现场常见问题
Power in many parts of Laos, especially in the provinces and at mine sites, brings outages, sags, surges and rainy-season lightning. Equipment without a UPS drops hard, databases get corrupted and power supplies die early. The other case we see a lot: there is a UPS, but its batteries wore out two years ago and nobody noticed, so in a real outage it lasts thirty seconds.
UPS types and when to use them
| Type | How it works | Best for |
|---|---|---|
| Offline / standby | Switches to battery on outage | PCs, small devices |
| Line-interactive | Built-in AVR regulates voltage; transfers to battery in a few ms | Switches, NVRs, small offices |
| Online double-conversion | Converts AC→DC→AC continuously; zero transfer time | Servers, server rooms, critical loads |
For servers and core switches we use online UPS almost every time. It rides through wide voltage swings without dropping to battery at every sag, so the batteries are not worn out by constant cycling.
Sized from real load
We measure actual load in watts rather than reading power-supply labels. We choose a UPS with about 20–30% headroom, then size batteries for the runtime you need. Ten to fifteen minutes is usually enough to shut servers down cleanly. If outages last hours, the answer is a generator with an ATS, not cabinets of extra batteries.
More than a UPS
- Earthing that has been measured. Without a proper earth, surge protectors cannot do their job
- SPDs at the main board and sub-boards
- Data-line lightning protection on LAN or PoE runs going outdoors to cameras or other buildings
- Network management cards that shut servers and NAS down in order
Tell us what equipment you have and how many minutes it must run, and we will size the UPS and batteries. Or try the UPS runtime calculator on this site first.
功能
Online double-conversion UPS
Steady output with zero transfer time for servers and storage.
AVR & stabilizers
For network cabinets and NVRs: holds voltage through sags and swells.
Automated shutdown
Network cards shut down VMs, NAS and servers in sequence before the battery runs out.
Surge & lightning protection
SPDs on power and data lines, bonded to a proper earth.
Generator integration
UPS, ATS and generator for multi-hour outages, with the generator sized well above the UPS rating.
Battery lifecycle care
Yearly battery tests and replacement before failure. In a hot room, battery life roughly halves.
设计与实施
- 1
Measure power quality and test the earth.
- 2
Total all loads and agree the required runtime.
- 3
Select UPS topology, capacity, batteries and maintenance bypass.
- 4
Install SPDs, earthing, UPS and PDUs.
- 5
Configure shutdown and alerts, then cut the mains for a live test.
适用场景
- Mine and hydropower sites with an unstable grid and generators.
- Provincial bank branches keeping ATMs and core banking online.
- CCTV and switches that must keep recording through outages.
- Hospitals and labs with voltage-sensitive equipment.
常见系统规模
Edge
适用于: Network cabinets and NVRs
- 1–3 kVA line-interactive or online UPS
- Runtime calculation including PoE load
- Surge protection for outdoor PoE runs
Server Room
适用于: 1–4 racks
- 6–20 kVA online UPS with external batteries
- Network card and automated shutdown
- Maintenance bypass and PDUs
Facility
适用于: Data center or critical building
- Modular or parallel N+1 UPS
- ATS and generator integration
- Maintenance and battery-testing contract
我们供货并安装的品牌
所有品牌名称和商标归其各自所有者所有。除非另有明确说明,提及某品牌并不代表与其存在合作关系。产品均通过正规分销渠道采购。
常见问题
What is the difference between kVA and kW?
kW is real power; kVA is apparent power. Many modern UPSs have a 0.9–1.0 power factor, so a 10 kVA unit may deliver only 9 kW. Always size from the real kW load.
How long do UPS batteries last?
Typical VRLA batteries last about 3–5 years at 25°C. Every 10°C above that roughly halves their life, so a UPS in a 35°C room may need new batteries every two years. Lithium-ion lasts longer and tolerates heat better.
We have a generator. Do we still need a UPS?
Yes. A generator takes 10–30 seconds to start and pick up load, and its output often wanders. The UPS bridges that gap and cleans up the power.
相关指南
正确选型 UPS:VA、瓦数、功率因数与真实电池续航
为什么有些 3 kVA UPS 只能带 1,800 W,后备式、在线互动式与在线式如何选择,如何实事求是估算续航,以及 UPS 如何与发电机配合。
湿热气候机房检查清单:供电、制冷、安防与布线
我们在老挝新建或整改机房时实际使用的清单:电压不稳、空调故障、水浸、粉尘,以及没人写的文档。
3-2-1 备份原则(及 3-2-1-1-0)实践
全球通用的备份原则,勒索软件为何催生了额外的“1”和“0”,如何设定 RPO 和 RTO,恢复时间计算示例,以及如何适应老挝的电力和带宽条件。
办公网络设计:采购之前要先定下什么
为老挝 20–300 人办公室设计局域网、Wi-Fi、防火墙和供电时,工程师的决策顺序,附检查清单和分阶段预算。
双 ISP 互联网冗余:光纤被挖断时怎么办
主备切换还是负载均衡,如何挑选不会同时故障的两家运营商,所需设备,以及如何测试切换确保真正可用。
中小企业 IT 预算规划:别再坏了才买,按风险排优先级
资产盘点、更换周期、CapEx 与 OpEx、汇率风险,以及一家 50 人老挝企业的三年规划示例。
相关计算工具
监控存储计算工具
输入摄像机数量、分辨率、编码和保存天数,即可得出总 TB、单路码率及 NVR 硬盘/RAID 配置。
打开计算工具UPS 选型与续航计算工具
汇总服务器、交换机和 NAS 的负载,得出预留 25% 余量的 UPS 容量 (VA/W) 及扛过停电所需的电池能量。
打开计算工具PoE 功率预算计算工具
汇总摄像机、AP 和 IP 电话的 PoE 功耗,得出预留 20% 余量的交换机功率预算,并标出需 802.3bt 的 PTZ。
打开计算工具发电机与 ATS 选型计算工具
列出停电时必须运行的设备,得出能应对电机启动和 UPS 负载的发电机容量 (kVA),以及 ATS 规格和每小时油耗。
打开计算工具机柜规划工具
列出机柜内设备,即可得到所用 U 数、合适的机柜规格(壁挂或落地)、深度、功率、BTU/h 发热量和跳线数量,并附简易机柜示意图。
打开计算工具相关解决方案
数据中心与服务器
发给我们建筑平面图或几张现场照片
我们会先询问一些细节,再给出初步设计方案。首次咨询免费,可用老挝语、泰语或英语,通过 WhatsApp 或 Facebook 主页联系。
