Reliable power supply is critical to the operation of HZLJ site. The power supply strategy of the HZLJ Site is as follows. The power system of the HZLJ Site has two 10KV power supplies, one Jiaozong line,one Rongzong line , When one line is abnormal, the other power supply line will be put into use immediately. Each line is connected with a 4 transformers (two-use/two-back up) to provide power for the HZLJ Site; when the city power supply fails, there is a diesel generator to provide power, The important equipment will be powered by diesel generators, and the Critical equipment is provided by UPS ,The use UPS can avoid the impact of unstable urban power supply on key equipment. ; The total power of the diesel generator is 1250KVA, and 875KVA is used, accounting for 70%, and there is still redundancy;The total power of the UPS is 985KVA, and 450KVA is used, accounting for 46%, and there is a large redundancy.As far as current equipment is concerned, our backup power supply is redundant, safe and reliable