标签：Spacing - 华人论坛

在加拿大 一客户要不锈钢拉手，描述为3 3/4” hole spacing，是什么意思呢？？？ 谢谢！ 刚刚得知答案，是这样换算的，分享给不懂的盆友。 3/4=0.75,3 3/4=3.75,3.75 *2.54cm=9.525 CM [ 本帖最后由 九月天 于...华人论坛

在加拿大 there shall be a spacing through air or over surface of not less than 1.2mm for a device rated at 250v or less. and not less than 3.2mm for a device rated at more than 250v between uninsulated live parts of opposite polarity and between an u...华人论坛

在加拿大 请教一下，在计算above ground pipe expansion loop spacing的时候，fully restrained (with anchors)和half restrained (support only)具体差别在哪里？计算anchor saddle宽度的时候垂直方向的影响能有多大？谢谢了...华人论坛