最新UL153 台灯、落地灯免温升要求要点解读

Requirement of Temperature Test-Exempt for protable lamp

UL153 台灯、落地灯

温度免检要求

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Index 索引 1． General 简述

2．Shade Designation 尺寸要求

3．Test on field

厂检测试

4．Marking & Instruction 标签及说明书

5．Others 其他

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1．General

1.1 An incandescent portable luminaire that complies with the requirements of this section is not required to be subjected to the Normal Temperature Tests .

1.2 A unit that incorporates the following additional features is not temperature test exempt: a) Employs a transformer, motor or similar electrical component that is able to generate heat;

b) Employs polymeric materials used as an enclosure, barrier, structural part, or water shield;

c) Employs a closed shade with total lamp wattage greater than 7 W;

d) Employs a shade or decorative part of a material that is able to melt or deform in such a way as to interfere with the normal operation of the lamp; or

e) Is intended for installation in or under a cabinet.

f) Employs a metal shell type medium base lampholder in the base-up position. 有如下结构的白炽灯具不包含在温度免检范围： a) 有马达、变压器等发热元器件 b) 外壳、挡件等有塑料材料 c) 大于7瓦的完全密封灯具

d) 灯身或装饰件在正常发热时会融熔 e) 厨柜灯

f) 有灯头上置的中型带金属的灯头

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United Standard Technologies Co., Ltd. 联标科技有限公司

1.3 Determination of temperature test-exempt status

1.3.1 The following steps are to be followed to determine when a portable luminaire complies with the temperature test exempt requirements:

a) Determine shade designation in accordance with 2.1;

b) Determine minimum lamp-to-shade spacings for shade designation, lampholder type and wattage in accordance with 2.2; and

c) Determine minimum wire insulation temperature rating in accordance with 2.3. 1.3.2 A portable luminaire is temperature test exempt when it complies with all the requirements of 1.3.1.

1.3.3 Portable luminaires with shade designs meeting the requirements of 2.7are temperature test exempt.

判定灯具是否符合温度免检的步骤： a) 判定灯罩的外形结构

b) 判定灯具的最小的灯－灯罩距离以及灯头类型和功率 c) 判定灯头引线的温度等级

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United Standard Technologies Co., Ltd. 联标科技有限公司

2 Shade designation

2.1 The shade designation required is to be assigned by determining when there are shade openings above and below the lamp, and when the opening size complies with the minimum area specified in Table 2.1 for the designation. Also see Figure 2.1 for examples.

Table 2.1

Shade opening size for open ?designations

灯罩是否开口的判定：

参考表2.1及图2.1，灯罩最小开口尺寸A必须大于表2.1的值才被认为是开口（Open）。 如75W的灯具，A的尺寸必须大于23mm(直径)或65平方厘米（面积）。.

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United Standard Technologies Co., Ltd. 联标科技有限公司

Figure 2.1

Dimension A is the minimum opening area specified in Table 2.1 shade opening size for open designations.

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United Standard Technologies Co., Ltd. 联标科技有限公司

2.2 The assigned shade designations are:

OPEN TOP / OPEN BOTTOM – A shade has this designation when an opening exists above and below the lamp of the minimum size specified in Table 2.1.上下开口

OPEN TOP / CLOSED BOTTOM – A shade has this designation when an opening exists above the lamp of the minimum size specified in Table 2.1. Any opening below the lamp is smaller than that required for the shade to qualify as Open Top / Open Bottom.上开下闭 CLOSED TOP / OPEN BOTTOM – A shade has this designation when an opening exists below the lamp of the minimum size specified in Table 2.1. Any opening that exists above the lamp is smaller than that required to qualify as Open Top / Open Bottom. 上闭下开 CLOSED TOP / CLOSED BOTTOM – A shade has this designation if when the openings above and below the lamp are smaller than the minimum size specified in Table 2.1. The maximum marked lamp wattage is 7 watts. 全密封

2.3 Any obstructions to an opening in the shade, including 4 inches (101.6 mm) above and below dimension A in Figure 2.1 for open designations, must be deducted from the area calculation to determine compliance with Table 2.1. The lamp itself, the lampholder (or a maximum 1/2 inch diameter nipple or rod to support the lampholder), or a simple harp or wire to support the shade are not identified as obstructions.

2.4 A shade with an obstruction meets the intent of the requirement when the remaining unobstructed area is at least 10 percent greater than the amount required for an otherwise unobstructed shade. 2.5 Lamp-to-shade spacing

2.5.1 Lamp-to-shade spacing required in 1.3.1(b) is to be determined by measuring the minimum distance from any point on the lamp centerline to the nearest point on a shade in accordance with Table 2.2 – Open Top/Open Bottom, Table 2.3 – Open Top/Closed Bottom, or Table 2.4 – Closed Top/Open Bottom, as applicable. See Figure 2.2 for an example of lamp-to-shade spacing measurement. 根据判定灯罩的开口形式，确定灯－灯罩距离

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United Standard Technologies Co., Ltd. 联标科技有限公司

Table 2.2

Open top / open bottom shade minimum lamp-to-shade spacing

上下开口形灯罩的最小灯－灯罩距离

Table 2.3

Open top / closed bottom shade minimum lamp-to-shade spacing

上开下闭形灯罩的最小灯－灯罩距离

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United Standard Technologies Co., Ltd. 联标科技有限公司

Table 2.4

Closed top / open bottom shade minimum lamp-to-shade spacing

上闭下开形灯罩的最小灯－灯罩距离

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United Standard Technologies Co., Ltd. 联标科技有限公司

Figure 2.2

Dimension ?A??is the lamp centerline length, and dimension 距离A是灯泡中线，钨丝中点到灯泡底座距离?

B??is the minimum lamp-to-shade spacing. Dimension 距离B是灯－灯罩距离，钨丝中点到灯罩的最短距离?

C??is the minimum shade height for closed top/open bottom only measured

for the highest elevation point along the lamp centerline to the shade. See 2.5.

距离C是对玉上闭下开形灯罩，钨丝中点到灯罩顶的距离

2.5.2 The lamp-to-shade spacing shall be evaluated with the shade in the position that results in minimum spacings unless the shade is constructed such that it is not able to be repositioned. A shade supported by a harp or one that clips on to a lamp is determined to be adjustable.

Exception No. 1: A shade made of metal, glass, or porcelain is evaluated in only the normal use position.

Exception No. 2: A shade that has been determined to be ignition resistant in accordance with Lamp Shade Ease of Ignition Test, Section 140, and also been evaluated for flame resistance in accordance with the Standard for Flame Propagation of Fabrics and Films, UL 214, is evaluated only in the normal use position.

Exception No. 3: A shade that is secured by a lamp harp that is fixed by welding, brazing, or by mechanical means is not required to comply with the above requirement. Shades supported by harps complying with the Lamp Harp Torque Test in Section 139 are evaluated in only the normal use position. Adhesives or sealants shall be evaluated for

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