Property building door key

According to what you said, the intercom door of each unit building in your community is equipped with an "electric lock", which is automatically closed by the door closer. So after the power failure, the door was locked. It is impossible to open the door without a key to open the electric lock.

According to common sense, the property company that manages the community should have keys (at least to the sanitation personnel), which depends on whether you (the owners' committee) agree or not to leave keys. It must be this key. The more others take, the less safe they are.

Usually, in the case of power failure, the unit door cannot be opened normally. The responsibility of the property is to remove the door closer on the unit door (suspend its automatic closing function), strengthen patrol and ensure the safety of the community.

Some residential building intercom systems are equipped with power supply (batteries provide power supply for building intercom), and short-term power failure (commercial power) will not affect the normal work of residential building intercom access control.

According to the current trend, most residential buildings are no longer equipped with electric locks, but with magnetic locks (unlocked with ID/IC cards or passwords, without keys). The electromagnetic lock is locked when there is electricity, and useless when there is no electricity, so the door can't be locked without electricity. But this is also its weakness-after the power failure, people who do bad things can come in and out freely.

In a word, the job of residential property personnel is to obey the arrangement of the owners' Committee team. Property personnel are the wages paid by all owners in your community (monthly property management fee)! ! !