UL514D 已经上传

UL514D 已经上传
求助，塑料开关面板要通过UL514D认证，一定是要通过5A阻燃测试吗？俺英文不好，大家帮我看看。这是部分514D的要求，做为答谢，大家帮我解释清楚后，将上传UL514D全文，当然也是英文版的。DIELECTRIC OLTAGE WITHSTAND TEST, UL514D, Para. 5.2.3UL Requirement - 4.3.2.3.1 - A molded material used for a coer plate shall withstand for 1 minute without breakdown the application of a 60 Hz, sinusoidal potential of 2500 ac.Exception No. 1: A coer plate molded of a material that has been found to withstand a 60 Hz, sinusoidal potential of at least 2500 ac is not required to be tested.Exception No. 2: A coer plate of phenolic or urea composition with a minimum thickness of 2.54 mm (0.1 in) is not required to be tested.UL Test Method - 5.2.3.1 - Six coer plates shall be subjected to the application of a 60 Hz, sinusoidal potential of 2500 olts ac across the thinnest section of the coer plate. Each sample shall then be conditioned for 24 h in moist air haing a relatie humidity of 85 ±5 percent at a temperature of 32 ±2°C (90 ±4°F). Following this conditioning, each sample shall again be subjected to the specified test potential.FLAME PENETRATION TEST (5A Test), UL514D, Para. 5.2.4UL Requirement - 4.3.2.4.1 - When subjected to the flame penetration test in accordance with Clause 5.2.4:a) a coer plate shall not openly flame for more than 1 minute after the fifth application of the test flame;b) there shall not be isible flame on the surface of the coer plate opposite the surface to which the test flame is applied; andc) there shall not be an opening through the coer plate after the test.Exception: A material designated 5A is not required to be tested.UL Test Method - 5.2.4.1 - Six coer plates shall be tested. Three shall be tested as-receied and three shall be tested after being conditioned for 168 h at a temperature of 90°C (194°F) in an air-circulating oen. Each sample shall be subjected to the test described in Clause 5.2.5.2 – 5.2.5.6, except that the ale supplying the gas shall be opened for 5 s and closed for 5 s in each of the fie applications of the flame.5.2.5.2 The test shall be conducted in a three-sided enclosure that is 305 mm (12 in) wide, 356 mm (14 in) deep, and 610 mm (24 in) high. The top and front of the enclosure shall be open. The room or hood in which the enclosure is located for the test shall be entilated, but drafts shall be preented from affecting the test flame.5.2.5.3 A Tirrill gas burner to which a gas pilot light is attached shall supply the test flame. The barrel of the burner shall extend 102 mm (4 in) aboe the air inlets, and its inside diameter shall be 9.5 mm (3/8 in). The gas supplied for the flame shall produce 30.198 ±0.296 kJ/m3 (1010 ±10 Btu/ft3). With the barrel ertical, the oerall height of the flame shall be adjusted to 127 mm (5 in). The blue inner cone shall be 38.1 mm (1-1/2 in) high. Without disturbing the adjustments for the height of the flame, the ales supplying gas to the burner and pilot flames shall be closed.5.2.5.4 A wedge to which the base of the burner can be secured shall be proided for tilting the barrel 20° from the ertical while the longitudinal axis of the barrel remains in a ertical plane. The burner shall be secured to the wedge and the assembly shall be placed in an adjustable jig that is attached to the floor of the enclosure. The jig shall be adjusted laterally (see Figure 5) to place the longitudinal axis of the barrel in the same ertical plane as the ertical axis of the specimen. The plane shall be parallel to the sides of the enclosure.5.2.5.5 The jig shall be adjusted toward the rear or front of the enclosure (see Figure 5) to position point A, which is the intersection of the longitudinal axis of the barrel with the plane of the tip of the barrel38.1 mm (1-1/2 in) from the point B, at which the extended longitudinal axis of the barrel meets the front surface of the specimen. Point B is the point at which the tip of the inner blue cone will touch the specimen. The specimen shall be adjusted ertically to place point B at the center of the specimen. The specimen is to be located so that the test flame is directed at the outside of the coer plate and does not impinge on any edge or opening of the coer plate.5.2.5.6 The ale supplying gas to the pilot shall be opened and the pilot flame lit. The ale supplying gas to the burner shall be opened to apply the flame to the specimen automatically. This ale shall be held open for15 s and then closed for 15 s. The procedure shall be repeated four times for a total of fie applications of flame to the specimen.FLAMMABILITY TEST, UL514D, Para. 5.2.5UL Requirement - 4.3.2.5.1 - A coer plate or outlet box hood shall not openly flame for more than 1 min after the fifth application of a standard test flame. Penetration of the flame through the specimen is allowed.Exception No. 1: A material designated 5A or 5B is not required to be tested.Exception No. 2: A remoable appendage – hinged coer, boot, or similar part – that is designated HB and intended solely to restrict the exposure of a deice opening to moisture is not required to be tested.UL Test Method - 5.2.5.1 - Six specimens shall be tested. Each specimen shall be one of the following:a) a square plaque haing minimum dimensions 102 x 102 mm (4 x 4 in) and a thickness not exceeding the minimum thickness of the coer plate;b) a circular plaque haing a minimum diameter of 114 mm (4.5 in) and a thickness not exceeding the minimum thickness of the coer plate; orc) a finished blank coer plate.5.2.5.2 The test shall be conducted in a three-sided enclosure that is 305 mm (12 in) wide, 356 mm (14 in) deep, and 610 mm (24 in) high. The top and front of the enclosure shall be open. The room or hood in which the enclosure is located for the test shall be entilated, but drafts shall be preented from affecting the test flame.5.2.5.3 A Tirrill gas burner to which a gas pilot light is attached shall supply the test flame. The barrel of the burner shall extend 102 mm (4 in) aboe the air inlets, and its inside diameter shall be 9.5 mm (3/8 in). The gas supplied for the flame shall produce 30.198 ±0.296 kJ/m3 (1010 ±10 Btu/ft3). With the barrel ertical, the oerall height of the flame shall be adjusted to 127 mm (5 in). The blue inner cone shall be 38.1 mm (1-1/2 in) high. Without disturbing the adjustments for the height of the flame, the ales supplying gas to the burner and pilot flames shall be closed.5.2.5.4 A wedge to which the base of the burner can be secured shall be proided for tilting the barrel 20° from the ertical while the longitudinal axis of the barrel remains in a ertical plane. The burner shall be secured to the wedge and the assembly shall be placed in an adjustable jig that is attached to the floor of the enclosure. The jig shall be adjusted laterally (see Figure 5) to place the longitudinal axis of the barrel in the same ertical plane as the ertical axis of the specimen. The plane shall be parallel to the sides of the enclosure.5.2.5.5 The jig shall be adjusted toward the rear or front of the enclosure (see Figure 5) to position point A, which is the intersection of the longitudinal axis of the barrel with the plane of the tip of the barrel38.1 mm (1-1/2 in) from the point B, at which the extended longitudinal axis of the barrel meets the front surface of the specimen. Point B is the point at which the tip of the inner blue cone will touch the specimen. The specimen shall be adjusted ertically to place point B at the center of the specimen. The specimen is to be located so that the test flame is directed at the outside of the coer plate and does not impinge on any edge or opening of the coer plate.5.2.5.6 The ale supplying gas to the pilot shall be opened and the pilot flame lit. The ale supplying gas to the burner shall be opened to apply the flame to the specimen automatically. This ale shall be held open for15 s and then closed for 15 s. The procedure shall be repeated four times for a total of fie applications of flame to the specimen.AGING TEST, UL514D, Para. 5.2.6UL Requirement - 4.3.2.6.1 - There shall not be eidence of cracking of a coer plate after the conditioning.Exception: A coer plate of phenolic or urea composition with a minimum thickness of 2.54 mm (0.1 in) is not required to be tested.UL Test Method - 5.2.6.1 - Six samples of a coer plate shall be exposed for 168 h at a temperature of 90 ±1°C (194±2°F) in an air-circulating oen.MECHANICAL STRENGTH TEST, UL514D, Para. 5.2.7UL Requirement - 4.3.2.7.1 - A coer plate shall not crack while subjected to the compressie force and shall not be permanently deformed such that the center of the plate is displaced more than 1.6 mm (0.0625 in) from its initial position.Exception: A coer plate of phenolic or urea composition with a minimum thickness of 2.54 mm (0.1 in) is not required to be tested.UL Test Method - 5.2.7.1 - Samples used for the mechanical strength test:a) shall be aged in accordance with Clause 5.2.6and shall be conditioned for 168 h at 50 percent relatie humidity at 23 ±2°C (73 ±4°F) prior to the application of the compressie force, orb) shall be untested samples conditioned for 168 h at a minimum of 60°C(140°F) prior to the application of the compressie force.[ 本帖最后由 OLANS_MAO 于 2007-5-24 09:57 编辑 ]

5.2.7.2 Each sample shall be placed face up and centrally located on two parallel 6.35 mm (0.250 in) diameter steel rods of such length that they extend beyond the extremities of the plate, and are spaced 60 mm (2.375 in) apart with the short edge of the plate parallel to the rods. A third, 6.35 mm diameter rod of similar length shall be placed on the face of the plate midway between and parallel to the other rods. The assembly shall be placed in a compression machine, the jaws of which close at the rate of 12.7 mm/min (0.50 in per min) (see Figure 1). The compressie force shall be applied until one of the following is obtained:a) a displacement of 6.35 mm (0.25 in); orb) a force of 111 N (25 lb)The test shall be repeated with the long edges parallel to the rods.5.2.7.3 The displacement of the coer plate from its original position shall be measured when the force is remoed.MOLD STRESS RELIEF TEST, UL514D, Para. 5.2.8UL Requirement - 4.3.2.8.1 - A coer plate shall not show eidence of distortion by an amount greater than or equal to 1.6 mm (0.0625 in).Exception: A coer plate of phenolic or urea composition with a minimum thickness of 2.54 mm (0.1 in) is not required to be tested.UL Test Method - 5.2.8.1 - Six samples of a coer plate shall be exposed for 7 h to a temperature of 90 ±1°C (194 ±2°F) in an air-circulating oen.The distortion of the coer plate shall then be determined by placing the coer plate face up on a flat surface and comparing the plate to the surface.

没有人知道吗？

不知道这个有没有帮助？

楼上这个我知道，但我想知道UL 514D具体含义。

上传UL 514D

要求啊要过的.

没人需要这个资料吗？

需要译么???? 好象内容也过多了点.....

就能解答我的疑惑就好了，不必全文翻译的

自己顶

我要

谢谢！要是有中文就好了。