Water and Electricity Acceptance Details Hidden Project Acceptance Details
Waterways, circuits, carpenters, etc. are very important hidden works in the decoration, and they are also the main contents of the first acceptance. What are the points that need to be noticed for the first acceptance? Listed some intuitive data for everyone today, for their own acceptance of the owner's reference. First, circuit construction 1, strong and weak wire wiring should be separated 300mm. 2. The dark line shall be laid with pipes, except for the hollow floor slab (sheathed line for hollow floors), strong and weak electricity cannot penetrate into the same pipe. The wires inside the tube should be loose. (Acceptance Criteria) 3. There must be no joints in the wire conduits. After the water and electricity are completed, the open ends of all switches and sockets must be wrapped with insulating tape to avoid the risk of electric shock. (job specification) 4. When installing the power socket, the left and right phases (fire) should be left and the ground line above. Fire line into the switch, zero line into the lamp. 6, bathroom socket should be splash-proof. (Acceptance Criteria) 7. The power outlet is generally 300mm from the ground, and the switch ground is generally 1400mm. If there are special requirements, special treatment is required (such as a wall-mounted air conditioning outlet). (acceptance criteria, job specification) 8. The lighting wire is 1.5BV, the socket wire is 2.5BV, the ground wire is 2.5BVR, and the air conditioning and special power wire is 4BV. Air conditioning and high-power appliances should be routed separately. (Acceptance Criteria) 9, gas pipe (natural gas pipe), must go out of the tube, can not be sealed, if the need to transfer the gas must be operated by the company. (acceptance criteria, job specification) 10, wire, hot water, gas pipes should maintain a certain distance between each other, shall not be close. Second, waterway construction 1. The pipeline shall be laid horizontally and vertically without any looseness, and the slope shall conform to the requirements. Dark pipe pipes embedded in walls and floors should be preserved and protected with cement mortar. 2. The installation of hot and cold water pipes should be left hot and right cold, and the parallel spacing between hot and cold water pipes should not be less than 20mm. When hot and cold water pipes are used for water supply systems, semi-flexible pipes should be used. Third, the structural transformation 1. The installation of light steel keel should meet the combination requirements of the product, the installation position is correct, and the connection is firm and loose. 2. Fireproofing should be carried out before wooden keel and wooden cover plate are installed. 3. The filling material in the partition wall should be dry, with uniform thickness, flatness, and full filling. Anti-fall measures should be taken. Fourth, ceiling The ceiling keel shall not be twisted or deformed. The wooden keel shall have no bark and insect eyes, and be fire-proof and anti-corrosion treatment according to the provisions. The suspenders shall be arranged in a reasonable and straight manner. The metal suspenders and pendants shall be rust-proofed, and the keel shall be installed firmly and reliably. . Water and electricity acceptance clay project acceptance woodwork acceptance Our key products are litharge using in assaying of precious metal, and lead nitrate using in gold mining. Lead nitrate is used as medical astringent; tanning material for leather-making; dyeing mordant; photograph promoting agent; flotation for ore; chemical reagents; and also used for making fireworks, match, and other lead salts. In the mean time, we are sourcing the other chemical reagents for our mining customers in Australia, Canada, Africa etc. Mining Chemicals,Mining Chemicals Cationic Pam Flocculant,Copper Mining Chemicals,Blufloc Pam Mining Chemical Gemhold (SJZ) Trading Co., Ltd. , https://www.gemhold.cn
1. Product name:lead nitrate
2. Character: white crystal powder, relative density 4.53(20), easily soluble in water, liquid ammonia, light dissolve in ethyl alcohol, not dissolve in concentrated nitrate acid, solubility 56.5g/100g water (20). Dry lead nitrate decompose at 205-223. Damp lead nitrate decompose at 100, first become Pb(NO3)2 . PbO, go on heating, then become PbO. It is strong oxidant, putting together with organics will lead it burning, noxious.
3. Application: Used as flotation reagent for gold ore and other ore.