长飞光纤 紧套光缆 GYTA-2B1.3

评测依据

• review_count：2800
• rating_avg：4.6
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 01:03:26","to":"2026-06-26 01:03:26"}
• intros：{"brand_intro":"长飞光纤是全球最大的光纤预制棒及光纤光缆供应商之一，总部位于武汉。公司拥有自主知识产权的PCVD工艺，产品出口全球90多个国家。在安防、数据中心及5G领域提供全系列光缆解决方案，以低衰减、高一致性著称，是华为、中兴等设备商的优选供应商。","product_intro":"长飞GYTA-2B1.3紧套光缆采用2芯G.652D单模光纤，紧套结构配合芳纶纱加强件，兼具柔韧性与抗拉性。外护套为PVC材质，适用于室内管道、桥架及设备尾纤连接。特别适合安防视频监控系统中摄像机到交换机或光纤收发器的短距离跳接，支持千兆以太网传输。","key_specs":["光纤类型：G.652D单模","芯数：2芯","外护套：PVC","工作温度：-20℃~+70℃","抗拉力：短期1500N，长期600N","衰减：≤0.35dB/km @1310nm"]}
• alt_products：[{"product_name":"长飞光纤 紧套光缆 GYTA-2B1.3","brand":"长飞光纤","model":"GYTA-2B1.3","price":2.2},{"product_name":"烽火通信 紧套光缆 GYTA-4B1.3","brand":"烽火通信","model":"GYTA-4B1.3","price":2.8},{"product_name":"亨通光电 紧套光缆 GYTA-4B1.3","brand":"亨通光电","model":"GYTA-4B1.3","price":3}]
• kol_quotes：["长飞的光纤一致性很好，批量施工时很少出现衰减超标。","2芯紧套光缆对于单路监控点来说刚好够用，不浪费芯数。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":89.1,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价集中在\"做工精细、损耗稳定\"，尤其称赞其紧套结构在冷接和热熔时效率高。安防工程商反馈该光缆在穿管时阻力小，不易扭绞。部分用户认为PVC护套在高温环境下阻燃性略逊于LSZH，但整体耐用性满足多数室内场景。价格实惠，是预算有限项目的热门选择。","source_count":2}},{"source":"objective","score":92.71833333333332,"weight":0.5,"confidence":0.5,"details":{"rating_avg":4.6,"price":2.2,"wom_score":89.1}},{"source":"user_review","score":92,"weight":0.2,"confidence":1,"details":{"rating_avg":4.6,"review_count":2800,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["长飞的光纤一致性很好，批量施工时很少出现衰减超标。","2芯紧套光缆对于单路监控点来说刚好够用，不浪费芯数。"]}}]
• method_version：v2
• search_visual：null