A majority of door locks used by Chinese households are vulnerable to lock picking and should be upgraded to category B locks, the China Consumer's Association has said.
中国消费者委员会称大部分中国家庭的门锁很容易被撬开,应当尽快更新为B级锁。
B级锁即“category B locks”,security door(防盗门)门锁是分等级的,中国公安部1994年颁布了standard on mechanical locks(机械锁安全标准),将门锁分为category A locks(A级锁)和category B locks(B级锁),A级锁为normal security level(普通防护级别),B级锁为high security level(高级防护级别)。
专家表示,B级锁虽然也可以打开,但是打开时间长,会give the burglar much more psychological pressure(会给盗贼更强的心理压力),盗贼会放弃,从而防止break-in(入室偷窃)的发生。