GB 4706.88-2008Household and similar electrical appliances -- Safety -- Particular requirements for wet and dry vacuum cleaners, including power brush, for industrial and commercial use (English PDF)

Foreword

GB 4706 all technical contents of this section is mandatory.

This section is equivalent to using IEC 60335-2-69 "Household and Similar Electrical Appliances - Safety - Part 2. Industrial and commercial driving force of the brush Particular requirements for wet and dry vacuum cleaners "(1997) Second Edition.

This section should GB 4706.1-1998 "Household and Similar Electrical Appliances - Safety Part 1: General Requirements," with the use.

Safety Household and Similar Electrical Appliances consists of two parts, a first part of a universal requirement, the second part of a special security products Claim.

This section states that "suitable" section, indicates that the corresponding provision in this section apply to 4706.1-1998 GB; stated in this section "Instead of" section, this section shall prevail provisions; "modify" part of this section stated, represents the corresponding GB 4706.1-1998 Provisions relevant content should be content after this section takes effect, and the contents of the other provisions of this section still apply; write in this section That "increasing" section, showing in addition to the corresponding provision in line with GB 4706.1-1998, this section shall comply with the added provision.

This section will reference IEC 312. 1981 standard to the respective national standard GB/T 20291-2006 "domestic vacuum cleaners of To test method "(IEC 60312:2004, IDT).

Appendices Appendix properties in this section by the predetermined attribute GB 4706.1-1998.

This part of the increase in the terms of notes and charts should be numbered starting from 101 onwards.

1 Scope

GB 4706.1-1998 of this chapter except as follows, are applicable.

Addition.

This section applies to the electric vacuum cleaner includes a specially designated for wet and dry, with or without attachments wet suction, dry absorption or industrial and commercial Also in vertical suction equipment and appliances, for example for removing dust or the like with a suction device from the table and production equipment.

Note. The commercial is for hotels, schools, hospitals, factories, shops and office use, rather than for general housework purposes.

This portion is also suitable for collecting harmful dust, such as asbestos, or requires additional appliance liquid.

This section also applies to the use of other forms of energy prime mover appliances, but its effect must be considered.

modify.

Note replaced by the following two lines of the original contents 3.

--- GB 4706.7 applies for household appliances;

--- Stationary centralized vacuum system settings;

--- intend to use the appliance in locations where special conditions of a corrosive or explosive atmosphere (flammable gases or vapors) of.

Addition.

101 NOTE. For battery-operated appliance, shall refer to IEC 60335-2-72.

2 Definitions

GB 4706.1-1998 of this chapter except for the following content, are applicable.

2.2.9 article replaced by the following.

Normal operation of the vacuum motor, the input power Pm is calculated as follows. Pm = 0.5 (Pf + Pi) Where.

PF --- nozzle and hose work gear on 3min provided by the manufacturer when the measured maximum input power in watts (W is);

--- PI immediately after opening the nozzle work tool working 3min 20s of input power in the case of nozzle clogging watts Special (W).

When clogging intake manifold, the gas flow used to ensure that any cooling of the motor a valve or the like inoperative.

Pi and Pf measurement obtained in the following cases. the rated voltage adjusted supply voltage; if the threshold difference does not exceed the rated voltage range of the voltage range of the average Value of 10%, and the average nominal supply voltage range; if the tolerance range of the rated voltage exceeds the voltage range of the average 10% of the test Test case where the upper limit is adjusted to the rated voltage range of the supply voltage.

Test fixture fashion with clean dust filter and a dust bag, with a container for collecting the liquid if it is, should be empty. If the appliance only with a Hoses used, then remove the removable nozzle and the hose to expand straight. If the hose with backup appliance is not used at work hose.

Electric drive means is in operation, but not in contact with the ground or any other surface, or the means for closing the intake pipe of the same phase contact.

The electrical load is equal to the average normal load Pr agitating means (e.g., an electric brush) was determined as follows.

--- agitation device operates in compliance with the GB/T 20291-2006 specified in 5.1.1.2 carpet;

--- When using the apparatus in such a manner, the average load measured Pr;

After setting apparatus according to the manufacturer's instructions, it should produce the highest load in the direction of movement of more than twice the distance of 5m.

--- airflow motor and related work under the same conditions as the measurement Pf, namely. air flow without restrictions, measured after 3min get on;

--- as recommended by the manufacturer, the device is adjusted to accommodate the height of the carpet nap;

--- in the usual manner to be slow moving stirring means over the carpet, to avoid damage to the carpet.

3 General requirements

The chapter of GB 4706.1-1998 is applicable.

4 General Conditions Test

The chapter of GB 4706.1-1998 is applicable.

5 Void

6 Category

GB 4706.1-1998 of this chapter except for the following content, are applicable.

6.1 article replaced by the following.

Protection against electric shock, a vacuum cleaner and accessory devices should belong to class I, II III class or classes.

Carrying appliance for use on the body should belong II III class or classes. Compliance is checked by inspection and relevant tests.

7 Marking and instructions

GB 4706.1-1998 of this chapter except for the following content, are applicable.

8 Protection against access to live parts

GB 4706.1-1998 of this chapter except for the following content, are applicable.

9 Start electric appliances

no request.

10 Power input and current

The chapter of GB 4706.1-1998 is applicable.

11 Fever

GB 4706.1-1998 of this chapter except for the following content, are applicable.

12 Void

13 Leakage current and electric strength at the operating temperature

GB 4706.1-1998 of this chapter except for the following content, are applicable.

14 Void

15 Moisture resistance

GB 4706.1-1998 of this chapter except for the following content, are applicable.

15.2 Article replaced by the following

Appliance with a liquid container, shall be constructed so that the liquid is too full, and unstable liquid overturned appliances and handheld appliances caused by overflow Out, it will not affect their electrical insulation. Compliance is checked by the following test.

And a liquid container equipped with input jacks appliance equipped with a suitable connector and flexible cable or cord; to a liquid container and X-connected appliances specified in Table 11 with the minimum cross-sectional area of the cord test according to the delivery status of other appliances.

The liquid container of the appliance with an aqueous solution containing about 1% NaCl is filled, then again equal to 15% of the capacity of the container, or 0.25L An aqueous solution of the same concentration, whichever is more than the amount, duration in 1min injected into the container.

Container handheld appliances and utensils completely unstable after filled, close the lid, to tip it over from the most unfavorable position of normal use and stay in The location 5min, unless the appliance automatically returns to normal position.

101 Note: When the appliance was placed on a supporting surface 10 ° angle to the horizontal and in the most unfavorable position of normal use, which is dispensed into the liquid container manufacturer to use Description half the level specified height, if a 180N force is applied in the most unfavorable horizontal direction at the top, the appliance will tip over, These instruments are considered unstable.

Appliance then subjected to the following tests.

The nozzle is placed in a fixture sink, the sink surface and the bottom surface of the flat support means. 5mm above the bottom sink injection of Cleaning agents, this level remains constant during the whole test.

The mass concentration of the aqueous solution of NaCl and 20g 1mL of cleaning liquid into 8L of water by each of 28% sodium lauryl sulfate composition.

102 Note: for the water suction cleaning appliance overflow the test solution should be stored in cold temperatures, and should be used in formulating a good 7d. The chemical name is sodium lauryl sulfate C12H25NaSO4.

After the liquid container is completely filled, and then run the appliance at 5min under normal operating conditions.

After these tests, the appliance should be subjected to a predetermined electric strength test immediately 16.3, except that the test voltage to the appliance.

--- Basic insulation. 1000V;

--- Additional insulation. 2750V;

--- reinforced insulation. 3750V.

Inspection should indicate any liquid may enter the appliance should comply with the requirements of this section. In particular, it failed to lead climb-on-insulator Electrical distance and clearance is reduced below a predetermined limit value 29.1 trace of water.

103 Note: Test subjected appliance 15.3, 24h is placed under normal ambient conditions.

Since the structure of the appliance so that the contaminated fluid can not overflow container, 19.101 predetermined test is considered appropriate.

16 Leakage current and electric strength

The chapter of GB 4706.1-1998 is applicable.

17 Overload protection of transformers and associated circuitry

The chapter of GB 4706.1-1998 is applicable.

18 Endurance

18.101 appliance configuration such that it will not be sufficient to impair any electrical or mechanical failure comply with this part in normal use. Do not Since heat energy, vibration or the like, resulting in damage to the insulation, loose connectors and contacts.

18.102 self-resetting thermal circuit breaker provided with the motor should be equal to 1.1 times the rated voltage of the power supply voltage, in the case of a locked rotor, several Within minutes will heat circuit breakers, thermal circuit breaker until the completion of 200 duty cycle.

18.103 18.102 after completion of the test, the appliance shall withstand the test in Chapter 16.

19 Abnormal operation

GB 4706.1-1998 of this chapter except for the following content, are applicable.

19.101

Appliance is equipped with a valve closing means or container, 15.2 again subjected to the tests.

Stop-valve or other fluid that the closing device does not work. If there are two or more separate closing means, as long as they have passed through Test runs over 3,000 times, each time that only one of them does not work. Otherwise, not all of the tested device does not work.

101 Note: Be careful to avoid the suction pump unit motor overload pumping gas-liquid mixture. Input power should be observed in order to avoid overload.

20 Stability and mechanical hazards

GB 4706.1-1998 of this chapter except for the following content, are applicable.

21 Mechanical strength

GB 4706.1-1998 of this chapter except for the following content, are applicable. The chapter amended as follows. Value 0.5J ± 0.04J to 1.0J ± 0.04J.

21.101 vulnerable during normal use of the appliance part should be tested as follows. If the components are vulnerable to the impact of failure can lead to not meet the requirements of this specification, at the time of normal cleaning work, it may be on the red machine Hit or strike anywhere, it should have to withstand a blow of impact energy 6.75Nm. Since standing on the machine by the impact it should have been And 0.535kg 50.8mm diameter steel ball dropped from 1.3m quality height, or by the suspension on the rope acts as a pendulum from a 1.3m The height of fall were applied.

22 Construction

GB 4706.1-1998 of this chapter except for the following content, are applicable.

22.35 Article for the following modifications

Remove the comment.

Addition.

These components are subjected to impact test in Chapter 21. If this does not meet the requirements of insulation 29.2, subjected to the impact test described below.

The sample coated part was placed 7d (168h) at a temperature of (70 ± 2) °C is. After the sample was allowed to reach approximately room temperature.

Inspection should read. No shrinkage to the clad material no longer having the required degree of insulating properties, the insulating layer is not peeled off or that do longitudinal To move.

Thereafter, the sample for 4h at a temperature (-10 ± 2) °C in.

This sample was then subjected to a temperature shock is still using the apparatus shown in FIG 101. A 0.3kg mass of the weight is dropped from a height of 350mm Falls on hardened steel chisel B, the