| 梅州線路板UL認證,江門線路板UL認證 |
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價格：0 元(人民幣) | 產(chǎn)地：本地 |
| 最少起訂量：1件 | 發(fā)貨地：本地至全國 | |
| 上架時間：2017-11-01 15:41:52 | 瀏覽量：53 | |
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| 所屬行業(yè)：認證服務 | 主要客戶：蘇州 | |
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| 聯(lián)系人:陶靜 (小姐) | 手機:13913142465 |
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| 郵箱:sunny.tao@ycct.com.cn | 地址:獅山路75號 |
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CONDITIONS OF ACCEPTABILITY Unless specified otherwise in the individual Reports, consideration is to be given to the following Conditions of Acceptability when these components are employed in the end-use equipment: 1. Printed Wiring Board Identification — The printed wiring board is identified in accordance with the UL MARKING requirements noted below, and it can be determined that the part is made from the material specified. 2. Pattern Limits — The narrowest conductor width shall not be less than the indicated minimum width mid-board or edge conductor depending upon operating temperature conditions, as indicated in the end-product Report. "Flammability Only" boards are not investigated to determine the minimum acceptable conductor widths, maximum area conductor diameter, and/or the silver conductor limitations, and shall be considered during the end-product investigation. 3. Conductor Maximum Area Diameter — The maximum area diameter of conductors shall not be greater than the indicated maximum. 4. Conductor Thickness — Thickness or weight of conductors shall not be less than the indicated minimum. 5. Silver Conductors — The minimum spacing between any two silver conductors of different potential must not be less than that indicated. The silver conductors have been found suitable only for circuits that do not require a dielectric strength potential greater than that indicated between adjacent parts and conductors. "Flammability Only" boards are not investigated to determine if silver conductors are present on the board, and the effect of silver conductors on the board shall be considered during the end-product investigation. 6. Solder Limits — The temperature and dwell-time exposure during wave, flow, dip or an equivalent soldering operation for assembly-soldering processes shall not exceed the indicated maximum. The maximum dwell time is the cumulative time for all soldering operations when the soldering is done in different steps. During SMT soldering, the temperature and dwell time of each reflow zone shall not exceed the indicated maximum multiple solder-limit steps. The solder-limit temperature and dwell times do not apply to hand-soldering. 7. Maximum Operating Temperature — The maximum operating temperature of the metal-clad material shall not exceed the indicated maximum. The maximum operating temperature is not investigated for "Flammability Only" boards and shall be considered during the end-product investigation. 8. Flammability Classification — The flammability classification, with consideration to solder limits during the assembly process, shall comply with the flammability level acceptable for the applicable UL end-product standard. Coatings shall not be employed unless so indicated in the specified process. If the board assembler or end-product manufacturer applies any coating, the effect of the coating on the flammability of the board shall be determined in the end product. 9. Voltage Rating — No voltage rating is assigned. The suitability of the base material as insulation between live-metal parts and dead-metal parts shall be determined in the end product. 10. Minimum Spacing — Minimum required spacing between conductors of different potential and between these conductors and dead-metal parts. Cupping, twisting, bowing and/or warping of the board has not been investigated. 11. Minimum Dielectric Thickness — Minimum required dielectric/insulation thickness (distance through) between conductor layers has not been investigated regarding dielectric strength requirements in the end-product design. Additional Conditions of Acceptability may be included in the Report available from the manufacturer. (一) FR-4,FR-4.1,FR-5單面板及雙面板認證申請 (二) cem-1,cem-3單面板及雙面板申請 (三) FR-1,FR-3單面板及雙面板申請 (四) FR-4多層板申請 (五) 單面鋁基板僅燃燒認證和全認證申請 (六) 雙面鋁基板僅燃燒認證和全認證申請 (七) 多層鋁基板僅燃燒認證和全認證申請 (八) 銅基板 單面,雙面,多層 僅燃燒認證和全認證申請 (九) 柔性線路板(軟板)僅燃燒認證和全認證申請 (十) 軟硬結合板僅燃燒認證和全認證申請 (十一) 線路板基材認證申請 (十二) 線路板油墨認證申請 (十三) 覆蓋膜,電磁膜,屏蔽膜認證申請 (十四) 已有UL,增加CUL認證申請 (十五) 其他認證申請 (十六) XPC板材 22f板材 HB板材 V0板材 詳詢Sunny 陶13913142465 |
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