{"id":240769,"date":"2024-10-19T15:45:51","date_gmt":"2024-10-19T15:45:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-79222004\/"},"modified":"2024-10-25T10:31:03","modified_gmt":"2024-10-25T10:31:03","slug":"bs-79222004","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-79222004\/","title":{"rendered":"BS 7922:2004"},"content":{"rendered":"

This British Standard specifies tests and requirements for radial field, fluid-filled, paper or polypropylene paper laminate (PPL) insulated metal-sheathed cables and their accessories, which operate with a minimum static pressure of between 20 kPa (0.2 bar) and 300 kPa (3.0 bar) inclusive, a maximum static pressure of not more than 800 kPa (8.0 bar) and a minimum transient pressure of not less than 20 kPa (0.2 bar)1)<\/sup>.<\/p>\n

\n

NOTE The cables in this British Standard are specifically excluded from the scope of the Pressure Equipment Directive.<\/p>\n<\/blockquote>\n

It also specifies tests for cables and accessories with maximum static pressures exceeding 800 kPa (8.0 bar).<\/p>\n

This British Standard is applicable to cables and accessories intended for use in systems with nominal voltages not exceeding 400 kV between phases.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nBRITISH STANDARD <\/td>\n<\/tr>\n
2<\/td>\nCommittees responsible for this British\ufffdStandard <\/td>\n<\/tr>\n
3<\/td>\nContents <\/td>\n<\/tr>\n
5<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
6<\/td>\n3 Terms and definitions
3.1 cables screened with carbon-black paper
3.2 cables not screened with carbon-black paper
3.3 rated voltage
3.4 rated voltage
3.5 maximum voltage
3.6 peak voltage
4 Voltage designation <\/td>\n<\/tr>\n
7<\/td>\n5 Characteristics of cables and accessories
6 Test categories, frequency and conditions
6.1 Categories of tests <\/td>\n<\/tr>\n
8<\/td>\n6.2 Frequency of tests
Table 1 Number of samples for sample tests
6.3 Test conditions <\/td>\n<\/tr>\n
9<\/td>\n7 Routine tests on cables
7.1 General
7.2 Conductor resistance test
7.3 Capacitance test
7.4 Tan <\/td>\n<\/tr>\n
10<\/td>\nTable 2 Tan
Table 3 Tan
7.5 High-voltage test
7.6 Test on corrosion-resistant coverings <\/td>\n<\/tr>\n
11<\/td>\nTable 4 Standard values of system voltages and test voltages recommended for cables to\ufffdbe\ufffdused in 3-phase…
8 Sample tests on cables
8.1 Measurements of thickness <\/td>\n<\/tr>\n
12<\/td>\n8.2 Bending test
Table 5 Test cylinder diameters for bending test
8.3 Quality of insulation paper <\/td>\n<\/tr>\n
13<\/td>\n9 Routine tests on accessories
9.1 General
9.2 Hydraulic test
Table 6 Internal test pressure
9.3 Pressure\/feed tanks <\/td>\n<\/tr>\n
14<\/td>\nTable 7 Pressure\/volume characteristics
9.4 DC voltage test on joint sleeves and bonding lugs
10 Sample tests on accessories
10.1 Procedure
10.2 Requirement <\/td>\n<\/tr>\n
15<\/td>\n11 Type tests on cables and accessories
11.1 General
11.2 Measurement of thickness of insulation
11.3 Test conditions <\/td>\n<\/tr>\n
16<\/td>\n11.4 Electrical sequence tests <\/td>\n<\/tr>\n
19<\/td>\nTable 8 Waveshape
Table 9 Voltage levels <\/td>\n<\/tr>\n
21<\/td>\nTable 10 Lightning impulse test voltage levels
12 Non-electrical type tests on cables
12.1 General
12.2 Internal thermal resistance of complete cable <\/td>\n<\/tr>\n
22<\/td>\n12.3 Test on pressure-retaining sheath
12.4 Test on tail cable sheaths <\/td>\n<\/tr>\n
23<\/td>\n12.5 Oversheath tests <\/td>\n<\/tr>\n
24<\/td>\n13 Non-electrical type tests on accessories
13.1 General
13.2 Buried joints <\/td>\n<\/tr>\n
25<\/td>\nTable 11 Impulse voltage test levels
13.3 Outdoor terminations
table 12 Salt fog test voltage levels <\/td>\n<\/tr>\n
26<\/td>\n13.4 Gas-immersed terminations
14 Tests and requirements for direct reading pressure gauges
14.1 Classification
Table 13 Classification of gauges
14.2 Ranges <\/td>\n<\/tr>\n
27<\/td>\n14.3 Performance
14.4 Material and construction <\/td>\n<\/tr>\n
28<\/td>\n14.5 Electrical contacts <\/td>\n<\/tr>\n
29<\/td>\nFigure 1 Diagram showing internal electrical connections
14.6 Type approval tests <\/td>\n<\/tr>\n
30<\/td>\nTable 14 Climatic chamber temperatures for temperature limit tests <\/td>\n<\/tr>\n
32<\/td>\n14.7 Routine tests
14.8 Sample tests (Class\ufffd2A and Class\ufffd2B gauges only)
15 Tests after installation
15.1 High voltage d.c. test <\/td>\n<\/tr>\n
33<\/td>\nTable 15 High voltage test levels
15.2 Conductor d.c. resistance
15.3 Voltage test on oversheath and other sheath insulation
15.4 Sheath voltage limiters
Table 16 SVL test parameters <\/td>\n<\/tr>\n
34<\/td>\n15.5 Link contact resistance test
Table 17 Maximum contact resistance values
15.6 Fluid flow test
15.7 Impregnation coefficient <\/td>\n<\/tr>\n
35<\/td>\n15.8 Positive and zero sequence impedances <\/td>\n<\/tr>\n
36<\/td>\n16 Tests on ancillary equipment
16.1 Tests and requirements for cable bonding leads <\/td>\n<\/tr>\n
37<\/td>\nTable 18 Construction of single core bonding leads
Table 19 Construction of concentric bonding leads <\/td>\n<\/tr>\n
39<\/td>\nTable 20 Test voltages for bonding leads
Table 21 Conductor resistance
16.2 Tests and requirements for SVLs <\/td>\n<\/tr>\n
41<\/td>\n16.3 Physical requirements for link housings
Table 22 Short circuit requirements <\/td>\n<\/tr>\n
43<\/td>\n16.4 Type testing requirements for link housings
Table 23 Impulse voltage withstand levels <\/td>\n<\/tr>\n
44<\/td>\nAnnex A (informative) Methods of heating cable samples
a.1 Heating methods
A.2 Control of the temperatures
A.3 Determination of the temperature
Annex B (informative) Pressure drop <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electric cables. Fluid-filled, paper- and PPL-insulated, metal-sheathed cables and accessories for alternating voltages up to and including 400 kV (U<\/i>m<\/sub> = 420 kV). Requirements and test methods<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2004<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":240777,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[493,2641],"product_tag":[],"class_list":{"0":"post-240769","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-060-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/240769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/240777"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=240769"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=240769"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=240769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}