Quality Inspection for 300kn Porcelain Insulator - NLL Aluminum strain clamp(Bolt Type) – Johnson

Advantages of strain clamp:

1. Effectively eliminate short circuit accidents caused by overlapping of small animals or foreign bodies;
2. Prevent electrical accidents caused by condensation flash soldering, pollution flash soldering and icicle sticking snow;
3. Prevent acid rain, salt mist and harmful chemical gas from corroding the incoming and outgoing lines of the transformer;
4. Avoid personal injury or death caused by pedestrians touching exposed electrical contacts by mistake;
5. The protective cover and metering device are fully closed to prevent criminals from stealing electricity;
6. Buckle structure, simple installation and reusable.”

Power fittings are widely used in the process of high-voltage power. They also have many different types, which can meet various needs in use, so as to provide certain guarantee for our combination and connection of power system devices, and also play a certain protective role. Moreover, due to the high pressure in operation, it requires us to focus on quality when purchasing and returning products, so as to avoid problems in the use process and cause many unnecessary troubles and losses for the later application process. In addition, the ball joint, support frame and other products also have certain differences in characteristics and functions due to their own differences in production and design. We should also choose and buy according to our own actual needs, so as to give full play to its value in use, better provide services for us and promote the smooth progress of high-voltage power.

Product features:

1. The meanings of model letters and numbers in the table are: n represents tension clamp, l represents bolt type, l represents aluminum alloy, and numbers represent product serial number;

2. The body and pressing block are aluminum alloy, which has energy-saving effect. The closed pin is made of stainless steel, and the rest are hot-dip galvanized steel;
3. The grip force of the clamp shall not be less than 95% of the calculated breaking force of the conductor;
4. Add a bushing in the iron pin hole to become a tension clamp;
5. The surface color is uniform, the color is consistent, and there are no bubbles;
6. The section shall be uniform, free of bending and burr, and the surface shall be flat and smooth without bulge and sharp angle;
7. Strictly implement relevant international technical standards.