall have uniformly arranged gas burners with a

total heat input equal to 30 kW/m of the gross area (width times depth) of the hood. Vessels

containing water are placed without lids on the gas burners, which are operated to maintain

boiling. The diameters or sizes of the vessels are approximately equal to that of the cooking

zones.

Other hoods are operated in the most severe conditions according to the manufacturer’s

instructions.

Hoods intended to be used in combination with other appliances are tested in combination

with the other appliance in normal operation. Hoods that are not interlocked with the

appliance are also tested with the appliance in operation and the fan switched off.

Hoods are placed in a test corner as follows:

– hoods normally fixed to a wall are fixed to one of the walls, as near to the other wall and

floor or ceiling as is likely to occur, taking into account the instructions;

– hoods normally fixed to a ceiling are fixed to the ceiling as near to the walls as is likely to

occur, taking into account the instructions;
– other hoods are placed as near to the walls as possible.

Dull black-painted plywood approximately 20 mm thick is used for the test corner.

Hoods intended to be used in combination with other appliances are placed as required for

the appliance.
13 Leakage current and electric strength at operating temperature
13.2 Replace the text of the modification by the following:
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IEC 60335-2-99:2003/AMD1:2017 – 5 –
© IEC 2017

Instead of the permissible leakage current for stationary class I appliances, the following

applies:

– for cord and plug connected appliances 0,75 mA or 1 mA per kW rated power input

of the appliance with a maximum of 10 mA,
whichever is higher.
– for other appliances 0,75 mA or 1 mA per kW rated power input
of the appliance with no maximum, whichever
is higher.

For portable class I appliances, instead of the permissible leakage current, the following

applies:

– for cord and plug connected appliances 0,75 mA or 1 mA per kW rated power input

of the appliance with a maximum of 10 mA,
whichever is higher.
15 Moisture resistance
Delete Subclause 15.3 and replace the text by the following:
This clause of Part 1 is applicable.
16 Leakage current and electric strength
16.2 Replace the text of the modification by the following:

Instead of the permissible leakage current for stationary class I appliances, the following

applies:

– for cord and plug connected appliances 0,75m A or 1 mA per kW rated power input

of the appliance with a maximum of 10 mA,
whichever is higher;
– for other appliances 0,75 mA or 1 mA per kW rated power input
of the appliance with no maximum, whichever
is higher.

For portable class I appliances, instead of the permissible leakage current, the following

applies:

– for cord and plug connected appliances 0,75 mA or 1 mA per kW rated power input

of the appliance with a maximum of 10 mA,
whichever is higher.
19 Abnormal operation
19.101 Replace the existing text as follows:

Hoods intended to be placed above a hob are operated as specified in 11.2, but without

vessels and with all gas burners switched on.
20 Stability and mechanical hazards
Add the following new subclause:
20.1 Addition:
---------------------- Page: 7 ----------------------
– 6 – IEC 60335-2-99:2003/AMD1:2017
© IEC 2017

Portable hoods provided with wheels are placed in the most unfavourable position against an

edge with a height equal to the radius of the wheels plus 10 mm. If the wheels differ in size,

that edge height that is the most unfavourable is chosen.

A force equal to 8 % of the mass of the fully equipped appliance is applied horizontally to the

middle of the top edge of the appliance but not higher than 900 mm, in the most unfavourable

direction.
The appliance shall not tilt.
22 Construction
22.8 Delete Note 101.
22.102 Replace the existing text by the following:

For three-phase appliances, thermal cut-outs protecting motors the unexpected starting of

which may cause a hazard shall be of the non-self-resetting and trip-free type, and shall

provide all-pole disconnection from related supply circuits.

For single-phase appliances, thermal cut-outs protecting motors the unexpected starting of

which may cause a hazard shall be of the non-self-resetting and trip-free type, and shall

provide at least one-pole disconnection.

If the non-self-resetting thermal cut-out is only accessible after removing parts with the aid

of a tool, the trip-free type is not required.

NOTE Thermal cut-outs of the trip-free type have an automatic action, with a reset actuating member, so

constructed that the automatic action is independent of manipulation or position of the reset mechanism.

Compliance is checked by inspection and by manual test.
22.105 Replace the existing text by the following:

Hoods shall be constructed so that parts liable to accumulate deposits of grease, including

parts located behind a filter, can be cleaned.
Compliance is checked by inspection.
22.106 Delete this subclause.
25 Supply connection and external flexible cords
25.7 Replace the existing text as follows:
25.7 Addition:

Supply cords shall be oil-resistant, sheathed cords. Their properties shall be at least those of

ordinary polychloroprene sheathed cords (code designation 60245 IEC 57).
28 Screws and connections
Replace the existing text by the following:
---------------------- Page: 8 ----------------------
IEC 60335-2-99:2003/AMD1:2017 – 7 –
© IEC 2017
This clause of Part 1 is applicable except as follows.
28.1 Addition:

Screws made of carbon steel and alloy steel shall be made in accordance with ISO 898-1.

Screws made of corrosion-resistant stainless-steel shall be made in accordance with

ISO 3506-1, or ISO 3506-2, or ISO 3506-3, or ISO 3506-4.
28.4 Addition:

Screws that make mechanical connections and electrical connections shall be so designed

that the contact pressure does not change appreciably through loosening of the screwed

assembly parts during operational stress and contact corrosion.

Screws that make mechanical connections and provide earthing continuity shall be so

designed that the contact pressure does not change appreciably through loosening of the

screwed assembly parts due to operational stress and contact corrosion. They shall be

designed so that a minimum contact pressure remains.

Compliance is checked by inspection and by measuring the assembling torques for screwed

connections providing earthing continuity by applying a torque as specified in Table 102 to

turn the screw in the fastening direction. The screw shall not turn.
The screw shall not have been unfastened prior to performing this test.

Table 102 – Assembling torques for screwed connections providing earthing continuity

Assembling torque
Outer thread
Screwed connections for the mechanical Screwed connections for the mechanical
diameter of

strength of the screws A2-70 according to strength of the screws > 8.8 according to

the screw
ISO 3506-1, or ISO 3506-2, or ISO 3506-3, ISO 898-1
or ISO 3506-4 and 5.8 according to
ISO 898-1
> 2,8 and ≤ 3,6 0,8 1,3
1,9 3,0
> 3,6 and ≤ 4,2
3,7 6,0
> 4,2 and ≤ 5,3
> 5,3 and ≤ 6,3 6,5 10,0
M 8 15,0 25,0
M 10 31,0 50,0
30 Resistance to heat and fire
30.1 Replace the text of the addition by the following:

The ball pressure test is carried out on the exposed parts of the appliance at a temperature of

at least 105 °C ± 2 °C.
30.2.1 Replace the text of the modification by the follow
...

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