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07 Aug, 2020 1833 Views Author: Cherry Shen

The Relevant Test Standards of Switches for Household and Similar Fixed Electrical Installations Safety and Environment Test

As more and more household appliances enter our daily lives, and peoples frequently use these electrical products, it required household appliances not only need meet users using demand in design but also need comply electrical safety design and use environment demand.
Reference standard:
GB 16915.1 <switches for household and similar fixed electrical installations>, international standard is IEC60669-1. This standard required test items mainly recommend by following standards:
• Recommend by GB 4208—2008 Enclosure rating (IP code) (IEC 60529: 2001);
• Recommend by GB/T 5169.11—2006 Fire hazard test for electrical and electronic products Part 11: Glow wire/hot wire basic test method Glow wire flammability test method of finished product (IEC 60695-2-11:2000);

IP is the abbreviation of Ingress Protection. IP grade is the protection level for electrical equipment shell against the foreign body intrusion. It comes from the international electrical commission standard IEC 60529 which was also used as the national standard of America in 2004. In this standard, for the protection level of electrical equipment shell against the foreign body intrusion, the IP level format is IPXX. In which the XX are the two Arabia number. The first tag number indicates the protection level of contact protection and external object protection; the second tag number indicates the protection level of waterproof. For the more specific protection level can refer to the table below.

Protection levels normally use IP with the following two figures to express. The numbers used to specify the protection level. The first number indicates the range of the device against dust, or the extent of people against damage in sealed environment. ‘I‘ represent the level of prevention of the entry of solid foreign bodies, and the highest level is 6; the second number indicates the level of the device against water. P representative the level prevent from water, the highest level is 8 such as protection level of motor IP65, IP55 and so on.

Dustproof Level:

Number

Protection Level

Definition

0

No protection

No special protection

1

Prevent objects from more than 50mm

Prevent the human body from accidentally touch the internal parts of the lamp, prevent the object intrusion which diameter is greater than 50mm

2

Prevent objects from more than 12mm

Prevent the finger from the internal parts of the lamp

3

Prevent objects from more than 2.5mm

Prevent the object, tool, wire intrusion which diameter is greater than 2.5mm

4

Prevent objects from more than 1.0mm

Prevent the mosquitoes, insects or objects intrusion which diameter of more than 1.0mm

5

Dustproof

Can not completely prevent dust intrusion, but the amount of intrusion of dust will not affect the normal operation of electrical

6

Dustproof

Completely prevent dust intrusion

Waterproof Level:

Number

Protection Level

Definition

0

No protection

No special protection

1

Prevent water dripping

Prevent vertical drop of water

2

Prevent dripping water intrusion even when inclined 15 degrees

Can still prevent dripping when the lamp is inclined 15 degrees,

3

Prevent the injection of water intrusion

Prevent rain, or vertical to the angle is less than 50 degrees in the direction of the water jet

4

Prevent splashing water intrusion

Prevent water from splashing in all directions

5

Prevent the ingress of water waves

Prevent the waves or spray holes rapidly sprayed water from intrusion

6

Prevent the ingress of water waves

Lamps and lanterns can still ensure the normal operation when into the water in a certain time or water pressure conditions,

7

Prevent water from immersing into the lamp

The lamp has no time limit for the submerged water under the condition of a certain water pressure, and can ensure the normal operation

8

Prevent the sinking

Prevent the sinking

LISUN developed JL-X (open type waterproof test equipment), JL-XC (chamber type waterproof test equipment) and SC series dustproof test chamber. They are full comply IEC60529-1、GB 4208—200 and other relevant standards. Please contact LISUN sales to learn more about JL-X/JL-SC and SC-015: JL-X open type waterproof test machine, JL-XC chamber type waterproof test equipment, SC-015 dustproof test chamber.

The GB/T 5169.11—2006 Fire hazard test for electrical and electronic products Part 11: Glow wire/hot wire basic test method Glow wire flammability test method of finished product (IEC 60695-2-11: 2000), suitable for fire hazard tests of electrical and electronic products, household appliances and their materials, and simulate the thermal stress caused by heat sources such as hot components or overload resistance or ignition sources in a short time.

The glow wire tester is to simulate the parts of insulating materials or other solid combustible materials that are easy to spread flames inside the equipment, which may ignite due to the glow wire or hot components. Under certain conditions, such as fault current flowing through the wire, component overload and poor contact, some components will reach a certain temperature and cause the nearby parts to ignite. Glow wire tester working principle: The nickel-chromium wire (U-shaped glow wire head) of the specified material Φ4 mm is heated to the specified temperature (300℃~1000℃) for the test with high current, and then it’s burned horizontally at the specified pressure (1.0N) Burn the test product for 30 seconds, whether the test product and the bedding are ignited or burned to determine the fire hazard of the finished electrical and electronic equipment; after the test is completed, record the burning time, ignition time (Ti), flame extinguishing time (Te), and combustible Sexual Index (GWFI).

LISUN developed ZRS-3H (standard version glow wire tester) and ZRS-3HS (compact version glow wire tester), they are full comply IEC60695-2-1, IEC60695-2-10~IEC60695-2-13 and GB /T5169.10-2006~GB /T5169.13-2006 standards, etc. Please contact LISUN sales to learn more about ZRS-3H/ZRS-3HS: ZRS-3H standard version glow wire tester, ZRS-3HS compact version glow wire tester.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Surge Generator, EMC Test SystemsESD Simulator, EMI Test Receiver, Electrical Safety Tester, Integrating Sphere, Temperature Chamber, Salt Spray Test, Environmental Test ChamberLED Test Instruments, CFL Test Instruments, Spectroradiometer, Waterproof Test Equipment, Plug and Switch Testing, AC and DC Power Supply.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp: +8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp: +8618917996096

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