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