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All test strictly according to the latest standards, provide test report and test pictures (according to customer's requirement).
The price is evenest, test cycle to test report as soon as possible.
Special equipment for testing, please see: http://www.cestr.com/cn/product/index.asp? Every 22
According to UL507 UL1278, UL1042 standards, will require a fan and the heater's level of voltage is 300 v, the 18 ~ 14 awg wire conductors must use "-r" type, "-r" type of wire to make the following four requirements increase performance tests, these tests will be increased in the new UL 62:
A.Abrasion
1. Provide test samples 5 PCS, each wire length 40 inch + / - 10%
2. Testing machine using 1/2 medium grade sandpaper
3. The wire at one end and 3.3 + / 0.1 N/t
4. Test, sand paper need to be updated once every 800 back and forth friction (which can be updated around, is not necessarily to replace the entire sandpaper)
5. Testing machine in a horizontal stroke 160 mm + / - 5%, pace back and forth is 28 + / - 1 per minute
6. After back and forth friction, 5000, 5 PCS samples under test can't use any of the conductor or mask exposure
B. Pinching
1. Provide test samples 5 PCS, each wire length stipulated according to the test equipment
2. The sample in the middle of the level of steel plate and briquetting (briquetting front-end pour R Angle 1.19 mm)
3.to 0.2 + / - 0.05 in/min speed on weight
4. The weight of 2254 n immediately after the flick
5. There cannot be broken wires, open circuit, short circuit and so on poor performance
6.5 PCS testing samples need testing
C. Crushing
1. Provide test samples 5 PCS, each wire length stipulated according to the test equipment
2. The sample in the middle of the level of steel plate and briquetting (briquetting front-end pour R Angle 1.19 mm)
3. The weight of 890 n applied to slowly wires (speed has no rules, but cannot be directly applied)
4. The force applied for 7 hours
5. There cannot be broken wires, open circuit, short circuit and so on poor performance
6.5 PCS testing samples need testing
D.Flexing
1. Provide test samples 6 PCS, each wire length stipulated according to the test equipment
2. Wire to applied voltage to 300 v, and according to the conductor size and not lines exert different load current, and connected to the different time delay fuse
3. At a speed of 20 laps per minute, curved 3100 laps
4. The wires from the bending at point 305 mm put 110 g weight of gravity
5. There cannot be broken wires, open circuit and short circuit performance such as bad, conductor wire break rate of less than or equal to 10%, inner conductor not puncture the insulating layer, there can be no mask exposure
Tip:
1. A, B, C three tests do not need to pick up the load
2. These tests are UL is still under review and is not listed on the UL62, but the basic can increase to the standard is established, and the test is removed from the UL507
3. These tests are required to fit the fan and heater products increases, the power cord to use other products don't need these tests
4. The purpose of these tests is to solve the fan and heater products when consumers use caused damage or fire damage to the power cord
5. Bending test machine is not equal with general plug bending test
6. UL507 the new standards will require on September 27, 2009
7. Not suitable for Canada to Mexico
8. More detailed description standard see UL62 page 18
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