The Specification covers the Design, manufacture, testing at manufacturers works and supplying, delivery of temper proof polycarbonate plastic seals for sealing electrical installations vlz: Meter body of energy meters. Terminal cover of energy meters and Metal Box, and for other accounting purpose. The size of the seal shall be 15 X 15 X 9mm. these seals shall be used for LT/HT Industrial Consumers and in theft prone areas.
The raw material used for polycarbonate plastic seals shall be of M/s. Dow Caller Ltd. Switzerland (Grade 201-15) M/s. GE Plastic, Singapore (Grade 143R), M/s. Du Pont, Japan (Grade LV-11, U.V. Stabilize), M/s Bayer Plastic (Grade-2407),M/s. Mitsubishi Engineering-Plastics Crop( Grade LUPILON PC S-3000UR) or any other equivalent manufacturer having similar material properties as under:
|1||Melting temperature||280° C to 295° C|
|4||Durability||Weather effect resistant|
|5||Transparency||Fully transparent (long time transparency)|
The seals will be colorless, transparent (See through) Type, which shall give complete visualization of its fixing mechanism and shall show clear indication if tempered. Also seals can be available in different colour like Red, Blue, Yellow, Green, and Orange etc.
The Seal will be Anchor type temper evident with double locking system as per drawing no. PB-002 attached with the specification only.
Non repeat seven digits Sr. Nos. with code no. on the seal shall be laser marked and it shall not be screen printed and it should be provided on male and female portion at the place mentioned in the drawing i.e. on the top in male part and on the bottom side of the female part. Please note that Sr. No. of seal shall not be embossed after the seal is manufactured.
The seal have monogram of Company logo in 8 mm circle on front side and month& year in figure on backside in 8 mm circle.
The non corrosive non magnetic as per is 316 stainless steel twisted wire (26 SWG) shall be used as under. The seal wire shall not have affect of magnet. i.e. it should not attract to magnet.
The seal shall be designed for a single use only and if Tempered with the help of puller, knife or any other sharp instruments, the seal shall be damaged and due to its see through property. The sign internal of tempering shall be easily detected. Also once opened, it cannot be re-used. The Seal shall be made in such a way that, it can be easily locked with the help of finger and thumb pressing and no tools shall be required to close the seal in the laboratory or at site. After inserting the seal wire through female pare, the cap of the male part shall be fitted in the female part in such a way that it should not leave any space to avoid insertion of any sharp tools for opening of seal body of the female part in hot or cold condition. The seal shall have also the following features.
The seal shall be type tested for the following tests, and type test should not be more than 5 year old.
The seal shall be tested at the manufacturer’s works for the following tests:
Minimum 5 samples of seals shall be selected at random as per IS 4905 for testing purpose from the each lot. The seals used in testing shall be destroyed in the presence of inspecting officer.
We will supply the seals as per delivery schedule of the client after inspections of the same. Please note that the seal shall be manufactured only after receipt of the conformed purchase order and as per the delivery schedule unless specifically instructed by the authority.
The seal will be guaranteed for a minimum period of two years. In case, if any defect in design and manufacturing is noticed within the guarantee period the seals shall be replaced within one month free of cost.
The seals are to be manufactures as per enclosed drawing only. The size of the seal, type and dimension of the seal shall be strictly as per the drawing only.
Our company are responsible for suitable packing of seal as per client requirements and we are supply each 100 seals in chronological order i.e. arranging in serially , tide with the steel wire forming a loop and the same shall be packed in polythene bag with labels furnishing sr. nos. of seal, packed in corrugated box.
The sample of seals with logo of firm on front side & month & year of manufacturing on backside of the female part of the seal. The seals shall also be provided sr. no. of 0000001 to 0000010 on top of the male part of the seal as well as side of the female part of the seal as shown in the drawing.
If desired by the client, client will arrange stage inspection for the material used for the manufacturing of seal and process of manufacturing.