请注意:此版本的所有临时修订版将在您购买时提供。这些要求涵盖了单独要求中未涵盖的特殊类型的保险丝，这些保险丝适用于无线电和电视类设备 用来限制功率或电流，或两者兼而有之。这些要求也适用于打算接受此类特殊熔断器的支架，其中支架可能是一个整体 保险丝设计的一部分。然而，应注意的是，特殊熔断器符合这些要求并不能保证其可作为一个整体使用 最终使用产品中的保护装置。专用熔断器是一种单功能（仅提供保护）装置，用于在流过电流超过预选值时中断电流 价值它是不可更换的，也就是说，熔断器元件在运行后不能更换，但它可以是多功能（多功能）的- 元素）。这些要求所涵盖的任何特殊熔断器在任何特定装置或器具中的可接受性取决于其在本协议下持续使用的有效性 实际使用中普遍存在的条件。因此，对于特定应用，特殊保险丝可能会受到设备或设备的要求的影响 问题，并且可能有必要使用除这些要求中规定的功能以外或除这些功能之外的保护装置。包含新特性、特性、组件、材料或系统的产品，或与本标准要求涵盖的产品不同的产品，以及 涉及火灾、触电或人身伤害风险的，应使用适当的附加组件和最终产品要求进行评估，以: 确定维持本标准意图最初预期的安全水平。 一种产品，其特征、特性、组件， 与本标准的具体要求或规定相冲突的材料或系统不得被判定为符合本标准。在适当的情况下，进行修订 应根据制定、修订和实施本标准所采用的方法，提出并采用要求的定义。

Please note: All interim revisions for this edition available at time of your purchase will be included.These requirements cover special types of fuses not covered by separate requirements and that are for use in radio- and television-type appliances where they are relied upon to limit power or current, or both. These requirements also apply to holders intended to accept such special fuses, where the holder may be an integral part of the fuse design. It should be noted, however, that compliance of a special fuse with these requirements does not assure that it is acceptable for use as a protective device in the end-use product.A special fuse is a single function (providing protection only) device intended to interrupt a current flow when the current passing through it exceeds a preselected value. It is nonrenewable, that is, the fuse element cannot be replaced after operation, but it can be multi-operational (multi-element).The acceptability of any special fuse covered by these requirements in any particular device or appliance depends upon its effectiveness in continued use under the conditions that prevail in actual service. Accordingly, for a particular application, the special fuse may be affected by the requirements for the device or appliance in question, and it may be necessary to employ protective devices having features other than, or in addition to, those specified in these requirements.A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this Standard, and that involves a risk of fire, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements to determine that the level of safety as originally anticipated by the intent of this Standard is maintained. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this Standard shall not be judged to comply with this Standard. Where appropriate, revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this Standard.