Information for ruling 600008530
This section is Advance Tariff Ruling
- Start date
- 19 Sep 2023
- Expiry date
- 18 Sep 2026
- Commodity code
- 8543709030 (opens in new tab)
- Description
- The product is a Pre-amplifier Switching Unit that is part of the General Service Depth Recorder used on submarines. It is used with a general purpose Echo Sounder which is set for shallow and deep water. It is made from multiple components including housing, plug, socket, transformers, printed circuit card, wiring and stainless steel fasteners. The components comprise a high-gain, low noise amplifier with a peak gain at 10kHz. The gain of the amplifier is greatly reduced when an externally produced suppression pulse is applied to it. The amplitude of the pulse, whose rate of decay is controlled by an external capacitor, determines the extent to which the gain of the amplifier is reduced. A limiting circuit is incorporated in the amplifier to prevent high-energy input signals from overloading and paralysing the equipment. A jack socket is also included for testing purposes. It is packaged in dedicated SPIS packaging.
- Keywords
-
- IN A HOUSING
- FOR ELECTRICAL CIRCUITS
- FOR TELECOMMUNICATIONS
- AMPLIFIERS
- Justification
- For the purposes of determining the commodity codes within which goods most appropriately fall, reg 3 (1) of The Customs Tariff (Establishment) (EU Exit) Regulations 2020 sets out that the rules of interpretation contained in the following have effect – a. Part Two (Goods Classification Table Rules of Interpretation) of the Tariff of the United Kingdom (Reg 3(1)(a)); and b. Notes to a section or chapter of the Goods Classification Table (Reg 3(1)(b)). GIR 1 has been used to classify this product by the terms of heading 8543 - electrical machines and apparatus, having individual functions, not specified or included elsewhere in this chapter. GIR 5b has been used to determine the type of packaging GIR 6 has been used to classify the goods to subheading level 854370 - other. 8 Digit code 85437090 - other. 10 Digit code 8543709030 - amplifier, consisting of active and passive elements mounted on a printed circuit, contained in a housing. Also classified in accordance with: note 9 to the HSEN's of heading 8543