BS HD 60269-2:2010
$198.66
Low-voltage fuses – Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application). Examples of standardized systems of fuses A to J
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 54 |
The following additional requirements apply to fuses with fuse-links having bolted connections. Such fuses have rated currents up to and including 1 250 A and rated voltages up to and including 690 V a.c. and up to and including 500 V d.c.
The following characteristics of the fuses are specified in addition to the IEC 60269-1:
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minimum rated breaking capacities;
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time-current characteristics;
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I2t characteristics;
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standard conditions of construction;
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power dissipation and acceptable power dissipation.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | English CONTENTS |
| 11 | INTRODUCTION |
| 12 | 1 General scope |
| 13 | 1.2 Normative references |
| 14 | Fuse system E – Fuses with fuse-links for bolted connections (BS bolted fuse system) 1 General 1.1 Scope 2 Terms and definitions 3 Conditions for operation in service 4 Classification 5 Characteristics of fuses 5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder |
| 15 | 5.6 Limits of time-current characteristics 6 Markings 6.1 Markings of fuse-holders 6.2 Markings of fuse-links Table 501 – Conventional time and current for “gG” fuse-links Table 502 – Gates for specified pre-arcing times of “gG” fuse-links |
| 16 | 7 Standard conditions for construction 7.1 Mechanical design 7.2 Insulating properties and suitability for insulation 7.9 Protection against electric shock 8 Tests 8.3 Verification of temperature rise and power dissipation 8.4 Verification of operation 8.5 Verification of breaking capacity |
| 17 | 8.9 Verification of resistance to heat 8.10 Verification of non-deterioration of contacts 8.11 Mechanical and miscellaneous tests |
| 19 | Figure 501 – Fuse-links for bolted connection – Sizes A, B, C and D |
| 20 | Figure 502 – Fuse-links for bolted connection – Sizes A and B |
| 21 | Figure 503 – Typical fuse-holder |
| 23 | Figure 504 – Time-current zones for “gG” fuse-link |
| 24 | Figure 505 – Time-current zones for “gG” fuse-link |
| 25 | Figure 506 – Power dissipation test rig |
| 26 | Figure 507 – Breaking capacity test rig for fuse-links for bolted connection |
| 28 | Fuse system G – Fuses with fuse-links with offset blade contacts (BS clip-in fuse system) 1 General 1.1 Scope 2 Terms and definitions 3 Conditions for operation in service 4 Classification 5 Characteristics of fuses 5.2 Rated voltage |
| 29 | 5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder Table 701 – Conventional time and current for “gG” fuse-links Table 702 – Gates for specified pre-arcing times of “gG” fuse-links |
| 30 | 6 Markings 6.1 Markings of fuse-holders 6.2 Markings of fuse-links 7 Standard conditions for construction 7.1 Mechanical design 7.2 Insulating properties and suitability for insulation 7.7 I2t characteristics Table 703 – Sizes of copper conductors |
| 31 | 7.9 Protection against electric shock 8 Tests Table 704 – Pre-arcing I2t values at 0,01 s for “gG” fuse-links |
| 32 | 8.9 Verification of resistance to heat 8.10 Verification of non-deterioration of contacts 8.11 Mechanical and miscellaneous tests |
| 33 | Figure 701 – Fuse-links having offset blade contacts, sizes E1, F1, F2 and F3 |
| 34 | Figure 702 – Typical fuse-holder |
| 35 | Figure 703 – Time-current zones for “gG” fuse-links |
| 36 | Figure 704 – Time-current zones for “gG” fuse-links |
| 37 | Figure 705 – Power dissipation test rig |
| 38 | Fuse system I – gU fuse-links with wedge tightening contacts 1 General 1.1 Scope 2 Terms and definitions 3 Conditions for operation in service 3.9 Discrimination of fuse-links |
| 39 | 4 Classification 5 Characteristics of fuses 5.2 Rated voltage 5.5 Rated power dissipation of a fuse-link Table 901 – Maximum power dissipation values |
| 40 | 5.8 Cut-off current and I2t characteristics 6 Markings 6.1 Markings of fuse-holders 6.2 Markings of fuse-links 7 Standard conditions for construction 7.1 Mechanical design 7.2 Insulating properties and suitability for insulation 7.5 Breaking capacity 7.7 I2t characteristics |
| 41 | 7.8 Overcurrent discrimination of the fuse-links 8 Tests Table 902 – Pre-arcing I2t values for gU fuse-links at 0,01 s |
| 42 | Table 903 – Cross-sectional area of conductors for power dissipation and temperature- rise tests |
| 43 | 8.9 Verification of resistance to heat 8.11 Mechanical and miscellaneous tests |
| 44 | Figure 901 – Time-current zones for current ratings 100 A, 200 A, 355 A and 630 A |
| 45 | Figure 902 – Time-current zones for current ratings 160 A and 315 A |
| 46 | Figure 903 – Time-current zones for current ratings 250 A and 500 A |
| 47 | Figure 904 – Time-current zones for current ratings 200 A and 400 A |
| 48 | Figure 905 – Dimensions for fuse-links with L type and U type tags |
| 49 | Figure 906 – Power dissipation test rig |
| 50 | Figure 907 – Breaking capacity test rig |
| 52 | Bibliography |
