Tubular Vitreous Enamelled
General Note
Welwyn Components rerves the right to make changes in product specification without notice or liability.
香港文学All information is subject to Welwyn’s own data, relates to current manufacture and is considered accurate at time of going to print.© Welwyn Components Limited· Bedlington, Northumberland NE22 7AA, UK
A subsidiary of TT electronics plc
Terminations
Styles B, 4B, AP and AW are available in all 13 tube sizes. Styles C, CB and CP are available in sizes 1601 to 1609 inclusive, 1906 and 1908
Lugs (Figure 2): Pb free solder coated nickel iron. Denoted by prefix B to size reference, thus B1602
Pigtails (Figure 3): 14/.193 mm copper, 150 mm minimum length. Denoted by prefix AP, thus AP1602
Rigid wires (Figure 4): 1.2 mm diameter tinned copper, 32 mm minimum length.
Denoted by prefix AW, thus: AW1602
Lugs with screws, nuts and washers (Figure 5): Nickel plated brass screws and nuts. Denoted by prefix 4B, thus: 4B1602.Ferrule, electrically isolated (Figure 6) Connection to resistor via Pb free solder coated nickle iron lugs. Denoted by prefix CB, thus: CB1602.
Ferrule, electrically live (Figure 7) Nickel plated brass. Denoted by prefix C, thus: C1602.
Ferrule, electrically isolated (Figure 8): Connection to resistor via pigtails of 14/.193 mm copper, 150mm minimum length. Denoted by prefix CP thus: CP1602 Marking The resistors are legend marked with type reference, resistance value, tolerance and manufacturing date code. Value marking conforms to IEC 62.
Solvent resistance: The vitreous coating and marking are resistant to all accepted industrial cleaning fluids.
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
隐欲Resistance range (ohms)
Min. for Min. for Max. for styles VC,all other all styles VCP styles
43 1.6k
43 2.5k教师资格证答案
66 3.0k
景德镇学院是几本88 5.3k
66 4.5k
11107.5k 1198.1k 141313.2k 171615.4k 252425.5k
*Maximum total dissipation assumes that this will be
evenly spread over the total element length.
The recommended dissipations for each of the resistor hot
spot temperatures applies to resistors mounted horizontally. If
the bore is completely blocked a 15% derating is
recommended. However, wherever possible, resistors should
be mounted vertically with unobstructed bore.
This makes best u of the chimney effect of the heated tube
and will encourage a cooling stream of air through the bore.
Allowances must be made, when tubular resistors are mounted
in banks, for the effects produced by radiation between tubes.
优美的句子摘抄大全Appreciable reduction of hot spot temperature can be
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achieved by arranging that resistors are subjected to some
measure of forced draught. In general, it is most efficient to
extract air from the resistor enclosure and arrange that an air
公司房屋租赁合同inlet is adjacent to the bottom of the tubes.
If soft soldered connections are ud the resistors should be derated
where applicable to limit the hot spot temperature to 300°C.© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Ordering Procedure
Mounting plugs are denoted by the prefix ‘F’ added to the size BF1602 and APF1602.笔记本怎么加内存