防火外壳

kamiyo86 · 发表于 2013-6-22 09:38

dengwx 发表于 2013-6-22 09:05 2 J1 e; q5 O4 [
反问，怎么判定产品是否需要防火型外壳呢？

下面这些都需防火外壳：
– components in PRIMARY CIRCUITS;
– components in SECONDARY CIRCUITS supplied by power sources that exceed the limits
specifie in 2.5;
– components in SECONDARY CIRCUITS supplied by limited power sources as specifie in
2.5, but not mounted on material of V-1 CLASS MATERIAL;
– components within a power supply unit or assembly having a limited power output
as specifie in 2.5, including overcurrent protective devices, limiting impedances,
regulating networks and wiring, up to the point where the limited power source output
criteria are met;
– components having unenclosed arcing parts, such as open switch and relay
contacts and commutators, in a circuit at HAZARDOUS VOLTAGE or at a HAZARDOUS ENERGY
LEVEL; and
– insulated wiring.

sherryxj · 发表于 2013-6-22 21:14

要看你的产品是哪类别的，ClassI/ClassII/ClassII

		自动登录	找回密码
密码			注册安规

	安规论坛 \| 仪器设备 \| 求职招聘 \| 国家标准		公告 \| 教程 \| 家电 \| 灯具 \| 环保 \| ITAV		签到充值在线打卡设备		好友\| 帖子\| 空间\| 日志\| 相册
	IP淋雨机 \| 证书查询 \| 规范下载 \| 资质查询		招聘 \| 考试 \| 线缆 \| 玩具 \| 标准 \| 综合		红包邮箱打卡工资禁言		分享\| 记录\| 道具\| 勋章\| 任务

IP淋雨设备\| 恒温恒湿箱\| 拉力机\| 医疗检测设备	耐划痕试验机\|可程式恒温恒湿试验箱 \| 耦合器设备	水平垂直燃烧机\|灼热丝\|针焰试验机\|漏电起痕试验机
灯头量规\|试验指\|插头插座量规\|灯具检测设备	耐划痕试验机\|可程式恒温恒湿试验箱 \| 耦合器设备	广东安规-原厂生产-满足标准-审核无忧

[信息产品] 防火外壳

安规网为您推荐 /1