Since atmospheric type vacuum breakers are subject to normal maintenance and replacement, they should be located where emergency water spillage will create no problem and where they can be accessible for inspection or servicing.

• 由于大气型真空断路阀需要正常的维护和更换，因此这类装置应该安装在紧急水泄漏或溢出不会产生问题的地方，还要容易接近进行检查或维修。